./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- 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 10:46:22,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:46:22,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:46:22,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:46:22,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:46:22,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:46:22,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:46:22,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:46:22,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:46:22,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:46:22,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:46:22,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:46:22,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:46:22,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:46:22,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:46:22,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:46:22,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:46:22,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:46:22,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:46:22,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:46:22,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:46:22,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:46:22,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:46:22,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:46:22,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:46:22,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:46:22,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:46:22,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:46:22,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:46:22,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:46:22,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:46:22,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:46:22,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:46:22,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:46:22,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:46:22,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:46:22,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:46:22,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:46:22,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:46:22,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:46:22,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:46:22,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:46:22,731 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:46:22,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:46:22,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:46:22,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:46:22,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:46:22,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:46:22,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:46:22,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:46:22,739 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:46:22,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:46:22,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:46:22,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:46:22,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:46:22,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:46:22,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:46:22,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:46:22,742 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:46:22,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:46:22,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:46:22,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:46:22,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:46:22,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:46:22,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:46:22,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:46:22,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:46:22,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:46:22,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:46:22,744 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:46:22,744 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:46:22,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:46:22,745 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-11-20 10:46:23,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:46:23,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:46:23,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:46:23,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:46:23,086 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:46:23,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-20 10:46:26,419 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:46:27,073 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:46:27,074 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-20 10:46:27,124 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/data/bb86d531b/a668d3b0c41043d88befef296166e534/FLAGcc8fd5930 [2022-11-20 10:46:27,147 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/data/bb86d531b/a668d3b0c41043d88befef296166e534 [2022-11-20 10:46:27,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:46:27,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:46:27,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:46:27,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:46:27,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:46:27,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:27" (1/1) ... [2022-11-20 10:46:27,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c954ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:27, skipping insertion in model container [2022-11-20 10:46:27,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:27" (1/1) ... [2022-11-20 10:46:27,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:46:27,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:46:27,656 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-20 10:46:27,666 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-20 10:46:28,964 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,965 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,966 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,967 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,968 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,985 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,987 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,989 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,990 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,993 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,994 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,995 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:28,996 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:29,584 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 10:46:29,586 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 10:46:29,587 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 10:46:29,589 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 10:46:29,592 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 10:46:29,593 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 10:46:29,594 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 10:46:29,595 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 10:46:29,596 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 10:46:29,597 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 10:46:29,923 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 10:46:29,978 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:29,987 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:29,994 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,003 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,094 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,096 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,097 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,097 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,098 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,101 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,102 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,102 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,103 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,103 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,104 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,105 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,105 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,110 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,111 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,111 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,112 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,124 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,125 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,137 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,138 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,139 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:46:30,228 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:46:30,257 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-20 10:46:30,264 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-20 10:46:30,337 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,340 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,340 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,341 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,342 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,360 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,360 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,362 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,362 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,364 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,366 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,367 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,368 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,427 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 10:46:30,431 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 10:46:30,432 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 10:46:30,432 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 10:46:30,433 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 10:46:30,435 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 10:46:30,435 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 10:46:30,436 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 10:46:30,437 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 10:46:30,439 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 10:46:30,481 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 10:46:30,502 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,502 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,503 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,511 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,547 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,551 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,552 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,552 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,553 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,553 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,554 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,554 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,555 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,556 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,556 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,556 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,557 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,557 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,558 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,558 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,558 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,561 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,561 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,570 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,570 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,571 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:46:30,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:46:30,825 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:46:30,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30 WrapperNode [2022-11-20 10:46:30,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:46:30,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:46:30,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:46:30,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:46:30,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:30,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,101 INFO L138 Inliner]: procedures = 697, calls = 1886, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 918 [2022-11-20 10:46:31,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:46:31,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:46:31,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:46:31,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:46:31,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,183 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:46:31,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:46:31,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:46:31,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:46:31,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (1/1) ... [2022-11-20 10:46:31,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:46:31,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:31,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:46:31,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:46:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2022-11-20 10:46:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2022-11-20 10:46:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-20 10:46:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-20 10:46:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-20 10:46:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-20 10:46:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:46:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-20 10:46:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-20 10:46:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-20 10:46:31,308 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-20 10:46:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 10:46:31,308 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 10:46:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-20 10:46:31,309 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-20 10:46:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:46:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-20 10:46:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-20 10:46:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 10:46:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 10:46:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:46:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:46:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:46:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-20 10:46:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-20 10:46:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-20 10:46:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-20 10:46:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:46:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:46:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 10:46:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 10:46:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-20 10:46:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-20 10:46:31,325 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-20 10:46:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-20 10:46:31,325 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-20 10:46:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-20 10:46:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-20 10:46:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-20 10:46:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:46:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:46:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-20 10:46:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-20 10:46:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:46:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:46:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:46:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-20 10:46:31,328 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-20 10:46:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-20 10:46:31,328 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-20 10:46:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-20 10:46:31,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-20 10:46:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:46:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-20 10:46:31,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-20 10:46:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-20 10:46:31,329 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-20 10:46:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-20 10:46:31,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-20 10:46:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:46:31,830 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:46:31,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:46:33,466 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:46:33,477 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:46:33,478 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 10:46:33,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:33 BoogieIcfgContainer [2022-11-20 10:46:33,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:46:33,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:46:33,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:46:33,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:46:33,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:46:27" (1/3) ... [2022-11-20 10:46:33,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7d24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:33, skipping insertion in model container [2022-11-20 10:46:33,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:30" (2/3) ... [2022-11-20 10:46:33,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7d24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:33, skipping insertion in model container [2022-11-20 10:46:33,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:33" (3/3) ... [2022-11-20 10:46:33,491 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2022-11-20 10:46:33,513 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:46:33,513 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 10:46:33,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:46:33,587 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;@3dbf81e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:46:33,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 10:46:33,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 210 states have (on average 1.2571428571428571) internal successors, (264), 213 states have internal predecessors, (264), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2022-11-20 10:46:33,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 10:46:33,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:33,613 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 10:46:33,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:33,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:33,620 INFO L85 PathProgramCache]: Analyzing trace with hash -690035522, now seen corresponding path program 1 times [2022-11-20 10:46:33,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:33,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869233550] [2022-11-20 10:46:33,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:33,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:46:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:46:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:46:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 10:46:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:46:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:46:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 10:46:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:46:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:46:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 10:46:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 10:46:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 10:46:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 10:46:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 10:46:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 10:46:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:46:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-20 10:46:34,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:34,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869233550] [2022-11-20 10:46:34,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869233550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:34,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:34,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:46:34,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003779844] [2022-11-20 10:46:34,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:34,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:46:34,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:46:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:46:34,967 INFO L87 Difference]: Start difference. First operand has 350 states, 210 states have (on average 1.2571428571428571) internal successors, (264), 213 states have internal predecessors, (264), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:46:37,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:37,113 INFO L93 Difference]: Finished difference Result 805 states and 1317 transitions. [2022-11-20 10:46:37,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:46:37,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-11-20 10:46:37,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:37,135 INFO L225 Difference]: With dead ends: 805 [2022-11-20 10:46:37,135 INFO L226 Difference]: Without dead ends: 461 [2022-11-20 10:46:37,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:46:37,151 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 139 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:37,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 664 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 10:46:37,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-20 10:46:37,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 343. [2022-11-20 10:46:37,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 205 states have (on average 1.2195121951219512) internal successors, (250), 207 states have internal predecessors, (250), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-20 10:46:37,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 474 transitions. [2022-11-20 10:46:37,318 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 474 transitions. Word has length 103 [2022-11-20 10:46:37,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:37,324 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 474 transitions. [2022-11-20 10:46:37,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:46:37,325 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 474 transitions. [2022-11-20 10:46:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 10:46:37,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:37,336 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 10:46:37,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:46:37,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:37,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:37,338 INFO L85 PathProgramCache]: Analyzing trace with hash -161641532, now seen corresponding path program 1 times [2022-11-20 10:46:37,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:37,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919909881] [2022-11-20 10:46:37,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:37,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:37,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:46:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:37,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:46:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:46:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 10:46:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:46:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:46:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 10:46:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:46:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:46:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 10:46:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 10:46:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 10:46:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 10:46:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 10:46:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 10:46:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:46:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-20 10:46:38,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:38,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919909881] [2022-11-20 10:46:38,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919909881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:46:38,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288271791] [2022-11-20 10:46:38,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:38,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:38,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:38,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:38,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:46:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:38,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:46:38,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-20 10:46:38,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:38,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288271791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:38,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:46:38,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-20 10:46:38,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452862675] [2022-11-20 10:46:38,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:38,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:38,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:38,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:46:38,896 INFO L87 Difference]: Start difference. First operand 343 states and 474 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:46:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:38,983 INFO L93 Difference]: Finished difference Result 429 states and 584 transitions. [2022-11-20 10:46:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:38,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-11-20 10:46:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:38,987 INFO L225 Difference]: With dead ends: 429 [2022-11-20 10:46:38,988 INFO L226 Difference]: Without dead ends: 344 [2022-11-20 10:46:38,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:46:38,990 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 0 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:38,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 941 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:46:38,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-11-20 10:46:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2022-11-20 10:46:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 206 states have (on average 1.2184466019417475) internal successors, (251), 208 states have internal predecessors, (251), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-20 10:46:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 475 transitions. [2022-11-20 10:46:39,071 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 475 transitions. Word has length 103 [2022-11-20 10:46:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:39,072 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 475 transitions. [2022-11-20 10:46:39,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:46:39,073 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 475 transitions. [2022-11-20 10:46:39,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 10:46:39,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:39,075 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2022-11-20 10:46:39,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 10:46:39,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:39,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:39,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:39,286 INFO L85 PathProgramCache]: Analyzing trace with hash 2109657165, now seen corresponding path program 1 times [2022-11-20 10:46:39,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:39,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134951296] [2022-11-20 10:46:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:39,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:46:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:46:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:46:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 10:46:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:46:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:46:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 10:46:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:46:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:46:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 10:46:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 10:46:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 10:46:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-20 10:46:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 10:46:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-20 10:46:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-20 10:46:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-20 10:46:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 10:46:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-20 10:46:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,130 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-20 10:46:40,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:40,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134951296] [2022-11-20 10:46:40,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134951296] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:46:40,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557216224] [2022-11-20 10:46:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:40,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:40,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:40,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:40,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:46:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:40,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:46:40,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:40,852 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-20 10:46:40,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:40,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557216224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:40,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:46:40,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-20 10:46:40,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53169046] [2022-11-20 10:46:40,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:40,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:46:40,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:40,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:46:40,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:46:40,856 INFO L87 Difference]: Start difference. First operand 344 states and 475 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:46:41,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:41,187 INFO L93 Difference]: Finished difference Result 654 states and 914 transitions. [2022-11-20 10:46:41,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:46:41,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 122 [2022-11-20 10:46:41,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:41,191 INFO L225 Difference]: With dead ends: 654 [2022-11-20 10:46:41,192 INFO L226 Difference]: Without dead ends: 346 [2022-11-20 10:46:41,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:46:41,195 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 492 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:41,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1661 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:46:41,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-11-20 10:46:41,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-11-20 10:46:41,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 207 states have (on average 1.2173913043478262) internal successors, (252), 210 states have internal predecessors, (252), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2022-11-20 10:46:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 484 transitions. [2022-11-20 10:46:41,239 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 484 transitions. Word has length 122 [2022-11-20 10:46:41,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:41,240 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 484 transitions. [2022-11-20 10:46:41,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:46:41,240 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 484 transitions. [2022-11-20 10:46:41,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-20 10:46:41,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:41,242 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:41,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:41,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:41,452 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:41,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:41,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1370525804, now seen corresponding path program 1 times [2022-11-20 10:46:41,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:41,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499700308] [2022-11-20 10:46:41,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:41,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:46:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 10:46:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 10:46:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 10:46:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:46:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:46:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 10:46:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:46:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 10:46:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 10:46:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:46:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 10:46:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 10:46:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 10:46:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-20 10:46:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-20 10:46:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-20 10:46:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-20 10:46:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-20 10:46:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-20 10:46:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-20 10:46:42,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:42,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499700308] [2022-11-20 10:46:42,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499700308] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:46:42,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265871680] [2022-11-20 10:46:42,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:42,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:42,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:42,437 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:42,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:46:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:43,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:46:43,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-20 10:46:43,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:43,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265871680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:43,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:46:43,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-20 10:46:43,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886555081] [2022-11-20 10:46:43,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:43,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:46:43,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:43,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:46:43,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:46:43,247 INFO L87 Difference]: Start difference. First operand 346 states and 484 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-20 10:46:43,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:43,679 INFO L93 Difference]: Finished difference Result 677 states and 969 transitions. [2022-11-20 10:46:43,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:46:43,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 130 [2022-11-20 10:46:43,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:43,685 INFO L225 Difference]: With dead ends: 677 [2022-11-20 10:46:43,685 INFO L226 Difference]: Without dead ends: 367 [2022-11-20 10:46:43,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:46:43,689 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 95 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:43,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 2519 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:46:43,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-20 10:46:43,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2022-11-20 10:46:43,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 223 states have (on average 1.2286995515695067) internal successors, (274), 226 states have internal predecessors, (274), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-20 10:46:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 521 transitions. [2022-11-20 10:46:43,732 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 521 transitions. Word has length 130 [2022-11-20 10:46:43,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:43,733 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 521 transitions. [2022-11-20 10:46:43,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-20 10:46:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2022-11-20 10:46:43,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-20 10:46:43,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:43,739 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 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 10:46:43,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:43,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:43,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:43,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:43,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2147450587, now seen corresponding path program 1 times [2022-11-20 10:46:43,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:43,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402563355] [2022-11-20 10:46:43,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:43,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:44,034 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:46:44,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [546535968] [2022-11-20 10:46:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:44,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:44,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:44,036 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:44,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:46:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:44,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 2455 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:46:44,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-20 10:46:44,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:44,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:44,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402563355] [2022-11-20 10:46:44,828 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:46:44,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546535968] [2022-11-20 10:46:44,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546535968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:44,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:44,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:46:44,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004533725] [2022-11-20 10:46:44,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:44,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:46:44,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:44,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:46:44,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:46:44,832 INFO L87 Difference]: Start difference. First operand 365 states and 521 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-20 10:46:45,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:45,332 INFO L93 Difference]: Finished difference Result 702 states and 1026 transitions. [2022-11-20 10:46:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:46:45,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 145 [2022-11-20 10:46:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:45,341 INFO L225 Difference]: With dead ends: 702 [2022-11-20 10:46:45,344 INFO L226 Difference]: Without dead ends: 373 [2022-11-20 10:46:45,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:46:45,350 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 516 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:45,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 2034 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:46:45,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-20 10:46:45,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 365. [2022-11-20 10:46:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 223 states have (on average 1.2286995515695067) internal successors, (274), 226 states have internal predecessors, (274), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-20 10:46:45,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 521 transitions. [2022-11-20 10:46:45,408 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 521 transitions. Word has length 145 [2022-11-20 10:46:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:45,409 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 521 transitions. [2022-11-20 10:46:45,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-20 10:46:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2022-11-20 10:46:45,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 10:46:45,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:45,414 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:45,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:45,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:45,623 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:45,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash -467005651, now seen corresponding path program 1 times [2022-11-20 10:46:45,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:45,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590736331] [2022-11-20 10:46:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:45,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:45,702 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:46:45,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327046084] [2022-11-20 10:46:45,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:45,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:45,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:45,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:45,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:46:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:46,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:46:46,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:46,421 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-20 10:46:46,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:46,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:46,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590736331] [2022-11-20 10:46:46,421 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:46:46,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327046084] [2022-11-20 10:46:46,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327046084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:46,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:46,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:46:46,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620330291] [2022-11-20 10:46:46,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:46,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:46:46,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:46,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:46:46,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:46:46,424 INFO L87 Difference]: Start difference. First operand 365 states and 521 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-20 10:46:46,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:46,944 INFO L93 Difference]: Finished difference Result 728 states and 1064 transitions. [2022-11-20 10:46:46,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:46:46,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 161 [2022-11-20 10:46:46,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:46,949 INFO L225 Difference]: With dead ends: 728 [2022-11-20 10:46:46,949 INFO L226 Difference]: Without dead ends: 399 [2022-11-20 10:46:46,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:46:46,952 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 117 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:46,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2883 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:46:46,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-20 10:46:46,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 365. [2022-11-20 10:46:46,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 223 states have (on average 1.2286995515695067) internal successors, (274), 226 states have internal predecessors, (274), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-20 10:46:46,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 521 transitions. [2022-11-20 10:46:46,981 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 521 transitions. Word has length 161 [2022-11-20 10:46:46,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:46,982 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 521 transitions. [2022-11-20 10:46:46,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-20 10:46:46,982 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2022-11-20 10:46:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-20 10:46:46,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:46,985 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:46,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:47,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 10:46:47,194 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:47,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:47,195 INFO L85 PathProgramCache]: Analyzing trace with hash -298586752, now seen corresponding path program 1 times [2022-11-20 10:46:47,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:47,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801099958] [2022-11-20 10:46:47,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:47,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:47,268 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:46:47,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551071443] [2022-11-20 10:46:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:47,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:47,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:47,270 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:47,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:46:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:47,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 2668 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:46:47,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:48,023 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-20 10:46:48,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:48,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:48,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801099958] [2022-11-20 10:46:48,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:46:48,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551071443] [2022-11-20 10:46:48,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551071443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:48,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:48,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:46:48,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221708025] [2022-11-20 10:46:48,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:48,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:46:48,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:48,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:46:48,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:46:48,027 INFO L87 Difference]: Start difference. First operand 365 states and 521 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 10:46:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:48,440 INFO L93 Difference]: Finished difference Result 667 states and 967 transitions. [2022-11-20 10:46:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:46:48,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 176 [2022-11-20 10:46:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:48,444 INFO L225 Difference]: With dead ends: 667 [2022-11-20 10:46:48,445 INFO L226 Difference]: Without dead ends: 367 [2022-11-20 10:46:48,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:46:48,448 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 533 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:48,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 2350 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:46:48,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-20 10:46:48,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2022-11-20 10:46:48,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 224 states have (on average 1.2276785714285714) internal successors, (275), 228 states have internal predecessors, (275), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-11-20 10:46:48,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 528 transitions. [2022-11-20 10:46:48,522 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 528 transitions. Word has length 176 [2022-11-20 10:46:48,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:48,523 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 528 transitions. [2022-11-20 10:46:48,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 10:46:48,523 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 528 transitions. [2022-11-20 10:46:48,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-20 10:46:48,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:48,527 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:48,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:48,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:48,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:48,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:48,738 INFO L85 PathProgramCache]: Analyzing trace with hash -186285584, now seen corresponding path program 1 times [2022-11-20 10:46:48,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:48,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778864770] [2022-11-20 10:46:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:48,878 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:46:48,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713181276] [2022-11-20 10:46:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:48,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:48,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:48,881 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:48,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:46:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:49,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 2859 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:46:49,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-11-20 10:46:49,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:49,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:49,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778864770] [2022-11-20 10:46:49,738 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:46:49,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713181276] [2022-11-20 10:46:49,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713181276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:49,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:49,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:46:49,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71983729] [2022-11-20 10:46:49,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:49,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:46:49,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:49,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:46:49,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:46:49,741 INFO L87 Difference]: Start difference. First operand 367 states and 528 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-20 10:46:50,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:50,410 INFO L93 Difference]: Finished difference Result 672 states and 982 transitions. [2022-11-20 10:46:50,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:46:50,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 199 [2022-11-20 10:46:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:50,415 INFO L225 Difference]: With dead ends: 672 [2022-11-20 10:46:50,415 INFO L226 Difference]: Without dead ends: 370 [2022-11-20 10:46:50,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:46:50,418 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 557 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:50,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 2689 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:46:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-20 10:46:50,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2022-11-20 10:46:50,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 225 states have (on average 1.2266666666666666) internal successors, (276), 229 states have internal predecessors, (276), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-11-20 10:46:50,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 529 transitions. [2022-11-20 10:46:50,445 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 529 transitions. Word has length 199 [2022-11-20 10:46:50,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:50,446 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 529 transitions. [2022-11-20 10:46:50,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-20 10:46:50,446 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 529 transitions. [2022-11-20 10:46:50,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-20 10:46:50,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:50,450 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2022-11-20 10:46:50,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:50,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:50,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:50,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:50,662 INFO L85 PathProgramCache]: Analyzing trace with hash 157414643, now seen corresponding path program 2 times [2022-11-20 10:46:50,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:50,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145472775] [2022-11-20 10:46:50,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:50,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:50,755 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:46:50,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576136463] [2022-11-20 10:46:50,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:46:50,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:50,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:50,757 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:50,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:46:51,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:46:51,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:46:51,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 3072 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:46:51,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:51,693 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-11-20 10:46:51,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:51,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:51,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145472775] [2022-11-20 10:46:51,694 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:46:51,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576136463] [2022-11-20 10:46:51,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576136463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:51,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:51,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 10:46:51,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083662342] [2022-11-20 10:46:51,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:51,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:46:51,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:51,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:46:51,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:46:51,696 INFO L87 Difference]: Start difference. First operand 368 states and 529 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 10:46:52,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:52,317 INFO L93 Difference]: Finished difference Result 664 states and 966 transitions. [2022-11-20 10:46:52,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:46:52,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 230 [2022-11-20 10:46:52,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:52,322 INFO L225 Difference]: With dead ends: 664 [2022-11-20 10:46:52,322 INFO L226 Difference]: Without dead ends: 370 [2022-11-20 10:46:52,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:46:52,325 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 551 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:52,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 3029 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:46:52,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-20 10:46:52,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-11-20 10:46:52,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 226 states have (on average 1.2256637168141593) internal successors, (277), 231 states have internal predecessors, (277), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (142), 114 states have call predecessors, (142), 113 states have call successors, (142) [2022-11-20 10:46:52,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 534 transitions. [2022-11-20 10:46:52,352 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 534 transitions. Word has length 230 [2022-11-20 10:46:52,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:52,353 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 534 transitions. [2022-11-20 10:46:52,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 10:46:52,354 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 534 transitions. [2022-11-20 10:46:52,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-20 10:46:52,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:52,358 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2022-11-20 10:46:52,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:52,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-20 10:46:52,572 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:52,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:52,572 INFO L85 PathProgramCache]: Analyzing trace with hash 447641373, now seen corresponding path program 1 times [2022-11-20 10:46:52,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:52,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415205313] [2022-11-20 10:46:52,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:52,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:52,666 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:46:52,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059893626] [2022-11-20 10:46:52,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:52,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:52,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:52,668 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:52,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 10:46:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:53,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 3454 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 10:46:53,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-20 10:46:53,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:46:53,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:53,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415205313] [2022-11-20 10:46:53,740 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:46:53,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059893626] [2022-11-20 10:46:53,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059893626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:53,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:53,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:46:53,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799151085] [2022-11-20 10:46:53,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:53,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:46:53,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:53,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:46:53,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:46:53,743 INFO L87 Difference]: Start difference. First operand 370 states and 534 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 10:46:54,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:54,646 INFO L93 Difference]: Finished difference Result 666 states and 969 transitions. [2022-11-20 10:46:54,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:46:54,647 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 276 [2022-11-20 10:46:54,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:54,651 INFO L225 Difference]: With dead ends: 666 [2022-11-20 10:46:54,651 INFO L226 Difference]: Without dead ends: 370 [2022-11-20 10:46:54,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:46:54,655 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 578 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:54,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 3339 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:46:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-20 10:46:54,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2022-11-20 10:46:54,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 225 states have (on average 1.2266666666666666) internal successors, (276), 229 states have internal predecessors, (276), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (136), 114 states have call predecessors, (136), 113 states have call successors, (136) [2022-11-20 10:46:54,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 527 transitions. [2022-11-20 10:46:54,683 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 527 transitions. Word has length 276 [2022-11-20 10:46:54,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:54,684 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 527 transitions. [2022-11-20 10:46:54,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 10:46:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 527 transitions. [2022-11-20 10:46:54,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-20 10:46:54,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:54,689 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:54,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:54,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 10:46:54,903 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:54,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:54,903 INFO L85 PathProgramCache]: Analyzing trace with hash -548532414, now seen corresponding path program 1 times [2022-11-20 10:46:54,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:54,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975393043] [2022-11-20 10:46:54,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:54,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:54,990 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:46:54,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003485622] [2022-11-20 10:46:54,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:54,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:54,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:54,992 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:55,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 10:46:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:55,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 2834 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:46:55,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 185 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-20 10:46:55,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:46:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-20 10:46:56,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:56,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975393043] [2022-11-20 10:46:56,343 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:46:56,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003485622] [2022-11-20 10:46:56,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003485622] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:46:56,343 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:46:56,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-11-20 10:46:56,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144338262] [2022-11-20 10:46:56,344 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:46:56,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:46:56,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:56,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:46:56,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:46:56,346 INFO L87 Difference]: Start difference. First operand 368 states and 527 transitions. Second operand has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 9 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 5 states have call predecessors, (45), 9 states have call successors, (45) [2022-11-20 10:46:56,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:56,868 INFO L93 Difference]: Finished difference Result 690 states and 1005 transitions. [2022-11-20 10:46:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:46:56,869 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 9 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 5 states have call predecessors, (45), 9 states have call successors, (45) Word has length 218 [2022-11-20 10:46:56,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:56,873 INFO L225 Difference]: With dead ends: 690 [2022-11-20 10:46:56,874 INFO L226 Difference]: Without dead ends: 387 [2022-11-20 10:46:56,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 421 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:46:56,877 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 275 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:56,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 2846 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:46:56,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-20 10:46:56,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 384. [2022-11-20 10:46:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 239 states have (on average 1.2343096234309623) internal successors, (295), 243 states have internal predecessors, (295), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (143), 116 states have call predecessors, (143), 114 states have call successors, (143) [2022-11-20 10:46:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 554 transitions. [2022-11-20 10:46:56,915 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 554 transitions. Word has length 218 [2022-11-20 10:46:56,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:56,916 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 554 transitions. [2022-11-20 10:46:56,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 9 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 5 states have call predecessors, (45), 9 states have call successors, (45) [2022-11-20 10:46:56,916 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 554 transitions. [2022-11-20 10:46:56,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-20 10:46:56,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:56,921 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:56,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:57,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 10:46:57,134 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:57,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:57,134 INFO L85 PathProgramCache]: Analyzing trace with hash 294303300, now seen corresponding path program 2 times [2022-11-20 10:46:57,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:57,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620685145] [2022-11-20 10:46:57,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:57,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:57,271 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 10:46:57,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935880777] [2022-11-20 10:46:57,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:46:57,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:46:57,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:46:57,274 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:46:57,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 10:46:58,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:46:58,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:46:58,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-20 10:46:58,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:59,361 INFO L321 Elim1Store]: treesize reduction 164, result has 50.2 percent of original size [2022-11-20 10:46:59,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 42 select indices, 42 select index equivalence classes, 820 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 41 case distinctions, treesize of input 211 treesize of output 291 [2022-11-20 10:47:03,855 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 41 dual juncts. [2022-11-20 10:47:03,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:47:03,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620685145] [2022-11-20 10:47:03,856 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 10:47:03,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935880777] [2022-11-20 10:47:03,856 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-20 10:47:03,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:04,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:47:04,075 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) [2022-11-20 10:47:04,078 INFO L158 Benchmark]: Toolchain (without parser) took 36923.04ms. Allocated memory was 159.4MB in the beginning and 463.5MB in the end (delta: 304.1MB). Free memory was 119.6MB in the beginning and 156.5MB in the end (delta: -36.9MB). Peak memory consumption was 271.1MB. Max. memory is 16.1GB. [2022-11-20 10:47:04,078 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory was 55.0MB in the beginning and 54.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:47:04,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3665.09ms. Allocated memory is still 159.4MB. Free memory was 119.1MB in the beginning and 65.0MB in the end (delta: 54.1MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2022-11-20 10:47:04,079 INFO L158 Benchmark]: Boogie Procedure Inliner took 275.59ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 64.2MB in the beginning and 150.4MB in the end (delta: -86.2MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-11-20 10:47:04,079 INFO L158 Benchmark]: Boogie Preprocessor took 96.93ms. Allocated memory is still 205.5MB. Free memory was 150.4MB in the beginning and 142.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:47:04,080 INFO L158 Benchmark]: RCFGBuilder took 2280.30ms. Allocated memory is still 205.5MB. Free memory was 142.0MB in the beginning and 75.9MB in the end (delta: 66.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2022-11-20 10:47:04,080 INFO L158 Benchmark]: TraceAbstraction took 30593.74ms. Allocated memory was 205.5MB in the beginning and 463.5MB in the end (delta: 257.9MB). Free memory was 74.9MB in the beginning and 156.5MB in the end (delta: -81.6MB). Peak memory consumption was 178.1MB. Max. memory is 16.1GB. [2022-11-20 10:47:04,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory was 55.0MB in the beginning and 54.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3665.09ms. Allocated memory is still 159.4MB. Free memory was 119.1MB in the beginning and 65.0MB in the end (delta: 54.1MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 275.59ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 64.2MB in the beginning and 150.4MB in the end (delta: -86.2MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.93ms. Allocated memory is still 205.5MB. Free memory was 150.4MB in the beginning and 142.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2280.30ms. Allocated memory is still 205.5MB. Free memory was 142.0MB in the beginning and 75.9MB in the end (delta: 66.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * TraceAbstraction took 30593.74ms. Allocated memory was 205.5MB in the beginning and 463.5MB in the end (delta: 257.9MB). Free memory was 74.9MB in the beginning and 156.5MB in the end (delta: -81.6MB). Peak memory consumption was 178.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 10:47:04,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- 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 10:47:06,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:47:06,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:47:06,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:47:06,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:47:06,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:47:06,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:47:06,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:47:06,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:47:06,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:47:06,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:47:06,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:47:06,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:47:06,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:47:06,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:47:06,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:47:06,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:47:06,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:47:06,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:47:06,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:47:06,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:47:06,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:47:06,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:47:06,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:47:06,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:47:06,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:47:06,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:47:06,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:47:06,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:47:06,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:47:06,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:47:06,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:47:06,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:47:06,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:47:06,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:47:06,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:47:06,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:47:06,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:47:06,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:47:06,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:47:06,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:47:06,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:47:06,929 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:47:06,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:47:06,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:47:06,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:47:06,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:47:06,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:47:06,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:47:06,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:47:06,933 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:47:06,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:47:06,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:47:06,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:47:06,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:47:06,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:47:06,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:47:06,935 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:47:06,935 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:47:06,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:47:06,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:47:06,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:47:06,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:47:06,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:47:06,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:47:06,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:47:06,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:47:06,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:47:06,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:47:06,938 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:47:06,938 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:47:06,939 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:47:06,939 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:47:06,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:47:06,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:47:06,940 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-11-20 10:47:07,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:47:07,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:47:07,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:47:07,420 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:47:07,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:47:07,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-20 10:47:10,707 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:47:11,267 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:47:11,268 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-20 10:47:11,326 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/data/885b172b6/a89a1d462ea14720bb8564302f593fa6/FLAG88adee301 [2022-11-20 10:47:11,346 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/data/885b172b6/a89a1d462ea14720bb8564302f593fa6 [2022-11-20 10:47:11,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:47:11,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:47:11,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:47:11,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:47:11,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:47:11,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:11" (1/1) ... [2022-11-20 10:47:11,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7691858f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:11, skipping insertion in model container [2022-11-20 10:47:11,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:11" (1/1) ... [2022-11-20 10:47:11,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:47:11,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:47:11,777 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-20 10:47:11,785 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-20 10:47:13,101 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,101 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,102 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,103 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,104 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,118 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,119 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,122 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,122 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,125 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,126 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,127 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,128 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,673 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 10:47:13,675 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 10:47:13,676 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 10:47:13,677 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 10:47:13,679 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 10:47:13,680 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 10:47:13,681 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 10:47:13,682 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 10:47:13,683 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 10:47:13,683 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 10:47:13,876 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 10:47:13,906 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,907 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,921 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:13,930 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,039 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,040 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,041 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,041 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,042 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,042 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,043 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,044 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,045 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,045 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,046 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,046 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,046 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,051 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,052 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,052 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,053 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,057 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,058 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,068 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,069 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,069 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:47:14,158 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:47:14,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:47:14,218 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-20 10:47:14,218 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-20 10:47:14,324 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,325 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,325 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,326 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,327 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,347 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,348 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,349 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,350 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,353 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,355 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,356 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,356 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,432 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 10:47:14,434 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 10:47:14,435 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 10:47:14,436 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 10:47:14,437 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 10:47:14,439 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 10:47:14,441 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 10:47:14,442 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 10:47:14,443 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 10:47:14,444 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 10:47:14,490 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 10:47:14,518 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,518 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,519 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,525 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,588 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,589 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,589 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,590 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,591 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,591 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,592 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,594 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,594 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,595 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,595 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,596 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,597 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,616 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,616 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,617 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,617 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,620 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,621 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,627 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,628 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,629 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:47:14,651 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:47:14,665 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-20 10:47:14,666 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_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-20 10:47:14,697 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,697 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,698 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,698 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,699 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,704 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,705 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,706 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,706 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,707 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,708 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,708 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,708 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,738 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 10:47:14,739 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 10:47:14,739 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 10:47:14,740 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 10:47:14,741 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 10:47:14,742 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 10:47:14,742 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 10:47:14,742 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 10:47:14,743 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 10:47:14,743 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 10:47:14,787 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 10:47:14,809 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,810 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,811 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,817 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,845 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,851 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,851 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,851 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,852 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,852 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,853 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,853 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,854 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,854 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,855 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,856 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,859 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,861 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,861 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,861 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,862 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,864 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,865 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,877 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,878 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,884 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 10:47:14,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:47:15,298 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:47:15,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15 WrapperNode [2022-11-20 10:47:15,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:47:15,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:47:15,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:47:15,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:47:15,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,532 INFO L138 Inliner]: procedures = 717, calls = 1886, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 907 [2022-11-20 10:47:15,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:47:15,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:47:15,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:47:15,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:47:15,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:47:15,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:47:15,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:47:15,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:47:15,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (1/1) ... [2022-11-20 10:47:15,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:47:15,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:15,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:15,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:47:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2022-11-20 10:47:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2022-11-20 10:47:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-20 10:47:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-20 10:47:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-20 10:47:15,764 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-20 10:47:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:47:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-20 10:47:15,764 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-20 10:47:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-20 10:47:15,765 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-20 10:47:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 10:47:15,766 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 10:47:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:47:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:47:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:47:15,766 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-20 10:47:15,766 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-20 10:47:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-20 10:47:15,767 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-20 10:47:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 10:47:15,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 10:47:15,767 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:47:15,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:47:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:47:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:47:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:47:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-20 10:47:15,769 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-20 10:47:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-20 10:47:15,770 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-20 10:47:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:47:15,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:47:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 10:47:15,772 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 10:47:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:47:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:47:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-20 10:47:15,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-20 10:47:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-20 10:47:15,773 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-20 10:47:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-20 10:47:15,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-20 10:47:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-20 10:47:15,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-20 10:47:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:47:15,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:47:15,774 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-20 10:47:15,774 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-20 10:47:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:47:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:47:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:47:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:47:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:47:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-20 10:47:15,777 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-20 10:47:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-20 10:47:15,777 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-20 10:47:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-20 10:47:15,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-20 10:47:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-20 10:47:15,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-20 10:47:15,779 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-20 10:47:15,779 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-20 10:47:16,269 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:47:16,272 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:47:19,260 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:47:19,271 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:47:19,271 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 10:47:19,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:19 BoogieIcfgContainer [2022-11-20 10:47:19,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:47:19,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:47:19,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:47:19,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:47:19,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:47:11" (1/3) ... [2022-11-20 10:47:19,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bab400b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:19, skipping insertion in model container [2022-11-20 10:47:19,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:15" (2/3) ... [2022-11-20 10:47:19,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bab400b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:19, skipping insertion in model container [2022-11-20 10:47:19,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:19" (3/3) ... [2022-11-20 10:47:19,285 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2022-11-20 10:47:19,307 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:47:19,308 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 10:47:19,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:47:19,380 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;@7b31b2b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:47:19,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 10:47:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 207 states have (on average 1.2608695652173914) internal successors, (261), 210 states have internal predecessors, (261), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2022-11-20 10:47:19,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 10:47:19,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:19,405 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 10:47:19,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:47:19,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:19,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1022866682, now seen corresponding path program 1 times [2022-11-20 10:47:19,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:47:19,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696714728] [2022-11-20 10:47:19,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:19,433 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 10:47:19,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:47:19,439 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:19,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:20,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:47:20,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-20 10:47:20,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:47:20,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:47:20,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696714728] [2022-11-20 10:47:20,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696714728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:20,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:20,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:47:20,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686443469] [2022-11-20 10:47:20,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:20,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:47:20,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:47:20,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:47:20,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:47:20,513 INFO L87 Difference]: Start difference. First operand has 347 states, 207 states have (on average 1.2608695652173914) internal successors, (261), 210 states have internal predecessors, (261), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:47:20,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:20,626 INFO L93 Difference]: Finished difference Result 681 states and 1052 transitions. [2022-11-20 10:47:20,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:47:20,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-11-20 10:47:20,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:47:20,642 INFO L225 Difference]: With dead ends: 681 [2022-11-20 10:47:20,643 INFO L226 Difference]: Without dead ends: 340 [2022-11-20 10:47:20,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 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 10:47:20,656 INFO L413 NwaCegarLoop]: 476 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, 476 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 10:47:20,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:47:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-20 10:47:20,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2022-11-20 10:47:20,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 202 states have (on average 1.2227722772277227) internal successors, (247), 204 states have internal predecessors, (247), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-20 10:47:20,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 471 transitions. [2022-11-20 10:47:20,777 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 471 transitions. Word has length 103 [2022-11-20 10:47:20,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:47:20,783 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 471 transitions. [2022-11-20 10:47:20,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:47:20,784 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 471 transitions. [2022-11-20 10:47:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 10:47:20,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:20,798 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 10:47:20,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:21,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:21,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:47:21,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:21,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1551260672, now seen corresponding path program 1 times [2022-11-20 10:47:21,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:47:21,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462153446] [2022-11-20 10:47:21,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:21,019 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 10:47:21,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:47:21,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:21,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:21,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:47:21,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 10:47:22,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:47:22,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:47:22,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462153446] [2022-11-20 10:47:22,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462153446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:22,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:22,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:47:22,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542787473] [2022-11-20 10:47:22,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:22,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:47:22,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:47:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:47:22,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:47:22,160 INFO L87 Difference]: Start difference. First operand 340 states and 471 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 10:47:22,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:22,562 INFO L93 Difference]: Finished difference Result 646 states and 906 transitions. [2022-11-20 10:47:22,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:47:22,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2022-11-20 10:47:22,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:47:22,573 INFO L225 Difference]: With dead ends: 646 [2022-11-20 10:47:22,573 INFO L226 Difference]: Without dead ends: 342 [2022-11-20 10:47:22,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:47:22,576 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 45 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:47:22,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1719 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:47:22,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-11-20 10:47:22,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-11-20 10:47:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 203 states have (on average 1.2216748768472907) internal successors, (248), 206 states have internal predecessors, (248), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2022-11-20 10:47:22,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 480 transitions. [2022-11-20 10:47:22,619 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 480 transitions. Word has length 103 [2022-11-20 10:47:22,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:47:22,620 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 480 transitions. [2022-11-20 10:47:22,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 10:47:22,620 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 480 transitions. [2022-11-20 10:47:22,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 10:47:22,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:22,624 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:47:22,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:22,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:22,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:47:22,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:22,846 INFO L85 PathProgramCache]: Analyzing trace with hash -51291587, now seen corresponding path program 1 times [2022-11-20 10:47:22,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:47:22,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643056835] [2022-11-20 10:47:22,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:22,849 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 10:47:22,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:47:22,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:22,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:23,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:47:23,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:23,938 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 10:47:23,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:47:23,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:47:23,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643056835] [2022-11-20 10:47:23,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643056835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:23,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:23,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:47:23,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008952883] [2022-11-20 10:47:23,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:23,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:47:23,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:47:23,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:47:23,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:47:23,941 INFO L87 Difference]: Start difference. First operand 342 states and 480 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 10:47:25,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:25,117 INFO L93 Difference]: Finished difference Result 669 states and 961 transitions. [2022-11-20 10:47:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:47:25,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 111 [2022-11-20 10:47:25,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:47:25,124 INFO L225 Difference]: With dead ends: 669 [2022-11-20 10:47:25,127 INFO L226 Difference]: Without dead ends: 363 [2022-11-20 10:47:25,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:47:25,129 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 79 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:47:25,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2571 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 10:47:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-20 10:47:25,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 361. [2022-11-20 10:47:25,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.2328767123287672) internal successors, (270), 222 states have internal predecessors, (270), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-20 10:47:25,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 517 transitions. [2022-11-20 10:47:25,164 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 517 transitions. Word has length 111 [2022-11-20 10:47:25,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:47:25,165 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 517 transitions. [2022-11-20 10:47:25,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-20 10:47:25,165 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2022-11-20 10:47:25,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-20 10:47:25,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:25,169 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:47:25,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:25,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:25,372 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:47:25,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:25,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1795067440, now seen corresponding path program 1 times [2022-11-20 10:47:25,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:47:25,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642351864] [2022-11-20 10:47:25,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:25,374 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 10:47:25,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:47:25,375 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:25,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:26,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:47:26,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 10:47:26,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:47:26,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:47:26,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642351864] [2022-11-20 10:47:26,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642351864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:26,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:26,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:47:26,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143908758] [2022-11-20 10:47:26,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:26,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:47:26,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:47:26,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:47:26,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:47:26,640 INFO L87 Difference]: Start difference. First operand 361 states and 517 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-20 10:47:27,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:27,451 INFO L93 Difference]: Finished difference Result 694 states and 1018 transitions. [2022-11-20 10:47:27,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:47:27,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 126 [2022-11-20 10:47:27,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:47:27,457 INFO L225 Difference]: With dead ends: 694 [2022-11-20 10:47:27,457 INFO L226 Difference]: Without dead ends: 369 [2022-11-20 10:47:27,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:47:27,461 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 68 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:47:27,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2108 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:47:27,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-20 10:47:27,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 361. [2022-11-20 10:47:27,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.2328767123287672) internal successors, (270), 222 states have internal predecessors, (270), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-20 10:47:27,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 517 transitions. [2022-11-20 10:47:27,497 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 517 transitions. Word has length 126 [2022-11-20 10:47:27,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:47:27,498 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 517 transitions. [2022-11-20 10:47:27,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-20 10:47:27,498 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2022-11-20 10:47:27,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-20 10:47:27,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:27,502 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 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 10:47:27,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:27,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:27,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:47:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1135568802, now seen corresponding path program 1 times [2022-11-20 10:47:27,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:47:27,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070062417] [2022-11-20 10:47:27,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:27,726 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 10:47:27,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:47:27,727 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:27,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:28,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:47:28,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-20 10:47:29,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:47:29,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:47:29,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070062417] [2022-11-20 10:47:29,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070062417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:29,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:29,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:47:29,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417573315] [2022-11-20 10:47:29,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:29,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:47:29,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:47:29,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:47:29,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:47:29,045 INFO L87 Difference]: Start difference. First operand 361 states and 517 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-20 10:47:30,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:30,392 INFO L93 Difference]: Finished difference Result 720 states and 1056 transitions. [2022-11-20 10:47:30,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:47:30,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 142 [2022-11-20 10:47:30,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:47:30,397 INFO L225 Difference]: With dead ends: 720 [2022-11-20 10:47:30,397 INFO L226 Difference]: Without dead ends: 395 [2022-11-20 10:47:30,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:47:30,400 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 117 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:47:30,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2862 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 10:47:30,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-20 10:47:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 361. [2022-11-20 10:47:30,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.2328767123287672) internal successors, (270), 222 states have internal predecessors, (270), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-20 10:47:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 517 transitions. [2022-11-20 10:47:30,427 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 517 transitions. Word has length 142 [2022-11-20 10:47:30,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:47:30,428 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 517 transitions. [2022-11-20 10:47:30,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-20 10:47:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2022-11-20 10:47:30,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-20 10:47:30,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:30,431 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:47:30,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:30,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:30,643 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:47:30,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:30,644 INFO L85 PathProgramCache]: Analyzing trace with hash 781855149, now seen corresponding path program 1 times [2022-11-20 10:47:30,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:47:30,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75981069] [2022-11-20 10:47:30,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:30,646 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 10:47:30,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:47:30,647 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:30,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:31,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 1591 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:47:31,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-20 10:47:32,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:47:32,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:47:32,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75981069] [2022-11-20 10:47:32,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75981069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:32,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:32,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:47:32,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470319125] [2022-11-20 10:47:32,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:32,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:47:32,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:47:32,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:47:32,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:47:32,450 INFO L87 Difference]: Start difference. First operand 361 states and 517 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:47:36,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:36,530 INFO L93 Difference]: Finished difference Result 722 states and 1073 transitions. [2022-11-20 10:47:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:47:36,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-11-20 10:47:36,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:47:36,536 INFO L225 Difference]: With dead ends: 722 [2022-11-20 10:47:36,536 INFO L226 Difference]: Without dead ends: 397 [2022-11-20 10:47:36,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:47:36,539 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 23 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:47:36,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2202 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-20 10:47:36,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-11-20 10:47:36,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 369. [2022-11-20 10:47:36,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 227 states have (on average 1.2334801762114538) internal successors, (280), 230 states have internal predecessors, (280), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-20 10:47:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 527 transitions. [2022-11-20 10:47:36,566 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 527 transitions. Word has length 157 [2022-11-20 10:47:36,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:47:36,566 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 527 transitions. [2022-11-20 10:47:36,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:47:36,567 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 527 transitions. [2022-11-20 10:47:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-20 10:47:36,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:36,569 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:47:36,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:36,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:36,792 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:47:36,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:36,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1974772117, now seen corresponding path program 1 times [2022-11-20 10:47:36,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:47:36,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500123799] [2022-11-20 10:47:36,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:36,794 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 10:47:36,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:47:36,795 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:36,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:38,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1589 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:47:38,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-20 10:47:38,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:47:38,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:47:38,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500123799] [2022-11-20 10:47:38,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500123799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:38,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:38,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:47:38,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799416477] [2022-11-20 10:47:38,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:38,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:47:38,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:47:38,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:47:38,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:47:38,835 INFO L87 Difference]: Start difference. First operand 369 states and 527 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:47:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:43,606 INFO L93 Difference]: Finished difference Result 732 states and 1083 transitions. [2022-11-20 10:47:43,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:47:43,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-11-20 10:47:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:47:43,611 INFO L225 Difference]: With dead ends: 732 [2022-11-20 10:47:43,612 INFO L226 Difference]: Without dead ends: 399 [2022-11-20 10:47:43,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:47:43,615 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 20 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:47:43,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2666 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 10:47:43,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-20 10:47:43,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 373. [2022-11-20 10:47:43,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2294372294372293) internal successors, (284), 234 states have internal predecessors, (284), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-20 10:47:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 531 transitions. [2022-11-20 10:47:43,641 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 531 transitions. Word has length 157 [2022-11-20 10:47:43,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:47:43,641 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 531 transitions. [2022-11-20 10:47:43,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:47:43,642 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 531 transitions. [2022-11-20 10:47:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-20 10:47:43,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:47:43,644 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:47:43,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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)] Ended with exit code 0 [2022-11-20 10:47:43,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:43,859 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:47:43,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:43,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1839114921, now seen corresponding path program 1 times [2022-11-20 10:47:43,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:47:43,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911259068] [2022-11-20 10:47:43,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:43,862 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 10:47:43,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:47:43,864 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:43,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:47:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:45,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1586 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 10:47:45,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:48,064 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ bv80 64))))))) is different from true [2022-11-20 10:47:50,359 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ bv80 64))) (_ bv0 64)))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ bv80 64))))))) is different from true [2022-11-20 10:47:50,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 31 treesize of output 19 [2022-11-20 10:47:50,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 treesize of output 13 [2022-11-20 10:47:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 4 not checked. [2022-11-20 10:47:50,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:47:53,960 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:47:53,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2022-11-20 10:47:54,028 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-20 10:47:54,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-20 10:47:54,264 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-20 10:47:54,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:47:54,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911259068] [2022-11-20 10:47:54,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911259068] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:47:54,265 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:47:54,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14 [2022-11-20 10:47:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045609658] [2022-11-20 10:47:54,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:47:54,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:47:54,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:47:54,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:47:54,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=108, Unknown=2, NotChecked=42, Total=182 [2022-11-20 10:47:54,268 INFO L87 Difference]: Start difference. First operand 373 states and 531 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-20 10:47:58,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:48:00,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:48:04,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:04,969 INFO L93 Difference]: Finished difference Result 759 states and 1130 transitions. [2022-11-20 10:48:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:48:04,971 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 157 [2022-11-20 10:48:04,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:04,975 INFO L225 Difference]: With dead ends: 759 [2022-11-20 10:48:04,975 INFO L226 Difference]: Without dead ends: 448 [2022-11-20 10:48:04,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=113, Invalid=355, Unknown=2, NotChecked=82, Total=552 [2022-11-20 10:48:04,979 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 116 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 1078 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:04,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 3330 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 590 Invalid, 2 Unknown, 1078 Unchecked, 9.4s Time] [2022-11-20 10:48:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-11-20 10:48:05,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 390. [2022-11-20 10:48:05,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 243 states have (on average 1.2181069958847737) internal successors, (296), 246 states have internal predecessors, (296), 117 states have call successors, (117), 26 states have call predecessors, (117), 28 states have return successors, (144), 117 states have call predecessors, (144), 115 states have call successors, (144) [2022-11-20 10:48:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 557 transitions. [2022-11-20 10:48:05,014 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 557 transitions. Word has length 157 [2022-11-20 10:48:05,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:05,015 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 557 transitions. [2022-11-20 10:48:05,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-20 10:48:05,015 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 557 transitions. [2022-11-20 10:48:05,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-20 10:48:05,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:05,018 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:48:05,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:05,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:05,231 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:05,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:05,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1514968390, now seen corresponding path program 1 times [2022-11-20 10:48:05,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:05,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463275670] [2022-11-20 10:48:05,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:05,234 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 10:48:05,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:05,235 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:05,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:06,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:48:06,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:06,777 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-20 10:48:06,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:06,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:06,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463275670] [2022-11-20 10:48:06,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463275670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:06,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:06,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:48:06,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066354813] [2022-11-20 10:48:06,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:06,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:48:06,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:06,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:48:06,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:48:06,780 INFO L87 Difference]: Start difference. First operand 390 states and 557 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-20 10:48:07,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:07,417 INFO L93 Difference]: Finished difference Result 704 states and 1024 transitions. [2022-11-20 10:48:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:48:07,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 159 [2022-11-20 10:48:07,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:07,422 INFO L225 Difference]: With dead ends: 704 [2022-11-20 10:48:07,422 INFO L226 Difference]: Without dead ends: 392 [2022-11-20 10:48:07,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:48:07,425 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 99 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:07,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 2499 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:48:07,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-20 10:48:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2022-11-20 10:48:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 244 states have (on average 1.2172131147540983) internal successors, (297), 248 states have internal predecessors, (297), 117 states have call successors, (117), 26 states have call predecessors, (117), 29 states have return successors, (150), 117 states have call predecessors, (150), 115 states have call successors, (150) [2022-11-20 10:48:07,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 564 transitions. [2022-11-20 10:48:07,454 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 564 transitions. Word has length 159 [2022-11-20 10:48:07,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:07,455 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 564 transitions. [2022-11-20 10:48:07,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-20 10:48:07,455 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 564 transitions. [2022-11-20 10:48:07,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 10:48:07,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:07,458 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:48:07,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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)] Forceful destruction successful, exit code 0 [2022-11-20 10:48:07,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:07,685 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:07,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:07,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1747799334, now seen corresponding path program 1 times [2022-11-20 10:48:07,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:07,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973704296] [2022-11-20 10:48:07,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:07,688 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 10:48:07,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:07,689 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:07,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:09,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:48:09,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:09,279 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-20 10:48:09,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:09,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:09,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973704296] [2022-11-20 10:48:09,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973704296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:09,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:09,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:48:09,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142084754] [2022-11-20 10:48:09,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:09,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:48:09,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:09,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:48:09,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:48:09,282 INFO L87 Difference]: Start difference. First operand 392 states and 564 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-20 10:48:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:10,664 INFO L93 Difference]: Finished difference Result 728 states and 1065 transitions. [2022-11-20 10:48:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:48:10,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 175 [2022-11-20 10:48:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:10,669 INFO L225 Difference]: With dead ends: 728 [2022-11-20 10:48:10,670 INFO L226 Difference]: Without dead ends: 414 [2022-11-20 10:48:10,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:48:10,673 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 150 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:10,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 3233 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 10:48:10,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-20 10:48:10,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 412. [2022-11-20 10:48:10,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 263 states have (on average 1.2243346007604563) internal successors, (322), 266 states have internal predecessors, (322), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (151), 119 states have call predecessors, (151), 116 states have call successors, (151) [2022-11-20 10:48:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 591 transitions. [2022-11-20 10:48:10,709 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 591 transitions. Word has length 175 [2022-11-20 10:48:10,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:10,709 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 591 transitions. [2022-11-20 10:48:10,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-20 10:48:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 591 transitions. [2022-11-20 10:48:10,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-20 10:48:10,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:10,714 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:48:10,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:10,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:10,935 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:10,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:10,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1181735422, now seen corresponding path program 1 times [2022-11-20 10:48:10,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:10,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430657273] [2022-11-20 10:48:10,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:10,938 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 10:48:10,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:10,940 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:10,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:12,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:48:12,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:13,005 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-20 10:48:13,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:13,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:13,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430657273] [2022-11-20 10:48:13,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430657273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:13,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:13,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:48:13,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054952119] [2022-11-20 10:48:13,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:13,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:48:13,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:13,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:48:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:48:13,008 INFO L87 Difference]: Start difference. First operand 412 states and 591 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-20 10:48:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:14,092 INFO L93 Difference]: Finished difference Result 754 states and 1108 transitions. [2022-11-20 10:48:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:48:14,094 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 205 [2022-11-20 10:48:14,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:14,098 INFO L225 Difference]: With dead ends: 754 [2022-11-20 10:48:14,098 INFO L226 Difference]: Without dead ends: 420 [2022-11-20 10:48:14,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:48:14,102 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 122 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:14,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 2867 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 10:48:14,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-20 10:48:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 412. [2022-11-20 10:48:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 263 states have (on average 1.2243346007604563) internal successors, (322), 266 states have internal predecessors, (322), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (151), 119 states have call predecessors, (151), 116 states have call successors, (151) [2022-11-20 10:48:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 591 transitions. [2022-11-20 10:48:14,165 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 591 transitions. Word has length 205 [2022-11-20 10:48:14,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:14,165 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 591 transitions. [2022-11-20 10:48:14,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-20 10:48:14,166 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 591 transitions. [2022-11-20 10:48:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-20 10:48:14,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:14,170 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2022-11-20 10:48:14,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:14,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:14,395 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:14,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:14,396 INFO L85 PathProgramCache]: Analyzing trace with hash -869942382, now seen corresponding path program 1 times [2022-11-20 10:48:14,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:14,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636933944] [2022-11-20 10:48:14,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:14,398 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 10:48:14,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:14,398 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:14,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:16,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1844 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:48:16,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-20 10:48:16,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:16,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:16,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636933944] [2022-11-20 10:48:16,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636933944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:16,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:16,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 10:48:16,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030010219] [2022-11-20 10:48:16,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:16,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:48:16,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:16,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:48:16,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:48:16,509 INFO L87 Difference]: Start difference. First operand 412 states and 591 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-20 10:48:18,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:18,510 INFO L93 Difference]: Finished difference Result 770 states and 1124 transitions. [2022-11-20 10:48:18,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:48:18,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 217 [2022-11-20 10:48:18,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:18,516 INFO L225 Difference]: With dead ends: 770 [2022-11-20 10:48:18,516 INFO L226 Difference]: Without dead ends: 436 [2022-11-20 10:48:18,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:48:18,520 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 171 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:18,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 3579 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 10:48:18,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-20 10:48:18,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 390. [2022-11-20 10:48:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 243 states have (on average 1.2181069958847737) internal successors, (296), 246 states have internal predecessors, (296), 117 states have call successors, (117), 26 states have call predecessors, (117), 28 states have return successors, (142), 117 states have call predecessors, (142), 115 states have call successors, (142) [2022-11-20 10:48:18,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 555 transitions. [2022-11-20 10:48:18,600 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 555 transitions. Word has length 217 [2022-11-20 10:48:18,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:18,601 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 555 transitions. [2022-11-20 10:48:18,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-20 10:48:18,601 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 555 transitions. [2022-11-20 10:48:18,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-20 10:48:18,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:18,603 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-20 10:48:18,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:18,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:18,825 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:18,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:18,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1451940861, now seen corresponding path program 1 times [2022-11-20 10:48:18,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:18,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549018234] [2022-11-20 10:48:18,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:18,829 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 10:48:18,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:18,830 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:18,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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)] Waiting until timeout for monitored process [2022-11-20 10:48:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:20,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1956 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:48:20,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-20 10:48:21,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:21,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:21,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549018234] [2022-11-20 10:48:21,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549018234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:21,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:21,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:48:21,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136892067] [2022-11-20 10:48:21,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:21,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:48:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:48:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:48:21,250 INFO L87 Difference]: Start difference. First operand 390 states and 555 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-20 10:48:22,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:22,192 INFO L93 Difference]: Finished difference Result 696 states and 1005 transitions. [2022-11-20 10:48:22,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:48:22,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 232 [2022-11-20 10:48:22,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:22,196 INFO L225 Difference]: With dead ends: 696 [2022-11-20 10:48:22,196 INFO L226 Difference]: Without dead ends: 392 [2022-11-20 10:48:22,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:48:22,199 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 129 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:22,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 3278 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 10:48:22,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-20 10:48:22,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2022-11-20 10:48:22,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 244 states have (on average 1.2172131147540983) internal successors, (297), 248 states have internal predecessors, (297), 117 states have call successors, (117), 26 states have call predecessors, (117), 29 states have return successors, (146), 117 states have call predecessors, (146), 115 states have call successors, (146) [2022-11-20 10:48:22,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 560 transitions. [2022-11-20 10:48:22,228 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 560 transitions. Word has length 232 [2022-11-20 10:48:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:22,228 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 560 transitions. [2022-11-20 10:48:22,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-20 10:48:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 560 transitions. [2022-11-20 10:48:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-20 10:48:22,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:22,231 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 10:48:22,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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)] Forceful destruction successful, exit code 0 [2022-11-20 10:48:22,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:22,447 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:22,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:22,448 INFO L85 PathProgramCache]: Analyzing trace with hash 419999514, now seen corresponding path program 1 times [2022-11-20 10:48:22,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:22,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046871050] [2022-11-20 10:48:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:22,451 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 10:48:22,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:22,453 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:22,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:24,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:48:24,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 10:48:24,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:24,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:24,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046871050] [2022-11-20 10:48:24,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046871050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:24,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:24,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:48:24,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243378804] [2022-11-20 10:48:24,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:24,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:48:24,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:24,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:48:24,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:48:24,832 INFO L87 Difference]: Start difference. First operand 392 states and 560 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 10:48:24,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:24,871 INFO L93 Difference]: Finished difference Result 517 states and 720 transitions. [2022-11-20 10:48:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:48:24,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 267 [2022-11-20 10:48:24,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:24,875 INFO L225 Difference]: With dead ends: 517 [2022-11-20 10:48:24,876 INFO L226 Difference]: Without dead ends: 393 [2022-11-20 10:48:24,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 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 10:48:24,878 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 0 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:24,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:48:24,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-20 10:48:24,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-11-20 10:48:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 245 states have (on average 1.2163265306122448) internal successors, (298), 249 states have internal predecessors, (298), 117 states have call successors, (117), 26 states have call predecessors, (117), 29 states have return successors, (146), 117 states have call predecessors, (146), 115 states have call successors, (146) [2022-11-20 10:48:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 561 transitions. [2022-11-20 10:48:24,910 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 561 transitions. Word has length 267 [2022-11-20 10:48:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:24,911 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 561 transitions. [2022-11-20 10:48:24,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 10:48:24,911 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 561 transitions. [2022-11-20 10:48:24,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-20 10:48:24,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:24,914 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-20 10:48:24,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:25,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:25,139 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:25,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:25,140 INFO L85 PathProgramCache]: Analyzing trace with hash -539719671, now seen corresponding path program 1 times [2022-11-20 10:48:25,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:25,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190943547] [2022-11-20 10:48:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:25,143 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 10:48:25,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:25,145 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:25,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:27,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:48:27,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 10:48:27,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:27,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:27,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190943547] [2022-11-20 10:48:27,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190943547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:27,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:27,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:48:27,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459499476] [2022-11-20 10:48:27,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:27,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:48:27,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:27,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:48:27,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:48:27,716 INFO L87 Difference]: Start difference. First operand 393 states and 561 transitions. Second operand has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-20 10:48:29,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:29,534 INFO L93 Difference]: Finished difference Result 721 states and 1043 transitions. [2022-11-20 10:48:29,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:48:29,535 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 248 [2022-11-20 10:48:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:29,539 INFO L225 Difference]: With dead ends: 721 [2022-11-20 10:48:29,539 INFO L226 Difference]: Without dead ends: 415 [2022-11-20 10:48:29,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:48:29,543 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 179 mSDsluCounter, 3542 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:29,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 3972 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 10:48:29,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-20 10:48:29,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2022-11-20 10:48:29,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 264 states have (on average 1.2234848484848484) internal successors, (323), 267 states have internal predecessors, (323), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (147), 119 states have call predecessors, (147), 116 states have call successors, (147) [2022-11-20 10:48:29,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 588 transitions. [2022-11-20 10:48:29,579 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 588 transitions. Word has length 248 [2022-11-20 10:48:29,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:29,581 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 588 transitions. [2022-11-20 10:48:29,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-20 10:48:29,581 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 588 transitions. [2022-11-20 10:48:29,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-20 10:48:29,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:29,584 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-20 10:48:29,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:29,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:29,799 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:29,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:29,799 INFO L85 PathProgramCache]: Analyzing trace with hash 563225069, now seen corresponding path program 1 times [2022-11-20 10:48:29,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:29,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161860780] [2022-11-20 10:48:29,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:29,801 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 10:48:29,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:29,802 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:29,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:32,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2240 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:48:32,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-20 10:48:32,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:32,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:32,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161860780] [2022-11-20 10:48:32,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161860780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:32,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:32,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 10:48:32,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386391205] [2022-11-20 10:48:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:32,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:48:32,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:32,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:48:32,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:48:32,743 INFO L87 Difference]: Start difference. First operand 413 states and 588 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 10:48:34,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:34,197 INFO L93 Difference]: Finished difference Result 747 states and 1082 transitions. [2022-11-20 10:48:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:48:34,198 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 278 [2022-11-20 10:48:34,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:34,203 INFO L225 Difference]: With dead ends: 747 [2022-11-20 10:48:34,204 INFO L226 Difference]: Without dead ends: 421 [2022-11-20 10:48:34,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:48:34,207 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 152 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:34,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 3623 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 10:48:34,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-20 10:48:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2022-11-20 10:48:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 264 states have (on average 1.2234848484848484) internal successors, (323), 267 states have internal predecessors, (323), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (147), 119 states have call predecessors, (147), 116 states have call successors, (147) [2022-11-20 10:48:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 588 transitions. [2022-11-20 10:48:34,244 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 588 transitions. Word has length 278 [2022-11-20 10:48:34,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:34,245 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 588 transitions. [2022-11-20 10:48:34,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 10:48:34,246 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 588 transitions. [2022-11-20 10:48:34,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-20 10:48:34,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:34,248 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:48:34,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:34,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:34,475 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:34,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:34,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1736794708, now seen corresponding path program 1 times [2022-11-20 10:48:34,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:34,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524722833] [2022-11-20 10:48:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:34,479 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 10:48:34,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:34,480 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:34,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:36,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 1984 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:48:36,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-20 10:48:36,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:36,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:36,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524722833] [2022-11-20 10:48:36,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524722833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:36,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:36,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:48:36,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116726050] [2022-11-20 10:48:36,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:36,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:48:36,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:36,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:48:36,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:48:36,917 INFO L87 Difference]: Start difference. First operand 413 states and 588 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-20 10:48:37,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:37,780 INFO L93 Difference]: Finished difference Result 719 states and 1031 transitions. [2022-11-20 10:48:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:48:37,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 250 [2022-11-20 10:48:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:37,786 INFO L225 Difference]: With dead ends: 719 [2022-11-20 10:48:37,786 INFO L226 Difference]: Without dead ends: 420 [2022-11-20 10:48:37,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:48:37,789 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 122 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:37,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 2864 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 10:48:37,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-20 10:48:37,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 415. [2022-11-20 10:48:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 265 states have (on average 1.2226415094339622) internal successors, (324), 269 states have internal predecessors, (324), 118 states have call successors, (118), 26 states have call predecessors, (118), 30 states have return successors, (149), 119 states have call predecessors, (149), 116 states have call successors, (149) [2022-11-20 10:48:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 591 transitions. [2022-11-20 10:48:37,825 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 591 transitions. Word has length 250 [2022-11-20 10:48:37,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:37,826 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 591 transitions. [2022-11-20 10:48:37,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-20 10:48:37,826 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 591 transitions. [2022-11-20 10:48:37,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-20 10:48:37,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:37,829 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:48:37,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:38,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:38,051 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:38,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:38,052 INFO L85 PathProgramCache]: Analyzing trace with hash 548653344, now seen corresponding path program 1 times [2022-11-20 10:48:38,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:38,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183796840] [2022-11-20 10:48:38,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:38,055 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 10:48:38,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:38,057 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:38,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (19)] Waiting until timeout for monitored process [2022-11-20 10:48:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:40,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:48:40,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-11-20 10:48:40,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:40,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:40,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183796840] [2022-11-20 10:48:40,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183796840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:40,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:40,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:48:40,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834241073] [2022-11-20 10:48:40,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:40,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:48:40,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:40,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:48:40,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:48:40,927 INFO L87 Difference]: Start difference. First operand 415 states and 591 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 10:48:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:42,256 INFO L93 Difference]: Finished difference Result 724 states and 1038 transitions. [2022-11-20 10:48:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:48:42,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 273 [2022-11-20 10:48:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:42,262 INFO L225 Difference]: With dead ends: 724 [2022-11-20 10:48:42,262 INFO L226 Difference]: Without dead ends: 423 [2022-11-20 10:48:42,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:48:42,265 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 141 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:42,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 3236 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 10:48:42,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-11-20 10:48:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 416. [2022-11-20 10:48:42,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 266 states have (on average 1.2218045112781954) internal successors, (325), 270 states have internal predecessors, (325), 118 states have call successors, (118), 26 states have call predecessors, (118), 30 states have return successors, (149), 119 states have call predecessors, (149), 116 states have call successors, (149) [2022-11-20 10:48:42,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 592 transitions. [2022-11-20 10:48:42,301 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 592 transitions. Word has length 273 [2022-11-20 10:48:42,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:42,301 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 592 transitions. [2022-11-20 10:48:42,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-20 10:48:42,302 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 592 transitions. [2022-11-20 10:48:42,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-20 10:48:42,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:42,305 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:48:42,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (19)] Forceful destruction successful, exit code 0 [2022-11-20 10:48:42,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:42,519 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:42,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:42,520 INFO L85 PathProgramCache]: Analyzing trace with hash 2044143037, now seen corresponding path program 1 times [2022-11-20 10:48:42,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:42,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759315430] [2022-11-20 10:48:42,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:42,523 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 10:48:42,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:42,524 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:42,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:45,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 2281 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:48:45,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-11-20 10:48:46,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:46,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:46,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759315430] [2022-11-20 10:48:46,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759315430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:46,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:46,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 10:48:46,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187026634] [2022-11-20 10:48:46,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:46,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:48:46,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:48:46,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:48:46,005 INFO L87 Difference]: Start difference. First operand 416 states and 592 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-20 10:48:47,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:47,329 INFO L93 Difference]: Finished difference Result 730 states and 1046 transitions. [2022-11-20 10:48:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:48:47,330 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 304 [2022-11-20 10:48:47,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:47,333 INFO L225 Difference]: With dead ends: 730 [2022-11-20 10:48:47,334 INFO L226 Difference]: Without dead ends: 433 [2022-11-20 10:48:47,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:48:47,336 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 116 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:47,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 3700 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 10:48:47,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-11-20 10:48:47,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 428. [2022-11-20 10:48:47,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 272 states have (on average 1.2205882352941178) internal successors, (332), 276 states have internal predecessors, (332), 123 states have call successors, (123), 27 states have call predecessors, (123), 31 states have return successors, (154), 124 states have call predecessors, (154), 121 states have call successors, (154) [2022-11-20 10:48:47,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 609 transitions. [2022-11-20 10:48:47,372 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 609 transitions. Word has length 304 [2022-11-20 10:48:47,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:47,373 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 609 transitions. [2022-11-20 10:48:47,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-20 10:48:47,373 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 609 transitions. [2022-11-20 10:48:47,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-20 10:48:47,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:47,376 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-20 10:48:47,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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)] Forceful destruction successful, exit code 0 [2022-11-20 10:48:47,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:47,603 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:47,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:47,604 INFO L85 PathProgramCache]: Analyzing trace with hash 369354797, now seen corresponding path program 1 times [2022-11-20 10:48:47,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:47,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867364264] [2022-11-20 10:48:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:47,606 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 10:48:47,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:47,607 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:47,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (21)] Waiting until timeout for monitored process [2022-11-20 10:48:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:50,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 10:48:50,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 10:48:50,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:50,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:50,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867364264] [2022-11-20 10:48:50,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867364264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:50,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:50,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:48:50,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739126481] [2022-11-20 10:48:50,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:50,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:48:50,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:50,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:48:50,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:48:50,716 INFO L87 Difference]: Start difference. First operand 428 states and 609 transitions. Second operand has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-20 10:48:52,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:52,832 INFO L93 Difference]: Finished difference Result 793 states and 1140 transitions. [2022-11-20 10:48:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:48:52,833 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) Word has length 310 [2022-11-20 10:48:52,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:52,837 INFO L225 Difference]: With dead ends: 793 [2022-11-20 10:48:52,837 INFO L226 Difference]: Without dead ends: 452 [2022-11-20 10:48:52,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:48:52,840 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 201 mSDsluCounter, 3865 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 4289 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:52,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 4289 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 10:48:52,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-20 10:48:52,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 406. [2022-11-20 10:48:52,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 252 states have (on average 1.2142857142857142) internal successors, (306), 256 states have internal predecessors, (306), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-20 10:48:52,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 575 transitions. [2022-11-20 10:48:52,871 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 575 transitions. Word has length 310 [2022-11-20 10:48:52,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:52,872 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 575 transitions. [2022-11-20 10:48:52,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-20 10:48:52,872 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 575 transitions. [2022-11-20 10:48:52,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-11-20 10:48:52,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:52,875 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-20 10:48:52,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (21)] Forceful destruction successful, exit code 0 [2022-11-20 10:48:53,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:53,099 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:53,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash 433494193, now seen corresponding path program 1 times [2022-11-20 10:48:53,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:53,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113464592] [2022-11-20 10:48:53,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:53,104 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 10:48:53,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:53,106 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:53,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (22)] Waiting until timeout for monitored process [2022-11-20 10:48:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:56,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:48:56,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:48:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-11-20 10:48:56,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:48:56,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:48:56,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113464592] [2022-11-20 10:48:56,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113464592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:56,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:56,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:48:56,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684080202] [2022-11-20 10:48:56,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:56,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:48:56,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:48:56,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:48:56,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:48:56,466 INFO L87 Difference]: Start difference. First operand 406 states and 575 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 10:48:56,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:56,804 INFO L93 Difference]: Finished difference Result 744 states and 1076 transitions. [2022-11-20 10:48:56,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:48:56,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 340 [2022-11-20 10:48:56,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:56,808 INFO L225 Difference]: With dead ends: 744 [2022-11-20 10:48:56,809 INFO L226 Difference]: Without dead ends: 444 [2022-11-20 10:48:56,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 335 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 10:48:56,811 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 59 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:56,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2463 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:48:56,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-20 10:48:56,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 407. [2022-11-20 10:48:56,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 253 states have (on average 1.2134387351778657) internal successors, (307), 257 states have internal predecessors, (307), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-20 10:48:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 576 transitions. [2022-11-20 10:48:56,863 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 576 transitions. Word has length 340 [2022-11-20 10:48:56,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:56,863 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 576 transitions. [2022-11-20 10:48:56,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 10:48:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 576 transitions. [2022-11-20 10:48:56,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-11-20 10:48:56,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:56,867 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:48:56,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (22)] Forceful destruction successful, exit code 0 [2022-11-20 10:48:57,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:57,091 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:57,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:57,092 INFO L85 PathProgramCache]: Analyzing trace with hash 714609585, now seen corresponding path program 1 times [2022-11-20 10:48:57,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:57,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622027362] [2022-11-20 10:48:57,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:57,094 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 10:48:57,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:57,095 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:48:57,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (23)] Waiting until timeout for monitored process [2022-11-20 10:49:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:04,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 2505 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:49:04,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:04,797 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:49:04,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 36 [2022-11-20 10:49:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-20 10:49:06,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:06,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:06,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622027362] [2022-11-20 10:49:06,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622027362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:06,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:06,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:49:06,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762598286] [2022-11-20 10:49:06,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:06,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:49:06,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:06,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:49:06,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:49:06,404 INFO L87 Difference]: Start difference. First operand 407 states and 576 transitions. Second operand has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 10:49:13,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:13,666 INFO L93 Difference]: Finished difference Result 742 states and 1064 transitions. [2022-11-20 10:49:13,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:49:13,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 334 [2022-11-20 10:49:13,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:13,673 INFO L225 Difference]: With dead ends: 742 [2022-11-20 10:49:13,673 INFO L226 Difference]: Without dead ends: 410 [2022-11-20 10:49:13,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:49:13,675 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 5 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:13,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2854 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 40 Unchecked, 5.0s Time] [2022-11-20 10:49:13,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-20 10:49:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 409. [2022-11-20 10:49:13,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 255 states have (on average 1.2117647058823529) internal successors, (309), 259 states have internal predecessors, (309), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-20 10:49:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 578 transitions. [2022-11-20 10:49:13,709 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 578 transitions. Word has length 334 [2022-11-20 10:49:13,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:13,710 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 578 transitions. [2022-11-20 10:49:13,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 10:49:13,710 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 578 transitions. [2022-11-20 10:49:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-20 10:49:13,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:13,713 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:13,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (23)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:13,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:13,935 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:13,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:13,936 INFO L85 PathProgramCache]: Analyzing trace with hash -427109524, now seen corresponding path program 1 times [2022-11-20 10:49:13,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:13,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311704532] [2022-11-20 10:49:13,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:13,938 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 10:49:13,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:13,939 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:13,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (24)] Waiting until timeout for monitored process [2022-11-20 10:49:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:15,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 2295 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:49:15,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-20 10:49:15,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:15,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:15,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311704532] [2022-11-20 10:49:15,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311704532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:15,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:15,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:49:15,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821389827] [2022-11-20 10:49:15,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:15,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:49:15,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:15,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:49:15,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:49:15,931 INFO L87 Difference]: Start difference. First operand 409 states and 578 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 10:49:16,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:16,064 INFO L93 Difference]: Finished difference Result 777 states and 1134 transitions. [2022-11-20 10:49:16,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:49:16,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 309 [2022-11-20 10:49:16,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:16,068 INFO L225 Difference]: With dead ends: 777 [2022-11-20 10:49:16,068 INFO L226 Difference]: Without dead ends: 414 [2022-11-20 10:49:16,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:49:16,071 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 7 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:16,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1388 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:49:16,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-20 10:49:16,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 410. [2022-11-20 10:49:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 256 states have (on average 1.2109375) internal successors, (310), 260 states have internal predecessors, (310), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-20 10:49:16,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 579 transitions. [2022-11-20 10:49:16,120 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 579 transitions. Word has length 309 [2022-11-20 10:49:16,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:16,121 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 579 transitions. [2022-11-20 10:49:16,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 10:49:16,121 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 579 transitions. [2022-11-20 10:49:16,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-20 10:49:16,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:16,124 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:16,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (24)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:16,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:16,339 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:16,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:16,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1011877536, now seen corresponding path program 1 times [2022-11-20 10:49:16,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:16,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748386356] [2022-11-20 10:49:16,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:16,343 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 10:49:16,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:16,346 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:16,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (25)] Waiting until timeout for monitored process [2022-11-20 10:49:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:18,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 2409 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:49:18,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:18,659 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-11-20 10:49:18,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:18,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:18,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748386356] [2022-11-20 10:49:18,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748386356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:18,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:18,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 10:49:18,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638797196] [2022-11-20 10:49:18,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:18,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:49:18,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:18,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:49:18,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:49:18,662 INFO L87 Difference]: Start difference. First operand 410 states and 579 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 10:49:19,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:19,504 INFO L93 Difference]: Finished difference Result 785 states and 1127 transitions. [2022-11-20 10:49:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:49:19,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 324 [2022-11-20 10:49:19,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:19,514 INFO L225 Difference]: With dead ends: 785 [2022-11-20 10:49:19,514 INFO L226 Difference]: Without dead ends: 424 [2022-11-20 10:49:19,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:49:19,517 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 5 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:19,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3954 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:49:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-20 10:49:19,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 417. [2022-11-20 10:49:19,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 261 states have (on average 1.206896551724138) internal successors, (315), 266 states have internal predecessors, (315), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (160), 123 states have call predecessors, (160), 120 states have call successors, (160) [2022-11-20 10:49:19,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 597 transitions. [2022-11-20 10:49:19,557 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 597 transitions. Word has length 324 [2022-11-20 10:49:19,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:19,557 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 597 transitions. [2022-11-20 10:49:19,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 10:49:19,558 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 597 transitions. [2022-11-20 10:49:19,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-20 10:49:19,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:19,565 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:49:19,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (25)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:19,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:19,766 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:19,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:19,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1848685116, now seen corresponding path program 1 times [2022-11-20 10:49:19,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:19,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000766944] [2022-11-20 10:49:19,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:19,770 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 10:49:19,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:19,771 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:19,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (26)] Waiting until timeout for monitored process [2022-11-20 10:49:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:21,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:49:21,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 296 proven. 1 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-20 10:49:21,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:49:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2022-11-20 10:49:22,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:22,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000766944] [2022-11-20 10:49:22,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000766944] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:49:22,403 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:49:22,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 10:49:22,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939449956] [2022-11-20 10:49:22,404 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:49:22,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:49:22,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:22,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:49:22,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:49:22,407 INFO L87 Difference]: Start difference. First operand 417 states and 597 transitions. Second operand has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-20 10:49:22,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:22,804 INFO L93 Difference]: Finished difference Result 806 states and 1198 transitions. [2022-11-20 10:49:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:49:22,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 312 [2022-11-20 10:49:22,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:22,809 INFO L225 Difference]: With dead ends: 806 [2022-11-20 10:49:22,809 INFO L226 Difference]: Without dead ends: 432 [2022-11-20 10:49:22,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 624 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:49:22,812 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 33 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1868 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:22,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1868 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:49:22,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-11-20 10:49:22,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 426. [2022-11-20 10:49:22,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 270 states have (on average 1.211111111111111) internal successors, (327), 275 states have internal predecessors, (327), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (160), 123 states have call predecessors, (160), 120 states have call successors, (160) [2022-11-20 10:49:22,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 609 transitions. [2022-11-20 10:49:22,857 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 609 transitions. Word has length 312 [2022-11-20 10:49:22,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:22,857 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 609 transitions. [2022-11-20 10:49:22,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-20 10:49:22,858 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 609 transitions. [2022-11-20 10:49:22,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-20 10:49:22,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:22,861 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 10:49:22,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (26)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:23,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:23,075 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:23,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1031369426, now seen corresponding path program 1 times [2022-11-20 10:49:23,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:23,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748821685] [2022-11-20 10:49:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:23,080 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 10:49:23,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:23,081 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:23,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (27)] Waiting until timeout for monitored process [2022-11-20 10:49:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:31,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 2539 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 10:49:31,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:32,642 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:49:32,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 65 treesize of output 17 [2022-11-20 10:49:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2022-11-20 10:49:32,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:32,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:32,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748821685] [2022-11-20 10:49:32,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748821685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:32,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:32,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 10:49:32,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001673743] [2022-11-20 10:49:32,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:32,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:49:32,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:32,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:49:32,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:49:32,814 INFO L87 Difference]: Start difference. First operand 426 states and 609 transitions. Second operand has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-20 10:49:40,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:40,663 INFO L93 Difference]: Finished difference Result 876 states and 1327 transitions. [2022-11-20 10:49:40,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:49:40,666 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 348 [2022-11-20 10:49:40,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:40,670 INFO L225 Difference]: With dead ends: 876 [2022-11-20 10:49:40,670 INFO L226 Difference]: Without dead ends: 486 [2022-11-20 10:49:40,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:49:40,673 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 115 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:40,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 4495 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-20 10:49:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-11-20 10:49:40,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 437. [2022-11-20 10:49:40,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 280 states have (on average 1.2107142857142856) internal successors, (339), 284 states have internal predecessors, (339), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-20 10:49:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 634 transitions. [2022-11-20 10:49:40,715 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 634 transitions. Word has length 348 [2022-11-20 10:49:40,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:40,715 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 634 transitions. [2022-11-20 10:49:40,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-20 10:49:40,716 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 634 transitions. [2022-11-20 10:49:40,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-20 10:49:40,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:40,719 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 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 10:49:40,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (27)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:40,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:40,934 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:40,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:40,935 INFO L85 PathProgramCache]: Analyzing trace with hash -330607892, now seen corresponding path program 1 times [2022-11-20 10:49:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:40,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282226557] [2022-11-20 10:49:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:40,937 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 10:49:40,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:40,938 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:40,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (28)] Waiting until timeout for monitored process [2022-11-20 10:49:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:43,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 2535 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:49:43,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:43,203 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-11-20 10:49:43,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:43,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:43,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282226557] [2022-11-20 10:49:43,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282226557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:43,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:43,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:49:43,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44317921] [2022-11-20 10:49:43,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:43,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:49:43,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:43,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:49:43,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:49:43,206 INFO L87 Difference]: Start difference. First operand 437 states and 634 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 10:49:43,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:43,332 INFO L93 Difference]: Finished difference Result 858 states and 1281 transitions. [2022-11-20 10:49:43,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:49:43,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 348 [2022-11-20 10:49:43,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:43,336 INFO L225 Difference]: With dead ends: 858 [2022-11-20 10:49:43,337 INFO L226 Difference]: Without dead ends: 462 [2022-11-20 10:49:43,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:49:43,340 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 8 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:43,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1932 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:49:43,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-11-20 10:49:43,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 445. [2022-11-20 10:49:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.2048611111111112) internal successors, (347), 292 states have internal predecessors, (347), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-20 10:49:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 642 transitions. [2022-11-20 10:49:43,378 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 642 transitions. Word has length 348 [2022-11-20 10:49:43,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:43,378 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 642 transitions. [2022-11-20 10:49:43,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 10:49:43,379 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 642 transitions. [2022-11-20 10:49:43,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-20 10:49:43,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:43,382 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 10:49:43,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (28)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:43,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:43,607 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:43,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash 55827308, now seen corresponding path program 1 times [2022-11-20 10:49:43,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:43,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557628951] [2022-11-20 10:49:43,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:43,610 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 10:49:43,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:43,611 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:43,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (29)] Waiting until timeout for monitored process [2022-11-20 10:49:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:45,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 2309 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:49:45,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-11-20 10:49:45,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:45,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:45,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557628951] [2022-11-20 10:49:45,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557628951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:45,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:45,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:49:45,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034905739] [2022-11-20 10:49:45,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:45,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:49:45,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:45,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:49:45,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:49:45,650 INFO L87 Difference]: Start difference. First operand 445 states and 642 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 10:49:45,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:45,758 INFO L93 Difference]: Finished difference Result 854 states and 1297 transitions. [2022-11-20 10:49:45,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:49:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 318 [2022-11-20 10:49:45,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:45,764 INFO L225 Difference]: With dead ends: 854 [2022-11-20 10:49:45,765 INFO L226 Difference]: Without dead ends: 445 [2022-11-20 10:49:45,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:49:45,768 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 7 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:45,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1405 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:49:45,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-20 10:49:45,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-11-20 10:49:45,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.2013888888888888) internal successors, (346), 292 states have internal predecessors, (346), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-20 10:49:45,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 641 transitions. [2022-11-20 10:49:45,806 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 641 transitions. Word has length 318 [2022-11-20 10:49:45,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:45,806 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 641 transitions. [2022-11-20 10:49:45,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 10:49:45,806 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 641 transitions. [2022-11-20 10:49:45,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-20 10:49:45,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:45,810 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 10:49:45,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (29)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:46,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:46,031 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:46,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:46,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1071932378, now seen corresponding path program 1 times [2022-11-20 10:49:46,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:46,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761830282] [2022-11-20 10:49:46,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:46,034 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 10:49:46,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:46,035 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:46,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (30)] Waiting until timeout for monitored process [2022-11-20 10:49:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:48,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 2542 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:49:48,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:48,643 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2022-11-20 10:49:48,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:48,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:48,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761830282] [2022-11-20 10:49:48,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761830282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:48,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:48,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:49:48,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20819163] [2022-11-20 10:49:48,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:48,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:49:48,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:48,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:49:48,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:49:48,646 INFO L87 Difference]: Start difference. First operand 445 states and 641 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 10:49:51,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:51,334 INFO L93 Difference]: Finished difference Result 854 states and 1295 transitions. [2022-11-20 10:49:51,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:49:51,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 354 [2022-11-20 10:49:51,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:51,340 INFO L225 Difference]: With dead ends: 854 [2022-11-20 10:49:51,340 INFO L226 Difference]: Without dead ends: 445 [2022-11-20 10:49:51,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:49:51,343 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 10 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:51,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1804 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 10:49:51,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-20 10:49:51,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-11-20 10:49:51,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.1979166666666667) internal successors, (345), 292 states have internal predecessors, (345), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-20 10:49:51,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 640 transitions. [2022-11-20 10:49:51,380 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 640 transitions. Word has length 354 [2022-11-20 10:49:51,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:51,380 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 640 transitions. [2022-11-20 10:49:51,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 10:49:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 640 transitions. [2022-11-20 10:49:51,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-20 10:49:51,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:51,384 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 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 10:49:51,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (30)] Ended with exit code 0 [2022-11-20 10:49:51,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:51,603 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:51,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1045879217, now seen corresponding path program 1 times [2022-11-20 10:49:51,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:51,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644420592] [2022-11-20 10:49:51,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:49:51,606 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 10:49:51,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:51,607 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:51,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (31)] Waiting until timeout for monitored process [2022-11-20 10:49:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:49:54,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 10:49:54,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:49:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-11-20 10:49:54,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:49:54,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:49:54,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644420592] [2022-11-20 10:49:54,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644420592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:49:54,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:49:54,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:49:54,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102016289] [2022-11-20 10:49:54,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:49:54,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:49:54,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:49:54,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:49:54,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:49:54,901 INFO L87 Difference]: Start difference. First operand 445 states and 640 transitions. Second operand has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-20 10:49:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:49:56,920 INFO L93 Difference]: Finished difference Result 806 states and 1166 transitions. [2022-11-20 10:49:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:49:56,923 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) Word has length 337 [2022-11-20 10:49:56,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:49:56,952 INFO L225 Difference]: With dead ends: 806 [2022-11-20 10:49:56,952 INFO L226 Difference]: Without dead ends: 478 [2022-11-20 10:49:56,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:49:56,955 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 191 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:49:56,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 3897 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 10:49:56,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-11-20 10:49:56,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 468. [2022-11-20 10:49:56,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 310 states have (on average 1.2) internal successors, (372), 313 states have internal predecessors, (372), 123 states have call successors, (123), 27 states have call predecessors, (123), 33 states have return successors, (175), 127 states have call predecessors, (175), 121 states have call successors, (175) [2022-11-20 10:49:56,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 670 transitions. [2022-11-20 10:49:56,994 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 670 transitions. Word has length 337 [2022-11-20 10:49:56,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:49:56,995 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 670 transitions. [2022-11-20 10:49:56,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-20 10:49:56,995 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 670 transitions. [2022-11-20 10:49:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-11-20 10:49:56,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:49:56,998 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 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 10:49:57,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (31)] Forceful destruction successful, exit code 0 [2022-11-20 10:49:57,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:57,211 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:49:57,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:49:57,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1834816469, now seen corresponding path program 2 times [2022-11-20 10:49:57,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:49:57,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667059589] [2022-11-20 10:49:57,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:49:57,214 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 10:49:57,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:49:57,215 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:49:57,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (32)] Waiting until timeout for monitored process [2022-11-20 10:50:01,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:50:01,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:50:01,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 2439 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:50:01,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 360 proven. 3 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2022-11-20 10:50:01,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:50:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-11-20 10:50:02,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:50:02,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667059589] [2022-11-20 10:50:02,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667059589] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:50:02,732 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:50:02,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-11-20 10:50:02,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922036511] [2022-11-20 10:50:02,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:50:02,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 10:50:02,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:50:02,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 10:50:02,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:50:02,734 INFO L87 Difference]: Start difference. First operand 468 states and 670 transitions. Second operand has 16 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 11 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (50), 7 states have call predecessors, (50), 11 states have call successors, (50) [2022-11-20 10:50:04,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:04,270 INFO L93 Difference]: Finished difference Result 850 states and 1221 transitions. [2022-11-20 10:50:04,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:50:04,271 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 11 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (50), 7 states have call predecessors, (50), 11 states have call successors, (50) Word has length 339 [2022-11-20 10:50:04,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:04,275 INFO L225 Difference]: With dead ends: 850 [2022-11-20 10:50:04,275 INFO L226 Difference]: Without dead ends: 499 [2022-11-20 10:50:04,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 664 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:50:04,284 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 297 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 3177 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:04,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 3177 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 10:50:04,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-11-20 10:50:04,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 442. [2022-11-20 10:50:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 286 states have (on average 1.1993006993006994) internal successors, (343), 289 states have internal predecessors, (343), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (169), 125 states have call predecessors, (169), 120 states have call successors, (169) [2022-11-20 10:50:04,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 634 transitions. [2022-11-20 10:50:04,333 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 634 transitions. Word has length 339 [2022-11-20 10:50:04,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:04,334 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 634 transitions. [2022-11-20 10:50:04,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 11 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (50), 7 states have call predecessors, (50), 11 states have call successors, (50) [2022-11-20 10:50:04,334 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 634 transitions. [2022-11-20 10:50:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-20 10:50:04,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:04,338 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 10:50:04,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (32)] Forceful destruction successful, exit code 0 [2022-11-20 10:50:04,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:50:04,559 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:04,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:04,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1906927256, now seen corresponding path program 1 times [2022-11-20 10:50:04,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:50:04,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66532775] [2022-11-20 10:50:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:04,563 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 10:50:04,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:50:04,565 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:50:04,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (33)] Waiting until timeout for monitored process [2022-11-20 10:50:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:11,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-20 10:50:11,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:50:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 330 proven. 3 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-11-20 10:50:12,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:50:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2022-11-20 10:50:14,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:50:14,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66532775] [2022-11-20 10:50:14,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66532775] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:50:14,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:50:14,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 20 [2022-11-20 10:50:14,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414640533] [2022-11-20 10:50:14,101 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:50:14,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 10:50:14,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:50:14,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 10:50:14,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:50:14,103 INFO L87 Difference]: Start difference. First operand 442 states and 634 transitions. Second operand has 20 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 12 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) [2022-11-20 10:50:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:50:22,014 INFO L93 Difference]: Finished difference Result 765 states and 1106 transitions. [2022-11-20 10:50:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:50:22,017 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 12 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) Word has length 354 [2022-11-20 10:50:22,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:50:22,020 INFO L225 Difference]: With dead ends: 765 [2022-11-20 10:50:22,020 INFO L226 Difference]: Without dead ends: 447 [2022-11-20 10:50:22,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2022-11-20 10:50:22,024 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 171 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 4411 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 147 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:50:22,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 4411 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 933 Invalid, 0 Unknown, 147 Unchecked, 7.1s Time] [2022-11-20 10:50:22,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-20 10:50:22,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 442. [2022-11-20 10:50:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 286 states have (on average 1.1958041958041958) internal successors, (342), 289 states have internal predecessors, (342), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (169), 125 states have call predecessors, (169), 120 states have call successors, (169) [2022-11-20 10:50:22,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 633 transitions. [2022-11-20 10:50:22,097 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 633 transitions. Word has length 354 [2022-11-20 10:50:22,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:50:22,097 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 633 transitions. [2022-11-20 10:50:22,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 12 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) [2022-11-20 10:50:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 633 transitions. [2022-11-20 10:50:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-20 10:50:22,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:50:22,101 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 10:50:22,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (33)] Forceful destruction successful, exit code 0 [2022-11-20 10:50:22,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:50:22,315 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:50:22,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:22,316 INFO L85 PathProgramCache]: Analyzing trace with hash -646010006, now seen corresponding path program 1 times [2022-11-20 10:50:22,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:50:22,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70066073] [2022-11-20 10:50:22,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:22,318 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 10:50:22,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:50:22,319 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 10:50:22,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cdf7685-c58c-4e98-9fd3-df207b6cda3e/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 (34)] Waiting until timeout for monitored process [2022-11-20 10:53:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:39,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 306 conjunts are in the unsatisfiable core [2022-11-20 10:53:39,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:39,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2022-11-20 10:53:40,361 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:53:40,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 66 treesize of output 18 [2022-11-20 10:53:40,375 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:53:40,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 65 treesize of output 17 [2022-11-20 10:53:40,747 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_417| (_ BitVec 64)) (v_ArrVal_5701 (_ BitVec 1))) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_417| v_ArrVal_5701)) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_417|)))) is different from true [2022-11-20 10:53:40,871 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 6 treesize of output 5 [2022-11-20 10:54:08,162 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5705 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_418| (_ BitVec 64))) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_418|) (_ bv0 1)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_418| v_ArrVal_5705)))) is different from true [2022-11-20 10:54:10,417 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5705 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_418| (_ BitVec 64))) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_418|) (_ bv0 1)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_418| v_ArrVal_5705)))) (exists ((v_ArrVal_5706 (Array (_ BitVec 64) (_ BitVec 8)))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5706)))) is different from true [2022-11-20 10:54:21,217 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 6 treesize of output 5 [2022-11-20 10:54:24,944 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:54:24,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 207 treesize of output 63 [2022-11-20 10:55:05,263 INFO L321 Elim1Store]: treesize reduction 240, result has 23.3 percent of original size [2022-11-20 10:55:05,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 7103 treesize of output 7075 [2022-11-20 10:55:20,123 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_419| (_ BitVec 64)) (v_ArrVal_5709 (_ BitVec 1))) (and (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_419|)) (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_419| v_ArrVal_5709) |c_#valid|))) is different from true [2022-11-20 10:55:22,355 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5705 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_418| (_ BitVec 64))) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_418|) (_ bv0 1)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_418| v_ArrVal_5705)))) (exists ((v_ArrVal_5710 (Array (_ BitVec 64) (_ BitVec 8)))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5710)))) is different from true [2022-11-20 10:55:26,974 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5705 (_ BitVec 1)) (|v_aws_array_list_is_valid_~#required_size~0.base_129| (_ BitVec 64)) (|v___CPROVER_overflow_mult_~#c~1.base_418| (_ BitVec 64)) (v_ArrVal_5711 (_ BitVec 1)) (v_ArrVal_5710 (Array (_ BitVec 64) (_ BitVec 8))) (v_ArrVal_5708 (_ BitVec 1))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_129| v_ArrVal_5708))) (and (= |c_#memory_int| (store |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_129| v_ArrVal_5710)) (= (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_418|) (_ bv0 1)) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_129|) (_ bv0 1)) (= |c_#valid| (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_418| v_ArrVal_5705) |v_aws_array_list_is_valid_~#required_size~0.base_129| v_ArrVal_5711))))) is different from true [2022-11-20 10:55:50,761 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5713 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_420| (_ BitVec 64))) (and (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_420| v_ArrVal_5713) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_420|)))) is different from true [2022-11-20 10:55:55,581 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5713 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_420| (_ BitVec 64))) (and (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_420| v_ArrVal_5713) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_420|)))) (exists ((v_ArrVal_5721 (_ BitVec 8)) (v_ArrVal_5720 (_ BitVec 8)) (v_ArrVal_5714 (_ BitVec 8)) (v_ArrVal_5722 (_ BitVec 8)) (v_ArrVal_5718 (_ BitVec 8)) (v_ArrVal_5716 (_ BitVec 8)) (v_ArrVal_5715 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (store (store (store (store (store (store (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| ((_ extract 7 0) (bvmul |c_aws_mul_size_checked_#in~b#1| |c_aws_mul_size_checked_#in~a#1|))) (bvadd (_ bv1 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5716) (bvadd (_ bv2 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5715) (bvadd (_ bv3 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5722) (bvadd (_ bv4 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5721) (bvadd |c_aws_mul_size_checked_#in~r#1.offset| (_ bv5 64)) v_ArrVal_5720) (bvadd (_ bv6 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5718) (bvadd (_ bv7 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5714))))) is different from true [2022-11-20 10:56:55,223 WARN L233 SmtUtils]: Spent 6.96s on a formula simplification that was a NOOP. DAG size: 252 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 10:57:36,828 WARN L233 SmtUtils]: Spent 13.09s on a formula simplification. DAG size of input: 241 DAG size of output: 238 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 10:57:57,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:57,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:57,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:57,855 INFO L321 Elim1Store]: treesize reduction 286, result has 6.2 percent of original size [2022-11-20 10:57:57,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 411 treesize of output 378 [2022-11-20 10:57:58,382 INFO L217 Elim1Store]: Index analysis took 450 ms [2022-11-20 10:57:58,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 170 treesize of output 198 [2022-11-20 10:58:01,852 INFO L217 Elim1Store]: Index analysis took 2235 ms [2022-11-20 10:58:08,379 WARN L233 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 113 DAG size of output: 51 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-20 10:58:08,381 INFO L321 Elim1Store]: treesize reduction 232, result has 25.9 percent of original size [2022-11-20 10:58:08,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 53898 treesize of output 53444 [2022-11-20 10:58:18,109 INFO L217 Elim1Store]: Index analysis took 255 ms [2022-11-20 10:58:18,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 212 treesize of output 240 [2022-11-20 10:58:19,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:58:19,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 765 treesize of output 706 [2022-11-20 10:58:19,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 194 [2022-11-20 10:58:56,807 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5724 (Array (_ BitVec 64) (_ BitVec 8)))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5724))) is different from true [2022-11-20 10:59:14,447 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5732 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5732) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_5728 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5728) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_5731 (_ BitVec 8)) (v_ArrVal_5730 (_ BitVec 8)) (v_ArrVal_5734 (_ BitVec 8)) (v_ArrVal_5733 (_ BitVec 8)) (v_ArrVal_5729 (_ BitVec 8)) (v_ArrVal_5727 (_ BitVec 8)) (v_ArrVal_5726 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (store (store (store (store (store (store (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| ((_ extract 7 0) (bvmul |c_aws_mul_size_checked_#in~b#1| |c_aws_mul_size_checked_#in~a#1|))) (bvadd (_ bv1 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5734) (bvadd (_ bv2 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5726) (bvadd (_ bv3 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5729) (bvadd (_ bv4 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5727) (bvadd |c_aws_mul_size_checked_#in~r#1.offset| (_ bv5 64)) v_ArrVal_5733) (bvadd (_ bv6 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5731) (bvadd (_ bv7 64) |c_aws_mul_size_checked_#in~r#1.offset|) v_ArrVal_5730)) |c_#memory_int|))) is different from true [2022-11-20 10:59:14,636 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64)) (v_ArrVal_5732 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_5731 (_ BitVec 8)) (v_ArrVal_5730 (_ BitVec 8)) (v_ArrVal_5734 (_ BitVec 8)) (v_ArrVal_5733 (_ BitVec 8)) (v_ArrVal_5729 (_ BitVec 8)) (v_ArrVal_5728 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_5727 (_ BitVec 8)) (v_ArrVal_5726 (_ BitVec 8))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5728)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| (store (store (store (store (store (store (store (store (select |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base|) (_ bv0 64) ((_ extract 7 0) (let ((.cse0 (select |c_old(#memory_int)| |c_aws_array_list_is_valid_#in~list.base|))) (bvmul (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv23 64))) (select .cse0 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv22 64)))) (select .cse0 (bvadd (_ bv21 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd (_ bv20 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd (_ bv19 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd (_ bv18 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd (_ bv17 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv16 64)))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd (_ bv31 64) |c_aws_array_list_is_valid_#in~list.offset|)) (select .cse0 (bvadd |c_aws_array_list_is_valid_#in~list.offset| (_ bv30 64)))) (select .cse0 (bvadd (_ bv29 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd (_ bv28 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd (_ bv27 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd (_ bv26 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd (_ bv25 64) |c_aws_array_list_is_valid_#in~list.offset|))) (select .cse0 (bvadd (_ bv24 64) |c_aws_array_list_is_valid_#in~list.offset|))))))) (_ bv1 64) v_ArrVal_5734) (_ bv2 64) v_ArrVal_5726) (_ bv3 64) v_ArrVal_5729) (_ bv4 64) v_ArrVal_5727) (_ bv5 64) v_ArrVal_5733) (_ bv6 64) v_ArrVal_5731) (_ bv7 64) v_ArrVal_5730))) (= (store |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5732) |c_#memory_$Pointer$.base|))) is different from true [2022-11-20 10:59:15,602 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 10:59:15,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-20 10:59:15,971 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 10:59:15,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-20 10:59:16,005 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 7 treesize of output 3 [2022-11-20 10:59:16,098 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 7 treesize of output 3 [2022-11-20 10:59:17,396 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv71 64))) (.cse3 (bvadd (_ bv70 64) |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse4 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv69 64))) (.cse5 (bvadd (_ bv68 64) |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse6 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv67 64))) (.cse7 (bvadd (_ bv66 64) |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse8 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv65 64))) (.cse9 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv64 64))) (.cse10 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv79 64))) (.cse11 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv78 64))) (.cse12 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv77 64))) (.cse13 (bvadd (_ bv76 64) |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse14 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv75 64))) (.cse15 (bvadd (_ bv74 64) |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse16 (bvadd (_ bv73 64) |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse17 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv72 64)))) (let ((.cse19 (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_132| (_ BitVec 64))) (and (exists ((v_ArrVal_5724 (Array (_ BitVec 64) (_ BitVec 8))) (v_ArrVal_5731 (_ BitVec 8)) (v_ArrVal_5730 (_ BitVec 8)) (v_ArrVal_5734 (_ BitVec 8)) (v_ArrVal_5733 (_ BitVec 8)) (v_ArrVal_5729 (_ BitVec 8)) (v_ArrVal_5727 (_ BitVec 8)) (v_ArrVal_5726 (_ BitVec 8))) (= |c_#memory_int| (let ((.cse20 (store |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_132| v_ArrVal_5724))) (store .cse20 |c_aws_priority_queue_is_valid_#in~queue#1.base| (store (store (store (store (store (store (store (let ((.cse21 (select .cse20 |c_aws_priority_queue_is_valid_#in~queue#1.base|))) (store .cse21 (_ bv0 64) ((_ extract 7 0) (bvmul (concat (concat (concat (concat (concat (concat (concat (select .cse21 .cse2) (select .cse21 .cse3)) (select .cse21 .cse4)) (select .cse21 .cse5)) (select .cse21 .cse6)) (select .cse21 .cse7)) (select .cse21 .cse8)) (select .cse21 .cse9)) (concat (concat (concat (concat (concat (concat (concat (select .cse21 .cse10) (select .cse21 .cse11)) (select .cse21 .cse12)) (select .cse21 .cse13)) (select .cse21 .cse14)) (select .cse21 .cse15)) (select .cse21 .cse16)) (select .cse21 .cse17)))))) (_ bv1 64) v_ArrVal_5734) (_ bv2 64) v_ArrVal_5726) (_ bv3 64) v_ArrVal_5729) (_ bv4 64) v_ArrVal_5727) (_ bv5 64) v_ArrVal_5733) (_ bv6 64) v_ArrVal_5731) (_ bv7 64) v_ArrVal_5730))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_132|) (_ bv0 1)))))) (or (let ((.cse18 (bvadd |c_aws_priority_queue_is_valid_#in~queue#1.offset| (_ bv40 64)))) (and (or (and (exists ((v_ArrVal_5724 (Array (_ BitVec 64) (_ BitVec 8))) (|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64)) (v_ArrVal_5731 (_ BitVec 8)) (v_ArrVal_5730 (_ BitVec 8)) (|v_aws_array_list_is_valid_~#required_size~0.base_132| (_ BitVec 64)) (v_ArrVal_5734 (_ BitVec 8)) (v_ArrVal_5733 (_ BitVec 8)) (v_ArrVal_5729 (_ BitVec 8)) (v_ArrVal_5727 (_ BitVec 8)) (v_ArrVal_5726 (_ BitVec 8))) (and (= |c_#memory_int| (let ((.cse0 (store |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_132| v_ArrVal_5724))) (store .cse0 |aws_array_list_is_valid_~#required_size~0.base| (store (store (store (store (store (store (store (store (select .cse0 |aws_array_list_is_valid_~#required_size~0.base|) (_ bv0 64) ((_ extract 7 0) (let ((.cse1 (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|))) (bvmul (concat (concat (concat (concat (concat (concat (concat (select .cse1 .cse2) (select .cse1 .cse3)) (select .cse1 .cse4)) (select .cse1 .cse5)) (select .cse1 .cse6)) (select .cse1 .cse7)) (select .cse1 .cse8)) (select .cse1 .cse9)) (concat (concat (concat (concat (concat (concat (concat (select .cse1 .cse10) (select .cse1 .cse11)) (select .cse1 .cse12)) (select .cse1 .cse13)) (select .cse1 .cse14)) (select .cse1 .cse15)) (select .cse1 .cse16)) (select .cse1 .cse17)))))) (_ bv1 64) v_ArrVal_5734) (_ bv2 64) v_ArrVal_5726) (_ bv3 64) v_ArrVal_5729) (_ bv4 64) v_ArrVal_5727) (_ bv5 64) v_ArrVal_5733) (_ bv6 64) v_ArrVal_5731) (_ bv7 64) v_ArrVal_5730)))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_132|) (_ bv0 1)))) (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse18))) .cse19) (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse18)))) .cse19))) is different from true