./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_remove_harness_negated.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_remove_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 92ad6b662f02418ebaf958a5d76b8b40c1669b4ab9a0ab643b0fe8bf2b83d3a1 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 09:01:52,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 09:01:52,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 09:01:52,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 09:01:52,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 09:01:52,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 09:01:52,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 09:01:52,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 09:01:52,839 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 09:01:52,843 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 09:01:52,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 09:01:52,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 09:01:52,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 09:01:52,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 09:01:52,845 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 09:01:52,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 09:01:52,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 09:01:52,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 09:01:52,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 09:01:52,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 09:01:52,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 09:01:52,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 09:01:52,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 09:01:52,848 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 09:01:52,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 09:01:52,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 09:01:52,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 09:01:52,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 09:01:52,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:01:52,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 09:01:52,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 09:01:52,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 09:01:52,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 09:01:52,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 09:01:52,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 09:01:52,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 09:01:52,852 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 09:01:52,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 09:01:52,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 09:01:52,852 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92ad6b662f02418ebaf958a5d76b8b40c1669b4ab9a0ab643b0fe8bf2b83d3a1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 09:01:53,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 09:01:53,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 09:01:53,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 09:01:53,078 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 09:01:53,078 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 09:01:53,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_remove_harness_negated.i [2023-11-23 09:01:54,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 09:01:54,554 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 09:01:54,555 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_remove_harness_negated.i [2023-11-23 09:01:54,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16d05badb/47d08f56f2fb4f3892a4a00efd06d3b2/FLAG01b3c226f [2023-11-23 09:01:54,606 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16d05badb/47d08f56f2fb4f3892a4a00efd06d3b2 [2023-11-23 09:01:54,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 09:01:54,611 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 09:01:54,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 09:01:54,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 09:01:54,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 09:01:54,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:01:54" (1/1) ... [2023-11-23 09:01:54,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c95940e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:54, skipping insertion in model container [2023-11-23 09:01:54,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:01:54" (1/1) ... [2023-11-23 09:01:54,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 09:01:54,939 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_remove_harness_negated.i[4499,4512] [2023-11-23 09:01:54,947 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_remove_harness_negated.i[4559,4572] [2023-11-23 09:01:55,483 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,485 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,492 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,492 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,493 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,494 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,495 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,495 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,496 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,496 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,718 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:01:55,719 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:01:55,720 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:01:55,721 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:01:55,722 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:01:55,722 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:01:55,723 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:01:55,723 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:01:55,724 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:01:55,724 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:01:55,829 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,834 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,881 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,882 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,882 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,882 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,883 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,883 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,887 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,887 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,888 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,888 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,888 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,888 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,889 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,891 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,897 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,897 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,897 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,900 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,906 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,911 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,917 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,917 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,925 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,937 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,938 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:55,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:01:55,973 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 09:01:55,990 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_remove_harness_negated.i[4499,4512] [2023-11-23 09:01:55,991 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_remove_harness_negated.i[4559,4572] [2023-11-23 09:01:56,016 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,055 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,055 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,055 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,056 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,060 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,061 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,061 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,061 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,062 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,063 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,065 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,065 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,098 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:01:56,098 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:01:56,099 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:01:56,099 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:01:56,100 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:01:56,100 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:01:56,101 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:01:56,102 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:01:56,102 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:01:56,102 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:01:56,127 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,133 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2023-11-23 09:01:56,158 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,161 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,161 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,161 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,166 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,166 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,180 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,186 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,186 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,187 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:01:56,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:01:56,320 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,332 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,332 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,332 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,332 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,332 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,333 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,333 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,333 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,333 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,333 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,333 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,333 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,333 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,333 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:01:56,339 INFO L206 MainTranslator]: Completed translation [2023-11-23 09:01:56,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56 WrapperNode [2023-11-23 09:01:56,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 09:01:56,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 09:01:56,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 09:01:56,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 09:01:56,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,559 INFO L138 Inliner]: procedures = 696, calls = 1922, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1063 [2023-11-23 09:01:56,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 09:01:56,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 09:01:56,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 09:01:56,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 09:01:56,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 09:01:56,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 09:01:56,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 09:01:56,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 09:01:56,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (1/1) ... [2023-11-23 09:01:56,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:01:56,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:01:56,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 09:01:56,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 09:01:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 09:01:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 09:01:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 09:01:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 09:01:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 09:01:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 09:01:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 09:01:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 09:01:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 09:01:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 09:01:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2023-11-23 09:01:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 09:01:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 09:01:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 09:01:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 09:01:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 09:01:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 09:01:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 09:01:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 09:01:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 09:01:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 09:01:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 09:01:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 09:01:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-23 09:01:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 09:01:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 09:01:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 09:01:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 09:01:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 09:01:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 09:01:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:01:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:01:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 09:01:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 09:01:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 09:01:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 09:01:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 09:01:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2023-11-23 09:01:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2023-11-23 09:01:57,159 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 09:01:57,161 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 09:01:58,561 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 09:01:58,676 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 09:01:58,677 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-23 09:01:58,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:01:58 BoogieIcfgContainer [2023-11-23 09:01:58,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 09:01:58,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 09:01:58,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 09:01:58,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 09:01:58,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:01:54" (1/3) ... [2023-11-23 09:01:58,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5b38d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:01:58, skipping insertion in model container [2023-11-23 09:01:58,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:56" (2/3) ... [2023-11-23 09:01:58,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5b38d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:01:58, skipping insertion in model container [2023-11-23 09:01:58,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:01:58" (3/3) ... [2023-11-23 09:01:58,685 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness_negated.i [2023-11-23 09:01:58,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 09:01:58,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 09:01:58,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 09:01:58,761 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=LoopHeads, 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;@39621d37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 09:01:58,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 09:01:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 423 states, 233 states have (on average 1.296137339055794) internal successors, (302), 238 states have internal predecessors, (302), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2023-11-23 09:01:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-23 09:01:58,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:01:58,791 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-23 09:01:58,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:01:58,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:01:58,798 INFO L85 PathProgramCache]: Analyzing trace with hash -617803940, now seen corresponding path program 1 times [2023-11-23 09:01:58,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:01:58,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532745342] [2023-11-23 09:01:58,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:01:58,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:01:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:01:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:01:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:01:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:01:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:01:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:01:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:01:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:01:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:01:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:01:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:01:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 09:01:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:01:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 09:01:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:01:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 09:01:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 09:01:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 09:01:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 09:01:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 09:01:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 09:01:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-23 09:01:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-23 09:01:59,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:01:59,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532745342] [2023-11-23 09:01:59,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532745342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:01:59,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:01:59,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:01:59,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43482879] [2023-11-23 09:01:59,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:01:59,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:01:59,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:01:59,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:01:59,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:01:59,732 INFO L87 Difference]: Start difference. First operand has 423 states, 233 states have (on average 1.296137339055794) internal successors, (302), 238 states have internal predecessors, (302), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 09:02:01,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 09:02:03,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:03,002 INFO L93 Difference]: Finished difference Result 1259 states and 2406 transitions. [2023-11-23 09:02:03,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:02:03,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 128 [2023-11-23 09:02:03,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:03,033 INFO L225 Difference]: With dead ends: 1259 [2023-11-23 09:02:03,034 INFO L226 Difference]: Without dead ends: 842 [2023-11-23 09:02:03,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:02:03,048 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 604 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 968 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 968 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:03,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1177 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [968 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-23 09:02:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2023-11-23 09:02:03,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 420. [2023-11-23 09:02:03,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 232 states have (on average 1.25) internal successors, (290), 235 states have internal predecessors, (290), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2023-11-23 09:02:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 608 transitions. [2023-11-23 09:02:03,186 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 608 transitions. Word has length 128 [2023-11-23 09:02:03,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:03,187 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 608 transitions. [2023-11-23 09:02:03,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 09:02:03,187 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 608 transitions. [2023-11-23 09:02:03,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-23 09:02:03,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:03,189 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-23 09:02:03,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 09:02:03,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:03,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:03,190 INFO L85 PathProgramCache]: Analyzing trace with hash -412918844, now seen corresponding path program 1 times [2023-11-23 09:02:03,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:03,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306216876] [2023-11-23 09:02:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:03,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:02:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:02:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:02:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:02:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:02:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 09:02:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 09:02:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 09:02:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 09:02:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 09:02:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 09:02:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 09:02:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 09:02:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 09:02:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 09:02:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 09:02:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 09:02:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-11-23 09:02:03,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:03,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306216876] [2023-11-23 09:02:03,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306216876] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:02:03,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366740026] [2023-11-23 09:02:03,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:03,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:03,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:03,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:03,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 09:02:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:04,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 2470 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 09:02:04,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:04,531 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-23 09:02:04,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:04,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366740026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:04,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:02:04,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 09:02:04,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436538433] [2023-11-23 09:02:04,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:04,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:02:04,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:04,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:02:04,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:02:04,535 INFO L87 Difference]: Start difference. First operand 420 states and 608 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-23 09:02:05,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:05,604 INFO L93 Difference]: Finished difference Result 811 states and 1190 transitions. [2023-11-23 09:02:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:02:05,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 145 [2023-11-23 09:02:05,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:05,610 INFO L225 Difference]: With dead ends: 811 [2023-11-23 09:02:05,610 INFO L226 Difference]: Without dead ends: 422 [2023-11-23 09:02:05,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:02:05,613 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 66 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:05,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 2104 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 09:02:05,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-11-23 09:02:05,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2023-11-23 09:02:05,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 233 states have (on average 1.2489270386266094) internal successors, (291), 237 states have internal predecessors, (291), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2023-11-23 09:02:05,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 622 transitions. [2023-11-23 09:02:05,648 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 622 transitions. Word has length 145 [2023-11-23 09:02:05,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:05,649 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 622 transitions. [2023-11-23 09:02:05,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-23 09:02:05,649 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 622 transitions. [2023-11-23 09:02:05,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-23 09:02:05,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:05,653 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1] [2023-11-23 09:02:05,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:05,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:05,869 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:05,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash 104439328, now seen corresponding path program 1 times [2023-11-23 09:02:05,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:05,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126069184] [2023-11-23 09:02:05,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:05,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:02:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:02:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:02:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:02:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 09:02:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 09:02:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 09:02:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 09:02:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 09:02:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 09:02:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 09:02:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 09:02:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 09:02:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-23 09:02:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 09:02:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 09:02:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 09:02:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 09:02:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-11-23 09:02:06,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:06,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126069184] [2023-11-23 09:02:06,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126069184] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:02:06,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684047243] [2023-11-23 09:02:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:06,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:06,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:06,445 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:06,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 09:02:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:06,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 2520 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:02:06,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:07,010 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-23 09:02:07,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:07,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684047243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:07,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:02:07,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2023-11-23 09:02:07,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456653699] [2023-11-23 09:02:07,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:07,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:02:07,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:07,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:02:07,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-11-23 09:02:07,013 INFO L87 Difference]: Start difference. First operand 422 states and 622 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-23 09:02:09,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 09:02:09,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:09,905 INFO L93 Difference]: Finished difference Result 834 states and 1261 transitions. [2023-11-23 09:02:09,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:02:09,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 153 [2023-11-23 09:02:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:09,908 INFO L225 Difference]: With dead ends: 834 [2023-11-23 09:02:09,909 INFO L226 Difference]: Without dead ends: 443 [2023-11-23 09:02:09,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-11-23 09:02:09,911 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 117 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:09,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 3044 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2023-11-23 09:02:09,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-23 09:02:09,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2023-11-23 09:02:09,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 253 states have internal predecessors, (313), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2023-11-23 09:02:09,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-23 09:02:09,930 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 153 [2023-11-23 09:02:09,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:09,931 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-23 09:02:09,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-23 09:02:09,931 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-23 09:02:09,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-23 09:02:09,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:09,932 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:09,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:10,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 09:02:10,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:10,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:10,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2017563376, now seen corresponding path program 1 times [2023-11-23 09:02:10,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:10,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775904662] [2023-11-23 09:02:10,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:10,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:10,231 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:10,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148930014] [2023-11-23 09:02:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:10,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:10,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:10,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:10,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 09:02:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:10,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 2659 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:02:10,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-23 09:02:10,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:10,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:10,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775904662] [2023-11-23 09:02:10,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:10,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148930014] [2023-11-23 09:02:10,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148930014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:10,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:10,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:02:10,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885217631] [2023-11-23 09:02:10,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:10,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:02:10,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:10,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:02:10,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:02:10,853 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 09:02:12,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:12,557 INFO L93 Difference]: Finished difference Result 857 states and 1320 transitions. [2023-11-23 09:02:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:02:12,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 166 [2023-11-23 09:02:12,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:12,561 INFO L225 Difference]: With dead ends: 857 [2023-11-23 09:02:12,561 INFO L226 Difference]: Without dead ends: 447 [2023-11-23 09:02:12,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:02:12,563 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 85 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:12,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 2598 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 09:02:12,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-23 09:02:12,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2023-11-23 09:02:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 253 states have internal predecessors, (313), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2023-11-23 09:02:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-23 09:02:12,580 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 166 [2023-11-23 09:02:12,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:12,580 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-23 09:02:12,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 09:02:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-23 09:02:12,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-23 09:02:12,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:12,582 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:12,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:12,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:12,799 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:12,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1616226021, now seen corresponding path program 1 times [2023-11-23 09:02:12,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:12,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306256419] [2023-11-23 09:02:12,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:12,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:12,874 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:12,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062046483] [2023-11-23 09:02:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:12,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:12,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:12,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:12,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 09:02:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:13,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 2731 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:13,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-23 09:02:13,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:13,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:13,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306256419] [2023-11-23 09:02:13,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:13,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062046483] [2023-11-23 09:02:13,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062046483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:13,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:13,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:02:13,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031325163] [2023-11-23 09:02:13,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:13,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:02:13,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:02:13,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:02:13,512 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2023-11-23 09:02:14,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:14,591 INFO L93 Difference]: Finished difference Result 867 states and 1324 transitions. [2023-11-23 09:02:14,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:02:14,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 182 [2023-11-23 09:02:14,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:14,594 INFO L225 Difference]: With dead ends: 867 [2023-11-23 09:02:14,594 INFO L226 Difference]: Without dead ends: 457 [2023-11-23 09:02:14,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:02:14,597 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 145 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:14,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 3495 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 09:02:14,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-23 09:02:14,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 441. [2023-11-23 09:02:14,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 253 states have internal predecessors, (313), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2023-11-23 09:02:14,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-23 09:02:14,612 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 182 [2023-11-23 09:02:14,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:14,613 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-23 09:02:14,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2023-11-23 09:02:14,613 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-23 09:02:14,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-23 09:02:14,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:14,615 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2023-11-23 09:02:14,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-23 09:02:14,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:14,828 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:14,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:14,829 INFO L85 PathProgramCache]: Analyzing trace with hash 756464807, now seen corresponding path program 2 times [2023-11-23 09:02:14,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:14,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581871049] [2023-11-23 09:02:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:14,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:14,902 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:14,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733447563] [2023-11-23 09:02:14,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:02:14,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:14,914 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:14,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 09:02:15,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 09:02:15,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:02:15,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:15,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2023-11-23 09:02:15,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:15,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581871049] [2023-11-23 09:02:15,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733447563] [2023-11-23 09:02:15,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733447563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:15,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:15,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:02:15,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84746097] [2023-11-23 09:02:15,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:15,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:02:15,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:15,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:02:15,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:02:15,469 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 09:02:15,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:15,612 INFO L93 Difference]: Finished difference Result 449 states and 673 transitions. [2023-11-23 09:02:15,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:02:15,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 195 [2023-11-23 09:02:15,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:15,615 INFO L225 Difference]: With dead ends: 449 [2023-11-23 09:02:15,616 INFO L226 Difference]: Without dead ends: 447 [2023-11-23 09:02:15,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:02:15,617 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 5 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:15,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2879 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 09:02:15,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-23 09:02:15,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2023-11-23 09:02:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 252 states have (on average 1.253968253968254) internal successors, (316), 256 states have internal predecessors, (316), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (191), 162 states have call predecessors, (191), 161 states have call successors, (191) [2023-11-23 09:02:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 670 transitions. [2023-11-23 09:02:15,672 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 670 transitions. Word has length 195 [2023-11-23 09:02:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:15,673 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 670 transitions. [2023-11-23 09:02:15,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-23 09:02:15,674 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 670 transitions. [2023-11-23 09:02:15,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-23 09:02:15,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:15,675 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:15,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-23 09:02:15,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:15,891 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:15,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:15,892 INFO L85 PathProgramCache]: Analyzing trace with hash 805498223, now seen corresponding path program 3 times [2023-11-23 09:02:15,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:15,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978033578] [2023-11-23 09:02:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:15,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:15,967 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:15,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731443053] [2023-11-23 09:02:15,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 09:02:15,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:15,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:15,981 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:15,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 09:02:16,668 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 09:02:16,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:02:16,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 09:02:16,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:16,712 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-23 09:02:16,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:16,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:16,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978033578] [2023-11-23 09:02:16,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:16,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731443053] [2023-11-23 09:02:16,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731443053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:16,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:16,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:02:16,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429280963] [2023-11-23 09:02:16,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:16,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:02:16,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:16,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:02:16,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:02:16,715 INFO L87 Difference]: Start difference. First operand 446 states and 670 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-23 09:02:17,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:17,030 INFO L93 Difference]: Finished difference Result 820 states and 1262 transitions. [2023-11-23 09:02:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:02:17,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 208 [2023-11-23 09:02:17,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:17,033 INFO L225 Difference]: With dead ends: 820 [2023-11-23 09:02:17,033 INFO L226 Difference]: Without dead ends: 446 [2023-11-23 09:02:17,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:02:17,036 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 2 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:17,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2642 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:02:17,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-11-23 09:02:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2023-11-23 09:02:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 252 states have (on average 1.253968253968254) internal successors, (316), 256 states have internal predecessors, (316), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (190), 162 states have call predecessors, (190), 161 states have call successors, (190) [2023-11-23 09:02:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 669 transitions. [2023-11-23 09:02:17,052 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 669 transitions. Word has length 208 [2023-11-23 09:02:17,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:17,052 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 669 transitions. [2023-11-23 09:02:17,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-23 09:02:17,053 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 669 transitions. [2023-11-23 09:02:17,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-23 09:02:17,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:17,054 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:17,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-23 09:02:17,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:17,265 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:17,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1851635575, now seen corresponding path program 1 times [2023-11-23 09:02:17,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:17,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735218207] [2023-11-23 09:02:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:17,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:17,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:17,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625975859] [2023-11-23 09:02:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:17,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:17,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:17,345 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:17,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 09:02:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:18,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 3148 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:02:18,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-11-23 09:02:18,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:18,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:18,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735218207] [2023-11-23 09:02:18,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:18,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625975859] [2023-11-23 09:02:18,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625975859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:18,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:18,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:02:18,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445286904] [2023-11-23 09:02:18,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:18,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:02:18,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:18,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:02:18,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:02:18,109 INFO L87 Difference]: Start difference. First operand 446 states and 669 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 09:02:19,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:19,795 INFO L93 Difference]: Finished difference Result 829 states and 1262 transitions. [2023-11-23 09:02:19,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:02:19,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 221 [2023-11-23 09:02:19,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:19,799 INFO L225 Difference]: With dead ends: 829 [2023-11-23 09:02:19,800 INFO L226 Difference]: Without dead ends: 448 [2023-11-23 09:02:19,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:02:19,802 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 76 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:19,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 2626 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-23 09:02:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-23 09:02:19,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2023-11-23 09:02:19,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 253 states have (on average 1.2529644268774704) internal successors, (317), 258 states have internal predecessors, (317), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (201), 162 states have call predecessors, (201), 161 states have call successors, (201) [2023-11-23 09:02:19,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 681 transitions. [2023-11-23 09:02:19,824 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 681 transitions. Word has length 221 [2023-11-23 09:02:19,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:19,824 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 681 transitions. [2023-11-23 09:02:19,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 09:02:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 681 transitions. [2023-11-23 09:02:19,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-23 09:02:19,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:19,827 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:19,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:20,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:20,045 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:20,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1918359597, now seen corresponding path program 1 times [2023-11-23 09:02:20,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:20,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950030313] [2023-11-23 09:02:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:20,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:20,128 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:20,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163643157] [2023-11-23 09:02:20,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:20,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:20,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:20,130 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:20,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 09:02:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:20,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 3198 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:20,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:20,960 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-23 09:02:20,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:20,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:20,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950030313] [2023-11-23 09:02:20,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:20,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163643157] [2023-11-23 09:02:20,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163643157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:20,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:20,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:02:20,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10647107] [2023-11-23 09:02:20,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:20,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:02:20,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:20,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:02:20,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:02:20,963 INFO L87 Difference]: Start difference. First operand 448 states and 681 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 09:02:22,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:22,200 INFO L93 Difference]: Finished difference Result 847 states and 1306 transitions. [2023-11-23 09:02:22,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:02:22,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 229 [2023-11-23 09:02:22,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:22,212 INFO L225 Difference]: With dead ends: 847 [2023-11-23 09:02:22,212 INFO L226 Difference]: Without dead ends: 464 [2023-11-23 09:02:22,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:02:22,229 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 127 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:22,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 3541 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 09:02:22,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-23 09:02:22,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2023-11-23 09:02:22,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 266 states have (on average 1.2593984962406015) internal successors, (335), 270 states have internal predecessors, (335), 164 states have call successors, (164), 28 states have call predecessors, (164), 30 states have return successors, (202), 164 states have call predecessors, (202), 162 states have call successors, (202) [2023-11-23 09:02:22,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 701 transitions. [2023-11-23 09:02:22,251 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 701 transitions. Word has length 229 [2023-11-23 09:02:22,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:22,252 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 701 transitions. [2023-11-23 09:02:22,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 09:02:22,252 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 701 transitions. [2023-11-23 09:02:22,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-23 09:02:22,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:22,254 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1] [2023-11-23 09:02:22,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:22,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 09:02:22,472 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:22,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash -964219519, now seen corresponding path program 1 times [2023-11-23 09:02:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:22,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163798417] [2023-11-23 09:02:22,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:22,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:22,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:22,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472030773] [2023-11-23 09:02:22,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:22,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:22,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:22,569 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:22,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 09:02:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:23,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 3337 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:23,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:23,286 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 09:02:23,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:23,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:23,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163798417] [2023-11-23 09:02:23,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:23,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472030773] [2023-11-23 09:02:23,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472030773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:23,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:23,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 09:02:23,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517947208] [2023-11-23 09:02:23,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:23,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:02:23,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:23,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:02:23,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:02:23,288 INFO L87 Difference]: Start difference. First operand 462 states and 701 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 09:02:24,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:24,484 INFO L93 Difference]: Finished difference Result 865 states and 1340 transitions. [2023-11-23 09:02:24,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:02:24,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 242 [2023-11-23 09:02:24,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:24,488 INFO L225 Difference]: With dead ends: 865 [2023-11-23 09:02:24,488 INFO L226 Difference]: Without dead ends: 468 [2023-11-23 09:02:24,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:02:24,491 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 95 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:24,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3111 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 09:02:24,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-23 09:02:24,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 462. [2023-11-23 09:02:24,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 266 states have (on average 1.2593984962406015) internal successors, (335), 270 states have internal predecessors, (335), 164 states have call successors, (164), 28 states have call predecessors, (164), 30 states have return successors, (202), 164 states have call predecessors, (202), 162 states have call successors, (202) [2023-11-23 09:02:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 701 transitions. [2023-11-23 09:02:24,522 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 701 transitions. Word has length 242 [2023-11-23 09:02:24,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:24,523 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 701 transitions. [2023-11-23 09:02:24,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 09:02:24,523 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 701 transitions. [2023-11-23 09:02:24,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-23 09:02:24,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:24,532 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-23 09:02:24,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:24,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 09:02:24,751 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:24,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:24,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1397399770, now seen corresponding path program 1 times [2023-11-23 09:02:24,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:24,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106265197] [2023-11-23 09:02:24,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:24,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:24,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:24,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975139776] [2023-11-23 09:02:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:24,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:24,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:24,862 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:24,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 09:02:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:25,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 3548 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-23 09:02:25,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2023-11-23 09:02:25,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:25,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:25,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106265197] [2023-11-23 09:02:25,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:25,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975139776] [2023-11-23 09:02:25,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975139776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:25,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:25,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:02:25,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518243453] [2023-11-23 09:02:25,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:25,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:02:25,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:25,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:02:25,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:02:25,733 INFO L87 Difference]: Start difference. First operand 462 states and 701 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 09:02:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:26,120 INFO L93 Difference]: Finished difference Result 895 states and 1365 transitions. [2023-11-23 09:02:26,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:02:26,121 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) Word has length 271 [2023-11-23 09:02:26,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:26,124 INFO L225 Difference]: With dead ends: 895 [2023-11-23 09:02:26,124 INFO L226 Difference]: Without dead ends: 464 [2023-11-23 09:02:26,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:02:26,126 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 3 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4316 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:26,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4316 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:02:26,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-23 09:02:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2023-11-23 09:02:26,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 267 states have (on average 1.2584269662921348) internal successors, (336), 272 states have internal predecessors, (336), 164 states have call successors, (164), 28 states have call predecessors, (164), 31 states have return successors, (205), 164 states have call predecessors, (205), 162 states have call successors, (205) [2023-11-23 09:02:26,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 705 transitions. [2023-11-23 09:02:26,159 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 705 transitions. Word has length 271 [2023-11-23 09:02:26,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:26,160 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 705 transitions. [2023-11-23 09:02:26,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 09:02:26,160 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 705 transitions. [2023-11-23 09:02:26,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-23 09:02:26,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:26,162 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:26,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:26,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 09:02:26,381 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:26,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:26,381 INFO L85 PathProgramCache]: Analyzing trace with hash -253558249, now seen corresponding path program 1 times [2023-11-23 09:02:26,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:26,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398589207] [2023-11-23 09:02:26,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:26,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:26,481 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:26,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236094516] [2023-11-23 09:02:26,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:26,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:26,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:26,497 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:26,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 09:02:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:27,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 3443 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 09:02:27,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:27,366 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2023-11-23 09:02:27,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:27,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:27,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398589207] [2023-11-23 09:02:27,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:27,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236094516] [2023-11-23 09:02:27,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236094516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:27,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:27,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:02:27,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078041220] [2023-11-23 09:02:27,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:27,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:02:27,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:27,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:02:27,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:02:27,369 INFO L87 Difference]: Start difference. First operand 464 states and 705 transitions. Second operand has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 09:02:29,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:29,191 INFO L93 Difference]: Finished difference Result 861 states and 1316 transitions. [2023-11-23 09:02:29,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 09:02:29,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 268 [2023-11-23 09:02:29,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:29,194 INFO L225 Difference]: With dead ends: 861 [2023-11-23 09:02:29,194 INFO L226 Difference]: Without dead ends: 464 [2023-11-23 09:02:29,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:02:29,197 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 155 mSDsluCounter, 3459 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:29,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 3981 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 09:02:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-23 09:02:29,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 448. [2023-11-23 09:02:29,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 253 states have (on average 1.2529644268774704) internal successors, (317), 258 states have internal predecessors, (317), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (191), 162 states have call predecessors, (191), 161 states have call successors, (191) [2023-11-23 09:02:29,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 671 transitions. [2023-11-23 09:02:29,213 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 671 transitions. Word has length 268 [2023-11-23 09:02:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:29,214 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 671 transitions. [2023-11-23 09:02:29,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 09:02:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 671 transitions. [2023-11-23 09:02:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-11-23 09:02:29,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:29,217 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:29,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:29,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 09:02:29,435 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:29,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:29,436 INFO L85 PathProgramCache]: Analyzing trace with hash 167594777, now seen corresponding path program 1 times [2023-11-23 09:02:29,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:29,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373729056] [2023-11-23 09:02:29,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:29,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:29,517 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:29,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1506162847] [2023-11-23 09:02:29,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:29,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:29,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:29,532 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:29,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 09:02:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:30,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 3582 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 09:02:30,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 264 proven. 2 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-23 09:02:30,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:02:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2023-11-23 09:02:30,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:30,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373729056] [2023-11-23 09:02:30,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:30,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506162847] [2023-11-23 09:02:30,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506162847] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 09:02:30,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 09:02:30,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-23 09:02:30,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930613816] [2023-11-23 09:02:30,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 09:02:30,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:02:30,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:30,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:02:30,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:02:30,678 INFO L87 Difference]: Start difference. First operand 448 states and 671 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) [2023-11-23 09:02:32,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:32,168 INFO L93 Difference]: Finished difference Result 878 states and 1326 transitions. [2023-11-23 09:02:32,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:02:32,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) Word has length 281 [2023-11-23 09:02:32,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:32,172 INFO L225 Difference]: With dead ends: 878 [2023-11-23 09:02:32,172 INFO L226 Difference]: Without dead ends: 500 [2023-11-23 09:02:32,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:02:32,174 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 50 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:32,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4059 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 09:02:32,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-23 09:02:32,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 469. [2023-11-23 09:02:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 267 states have (on average 1.2546816479400749) internal successors, (335), 271 states have internal predecessors, (335), 170 states have call successors, (170), 28 states have call predecessors, (170), 30 states have return successors, (200), 170 states have call predecessors, (200), 168 states have call successors, (200) [2023-11-23 09:02:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 705 transitions. [2023-11-23 09:02:32,190 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 705 transitions. Word has length 281 [2023-11-23 09:02:32,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:32,191 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 705 transitions. [2023-11-23 09:02:32,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) [2023-11-23 09:02:32,191 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 705 transitions. [2023-11-23 09:02:32,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-11-23 09:02:32,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:32,193 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:32,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-23 09:02:32,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 09:02:32,409 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:32,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:32,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1121534935, now seen corresponding path program 1 times [2023-11-23 09:02:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:32,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121968353] [2023-11-23 09:02:32,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:32,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:32,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:32,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957100066] [2023-11-23 09:02:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:32,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:32,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:32,502 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:32,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 09:02:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:33,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 3579 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 09:02:33,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 296 proven. 2 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-11-23 09:02:33,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:02:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2023-11-23 09:02:33,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:33,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121968353] [2023-11-23 09:02:33,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:33,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957100066] [2023-11-23 09:02:33,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957100066] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 09:02:33,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 09:02:33,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2023-11-23 09:02:33,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211443415] [2023-11-23 09:02:33,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 09:02:33,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:02:33,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:02:33,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:02:33,650 INFO L87 Difference]: Start difference. First operand 469 states and 705 transitions. Second operand has 7 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-23 09:02:35,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:35,527 INFO L93 Difference]: Finished difference Result 886 states and 1337 transitions. [2023-11-23 09:02:35,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:02:35,528 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) Word has length 281 [2023-11-23 09:02:35,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:35,531 INFO L225 Difference]: With dead ends: 886 [2023-11-23 09:02:35,531 INFO L226 Difference]: Without dead ends: 500 [2023-11-23 09:02:35,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:02:35,534 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 36 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:35,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3542 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-23 09:02:35,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-23 09:02:35,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 469. [2023-11-23 09:02:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 267 states have (on average 1.250936329588015) internal successors, (334), 271 states have internal predecessors, (334), 170 states have call successors, (170), 28 states have call predecessors, (170), 30 states have return successors, (200), 170 states have call predecessors, (200), 168 states have call successors, (200) [2023-11-23 09:02:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 704 transitions. [2023-11-23 09:02:35,551 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 704 transitions. Word has length 281 [2023-11-23 09:02:35,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:35,551 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 704 transitions. [2023-11-23 09:02:35,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-23 09:02:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 704 transitions. [2023-11-23 09:02:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-11-23 09:02:35,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:35,553 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:35,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:35,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 09:02:35,769 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:35,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:35,769 INFO L85 PathProgramCache]: Analyzing trace with hash 581105429, now seen corresponding path program 1 times [2023-11-23 09:02:35,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:35,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335997603] [2023-11-23 09:02:35,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:35,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:35,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:35,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184697067] [2023-11-23 09:02:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:35,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:35,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:35,877 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:35,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 09:02:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:36,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 3576 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-23 09:02:36,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:37,027 INFO L378 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 9 treesize of output 3 [2023-11-23 09:02:37,030 INFO L378 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 9 treesize of output 3 [2023-11-23 09:02:37,049 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-23 09:02:37,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:37,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:37,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335997603] [2023-11-23 09:02:37,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:37,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184697067] [2023-11-23 09:02:37,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184697067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:37,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:37,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 09:02:37,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623071450] [2023-11-23 09:02:37,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:37,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 09:02:37,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:37,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 09:02:37,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-23 09:02:37,052 INFO L87 Difference]: Start difference. First operand 469 states and 704 transitions. Second operand has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-23 09:02:38,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:38,574 INFO L93 Difference]: Finished difference Result 943 states and 1464 transitions. [2023-11-23 09:02:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 09:02:38,575 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) Word has length 281 [2023-11-23 09:02:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:38,578 INFO L225 Difference]: With dead ends: 943 [2023-11-23 09:02:38,578 INFO L226 Difference]: Without dead ends: 505 [2023-11-23 09:02:38,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2023-11-23 09:02:38,583 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 77 mSDsluCounter, 4125 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 4672 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:38,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 4672 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 09:02:38,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-11-23 09:02:38,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 494. [2023-11-23 09:02:38,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 291 states have (on average 1.261168384879725) internal successors, (367), 294 states have internal predecessors, (367), 170 states have call successors, (170), 28 states have call predecessors, (170), 31 states have return successors, (217), 172 states have call predecessors, (217), 168 states have call successors, (217) [2023-11-23 09:02:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 754 transitions. [2023-11-23 09:02:38,601 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 754 transitions. Word has length 281 [2023-11-23 09:02:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:38,601 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 754 transitions. [2023-11-23 09:02:38,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 13 states have internal predecessors, (109), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-23 09:02:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 754 transitions. [2023-11-23 09:02:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-11-23 09:02:38,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:38,603 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-23 09:02:38,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:38,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:38,823 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:38,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:38,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1326595985, now seen corresponding path program 1 times [2023-11-23 09:02:38,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:38,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642901783] [2023-11-23 09:02:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:38,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:38,908 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:38,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619042432] [2023-11-23 09:02:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:38,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:38,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:38,909 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:38,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 09:02:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:39,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 3566 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:02:39,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-11-23 09:02:39,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:39,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:39,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642901783] [2023-11-23 09:02:39,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:39,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619042432] [2023-11-23 09:02:39,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619042432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:39,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:39,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:02:39,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976277293] [2023-11-23 09:02:39,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:39,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:02:39,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:02:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:02:39,764 INFO L87 Difference]: Start difference. First operand 494 states and 754 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:39,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:39,902 INFO L93 Difference]: Finished difference Result 960 states and 1537 transitions. [2023-11-23 09:02:39,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:02:39,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 281 [2023-11-23 09:02:39,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:39,907 INFO L225 Difference]: With dead ends: 960 [2023-11-23 09:02:39,907 INFO L226 Difference]: Without dead ends: 497 [2023-11-23 09:02:39,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:02:39,911 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 7 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:39,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1744 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 09:02:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-11-23 09:02:39,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 494. [2023-11-23 09:02:39,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 291 states have (on average 1.2577319587628866) internal successors, (366), 294 states have internal predecessors, (366), 170 states have call successors, (170), 28 states have call predecessors, (170), 31 states have return successors, (217), 172 states have call predecessors, (217), 168 states have call successors, (217) [2023-11-23 09:02:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 753 transitions. [2023-11-23 09:02:39,931 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 753 transitions. Word has length 281 [2023-11-23 09:02:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:39,932 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 753 transitions. [2023-11-23 09:02:39,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 753 transitions. [2023-11-23 09:02:39,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-23 09:02:39,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:39,934 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-23 09:02:39,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:40,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 09:02:40,148 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:40,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:40,149 INFO L85 PathProgramCache]: Analyzing trace with hash -220341555, now seen corresponding path program 1 times [2023-11-23 09:02:40,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:40,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62746738] [2023-11-23 09:02:40,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:40,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:40,223 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:40,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39068003] [2023-11-23 09:02:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:40,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:40,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:40,236 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:40,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 09:02:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 3596 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:41,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2023-11-23 09:02:41,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:41,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:41,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62746738] [2023-11-23 09:02:41,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:41,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39068003] [2023-11-23 09:02:41,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39068003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:41,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:41,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:02:41,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861325858] [2023-11-23 09:02:41,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:41,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:02:41,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:41,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:02:41,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:02:41,247 INFO L87 Difference]: Start difference. First operand 494 states and 753 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:42,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:42,622 INFO L93 Difference]: Finished difference Result 1013 states and 1572 transitions. [2023-11-23 09:02:42,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:02:42,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 285 [2023-11-23 09:02:42,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:42,625 INFO L225 Difference]: With dead ends: 1013 [2023-11-23 09:02:42,626 INFO L226 Difference]: Without dead ends: 550 [2023-11-23 09:02:42,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:02:42,630 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 21 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:42,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2721 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 09:02:42,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-23 09:02:42,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 510. [2023-11-23 09:02:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 307 states have (on average 1.257328990228013) internal successors, (386), 310 states have internal predecessors, (386), 170 states have call successors, (170), 28 states have call predecessors, (170), 31 states have return successors, (217), 172 states have call predecessors, (217), 168 states have call successors, (217) [2023-11-23 09:02:42,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 773 transitions. [2023-11-23 09:02:42,648 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 773 transitions. Word has length 285 [2023-11-23 09:02:42,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:42,649 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 773 transitions. [2023-11-23 09:02:42,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:42,649 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 773 transitions. [2023-11-23 09:02:42,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-23 09:02:42,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:42,651 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-23 09:02:42,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:42,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 09:02:42,871 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:42,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:42,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1227796305, now seen corresponding path program 1 times [2023-11-23 09:02:42,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:42,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515353462] [2023-11-23 09:02:42,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:42,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:42,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:42,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845112776] [2023-11-23 09:02:42,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:42,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:42,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:42,953 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:43,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 09:02:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 3590 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:02:43,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:43,949 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-23 09:02:43,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:43,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:43,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515353462] [2023-11-23 09:02:43,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:43,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845112776] [2023-11-23 09:02:43,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845112776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:43,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:43,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:02:43,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735127978] [2023-11-23 09:02:43,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:43,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:02:43,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:43,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:02:43,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:02:43,952 INFO L87 Difference]: Start difference. First operand 510 states and 773 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:44,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:44,039 INFO L93 Difference]: Finished difference Result 1005 states and 1556 transitions. [2023-11-23 09:02:44,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:02:44,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 285 [2023-11-23 09:02:44,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:44,042 INFO L225 Difference]: With dead ends: 1005 [2023-11-23 09:02:44,043 INFO L226 Difference]: Without dead ends: 526 [2023-11-23 09:02:44,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:02:44,046 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 3 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:44,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1736 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 09:02:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-11-23 09:02:44,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 518. [2023-11-23 09:02:44,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 315 states have (on average 1.2507936507936508) internal successors, (394), 318 states have internal predecessors, (394), 170 states have call successors, (170), 28 states have call predecessors, (170), 31 states have return successors, (217), 172 states have call predecessors, (217), 168 states have call successors, (217) [2023-11-23 09:02:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 781 transitions. [2023-11-23 09:02:44,064 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 781 transitions. Word has length 285 [2023-11-23 09:02:44,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:44,065 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 781 transitions. [2023-11-23 09:02:44,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 781 transitions. [2023-11-23 09:02:44,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-23 09:02:44,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:44,067 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-23 09:02:44,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:44,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 09:02:44,281 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:44,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:44,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1072878805, now seen corresponding path program 1 times [2023-11-23 09:02:44,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:44,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208810856] [2023-11-23 09:02:44,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:44,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:44,358 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:44,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060521105] [2023-11-23 09:02:44,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:44,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:44,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:44,378 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:44,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 09:02:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:45,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 3580 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 09:02:45,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:45,579 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2023-11-23 09:02:45,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:45,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:45,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208810856] [2023-11-23 09:02:45,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:45,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060521105] [2023-11-23 09:02:45,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060521105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:45,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:45,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 09:02:45,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896251488] [2023-11-23 09:02:45,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:45,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:02:45,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:45,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:02:45,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:02:45,584 INFO L87 Difference]: Start difference. First operand 518 states and 781 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 09:02:46,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:46,795 INFO L93 Difference]: Finished difference Result 1012 states and 1611 transitions. [2023-11-23 09:02:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:02:46,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 285 [2023-11-23 09:02:46,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:46,799 INFO L225 Difference]: With dead ends: 1012 [2023-11-23 09:02:46,799 INFO L226 Difference]: Without dead ends: 525 [2023-11-23 09:02:46,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:02:46,804 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 15 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:46,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2234 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 09:02:46,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-11-23 09:02:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 519. [2023-11-23 09:02:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 316 states have (on average 1.25) internal successors, (395), 319 states have internal predecessors, (395), 170 states have call successors, (170), 28 states have call predecessors, (170), 31 states have return successors, (217), 172 states have call predecessors, (217), 168 states have call successors, (217) [2023-11-23 09:02:46,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 782 transitions. [2023-11-23 09:02:46,829 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 782 transitions. Word has length 285 [2023-11-23 09:02:46,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:46,829 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 782 transitions. [2023-11-23 09:02:46,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 09:02:46,830 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 782 transitions. [2023-11-23 09:02:46,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-23 09:02:46,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:46,832 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-23 09:02:46,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:47,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:47,045 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:47,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1672402257, now seen corresponding path program 1 times [2023-11-23 09:02:47,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:47,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889592011] [2023-11-23 09:02:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:47,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:47,142 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:47,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665915791] [2023-11-23 09:02:47,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:47,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:47,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:47,143 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:47,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 09:02:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:48,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 3570 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 09:02:48,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:48,224 INFO L378 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 11 treesize of output 5 [2023-11-23 09:02:48,244 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-23 09:02:48,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:48,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:48,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889592011] [2023-11-23 09:02:48,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:48,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665915791] [2023-11-23 09:02:48,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665915791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:48,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:48,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:02:48,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956932732] [2023-11-23 09:02:48,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:48,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:02:48,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:48,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:02:48,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:02:48,248 INFO L87 Difference]: Start difference. First operand 519 states and 782 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-23 09:02:49,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:49,659 INFO L93 Difference]: Finished difference Result 1051 states and 1628 transitions. [2023-11-23 09:02:49,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 09:02:49,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) Word has length 285 [2023-11-23 09:02:49,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:49,664 INFO L225 Difference]: With dead ends: 1051 [2023-11-23 09:02:49,664 INFO L226 Difference]: Without dead ends: 563 [2023-11-23 09:02:49,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-23 09:02:49,668 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 70 mSDsluCounter, 4056 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 4604 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:49,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 4604 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 09:02:49,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-23 09:02:49,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 527. [2023-11-23 09:02:49,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 323 states have (on average 1.238390092879257) internal successors, (400), 325 states have internal predecessors, (400), 170 states have call successors, (170), 28 states have call predecessors, (170), 32 states have return successors, (234), 174 states have call predecessors, (234), 168 states have call successors, (234) [2023-11-23 09:02:49,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 804 transitions. [2023-11-23 09:02:49,694 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 804 transitions. Word has length 285 [2023-11-23 09:02:49,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:49,694 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 804 transitions. [2023-11-23 09:02:49,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-23 09:02:49,694 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 804 transitions. [2023-11-23 09:02:49,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-23 09:02:49,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:49,697 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-23 09:02:49,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:49,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:49,912 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:49,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:49,913 INFO L85 PathProgramCache]: Analyzing trace with hash 470261453, now seen corresponding path program 1 times [2023-11-23 09:02:49,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:49,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692096893] [2023-11-23 09:02:49,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:49,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:50,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:50,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222566421] [2023-11-23 09:02:50,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:50,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:50,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:50,069 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:50,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 09:02:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:51,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 3576 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-23 09:02:51,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:51,234 INFO L378 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 61 treesize of output 37 [2023-11-23 09:02:51,332 INFO L378 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 44 treesize of output 32 [2023-11-23 09:02:51,335 INFO L378 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 32 treesize of output 20 [2023-11-23 09:02:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-23 09:02:51,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:51,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:51,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692096893] [2023-11-23 09:02:51,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:51,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222566421] [2023-11-23 09:02:51,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222566421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:51,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:51,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 09:02:51,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576889687] [2023-11-23 09:02:51,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:51,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 09:02:51,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:51,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 09:02:51,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-23 09:02:51,371 INFO L87 Difference]: Start difference. First operand 527 states and 804 transitions. Second operand has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-23 09:02:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:52,767 INFO L93 Difference]: Finished difference Result 1071 states and 1676 transitions. [2023-11-23 09:02:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 09:02:52,768 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) Word has length 285 [2023-11-23 09:02:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:52,772 INFO L225 Difference]: With dead ends: 1071 [2023-11-23 09:02:52,772 INFO L226 Difference]: Without dead ends: 575 [2023-11-23 09:02:52,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2023-11-23 09:02:52,777 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 84 mSDsluCounter, 4134 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 4684 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:52,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 4684 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 09:02:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-11-23 09:02:52,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 543. [2023-11-23 09:02:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 338 states have (on average 1.2396449704142012) internal successors, (419), 339 states have internal predecessors, (419), 170 states have call successors, (170), 28 states have call predecessors, (170), 33 states have return successors, (251), 176 states have call predecessors, (251), 168 states have call successors, (251) [2023-11-23 09:02:52,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 840 transitions. [2023-11-23 09:02:52,802 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 840 transitions. Word has length 285 [2023-11-23 09:02:52,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:52,803 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 840 transitions. [2023-11-23 09:02:52,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 5 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-23 09:02:52,803 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 840 transitions. [2023-11-23 09:02:52,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-23 09:02:52,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:52,805 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2023-11-23 09:02:52,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:53,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-23 09:02:53,026 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:53,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:53,027 INFO L85 PathProgramCache]: Analyzing trace with hash 439732495, now seen corresponding path program 1 times [2023-11-23 09:02:53,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:53,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122260341] [2023-11-23 09:02:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:53,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:53,103 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:53,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314088003] [2023-11-23 09:02:53,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:53,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:53,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:53,105 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:02:53,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 09:02:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:54,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 3563 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-23 09:02:54,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:54,279 WARN L876 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (select |c_#memory_int| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|)))) is different from true [2023-11-23 09:02:54,393 INFO L378 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 8 treesize of output 1 [2023-11-23 09:02:56,510 INFO L378 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 11 treesize of output 5 [2023-11-23 09:02:56,578 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-11-23 09:02:56,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:56,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:56,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122260341] [2023-11-23 09:02:56,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:56,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314088003] [2023-11-23 09:02:56,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314088003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:56,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:56,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 09:02:56,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105798448] [2023-11-23 09:02:56,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:56,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 09:02:56,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:56,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 09:02:56,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=124, Unknown=7, NotChecked=22, Total=182 [2023-11-23 09:02:56,581 INFO L87 Difference]: Start difference. First operand 543 states and 840 transitions. Second operand has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 14 states have internal predecessors, (118), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-23 09:03:07,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:10,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:12,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:15,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:17,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:19,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:21,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:23,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:25,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:27,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:29,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:32,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:34,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:37,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:39,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:42,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:44,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:46,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:48,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 09:03:51,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:51,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:51,929 INFO L93 Difference]: Finished difference Result 1475 states and 2513 transitions. [2023-11-23 09:03:51,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-23 09:03:51,930 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 14 states have internal predecessors, (118), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 285 [2023-11-23 09:03:51,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:51,951 INFO L225 Difference]: With dead ends: 1475 [2023-11-23 09:03:51,953 INFO L226 Difference]: Without dead ends: 963 [2023-11-23 09:03:51,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=193, Invalid=790, Unknown=13, NotChecked=60, Total=1056 [2023-11-23 09:03:51,957 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 372 mSDsluCounter, 3634 mSDsCounter, 0 mSdLazyCounter, 4245 mSolverCounterSat, 254 mSolverCounterUnsat, 45 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 4237 SdHoareTripleChecker+Invalid, 5731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 4245 IncrementalHoareTripleChecker+Invalid, 45 IncrementalHoareTripleChecker+Unknown, 1187 IncrementalHoareTripleChecker+Unchecked, 46.8s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:51,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 4237 Invalid, 5731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 4245 Invalid, 45 Unknown, 1187 Unchecked, 46.8s Time] [2023-11-23 09:03:51,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-11-23 09:03:51,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 547. [2023-11-23 09:03:51,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 342 states have (on average 1.2426900584795322) internal successors, (425), 343 states have internal predecessors, (425), 170 states have call successors, (170), 28 states have call predecessors, (170), 33 states have return successors, (251), 176 states have call predecessors, (251), 168 states have call successors, (251) [2023-11-23 09:03:51,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 846 transitions. [2023-11-23 09:03:51,991 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 846 transitions. Word has length 285 [2023-11-23 09:03:51,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:51,991 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 846 transitions. [2023-11-23 09:03:51,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 14 states have internal predecessors, (118), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-23 09:03:51,991 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 846 transitions. [2023-11-23 09:03:51,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-23 09:03:51,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:51,993 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-23 09:03:52,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:52,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-23 09:03:52,209 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:52,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:52,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1636710733, now seen corresponding path program 1 times [2023-11-23 09:03:52,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:52,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121868270] [2023-11-23 09:03:52,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:52,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:52,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:52,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44003054] [2023-11-23 09:03:52,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:52,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:52,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:52,301 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:03:52,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 09:03:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:53,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 3568 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 09:03:53,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2023-11-23 09:03:53,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:53,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:53,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121868270] [2023-11-23 09:03:53,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:53,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44003054] [2023-11-23 09:03:53,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44003054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:53,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:53,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 09:03:53,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133679727] [2023-11-23 09:03:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:53,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:03:53,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:03:53,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:03:53,417 INFO L87 Difference]: Start difference. First operand 547 states and 846 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, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 09:03:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:54,855 INFO L93 Difference]: Finished difference Result 1043 states and 1675 transitions. [2023-11-23 09:03:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:03:54,855 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, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 285 [2023-11-23 09:03:54,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:54,858 INFO L225 Difference]: With dead ends: 1043 [2023-11-23 09:03:54,858 INFO L226 Difference]: Without dead ends: 527 [2023-11-23 09:03:54,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:03:54,868 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 10 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:54,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2245 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 09:03:54,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-11-23 09:03:54,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2023-11-23 09:03:54,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 323 states have (on average 1.2352941176470589) internal successors, (399), 325 states have internal predecessors, (399), 170 states have call successors, (170), 28 states have call predecessors, (170), 32 states have return successors, (234), 174 states have call predecessors, (234), 168 states have call successors, (234) [2023-11-23 09:03:54,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 803 transitions. [2023-11-23 09:03:54,885 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 803 transitions. Word has length 285 [2023-11-23 09:03:54,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:54,885 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 803 transitions. [2023-11-23 09:03:54,885 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, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 09:03:54,885 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 803 transitions. [2023-11-23 09:03:54,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-23 09:03:54,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:54,887 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-23 09:03:54,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:55,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:55,100 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:55,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:55,101 INFO L85 PathProgramCache]: Analyzing trace with hash -856262959, now seen corresponding path program 1 times [2023-11-23 09:03:55,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:55,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995279585] [2023-11-23 09:03:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:55,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:55,170 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:55,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505248563] [2023-11-23 09:03:55,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:55,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:55,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:55,172 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:03:55,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 09:03:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:56,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 3570 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 09:03:56,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:56,990 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-23 09:03:56,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:56,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:56,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995279585] [2023-11-23 09:03:56,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:56,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505248563] [2023-11-23 09:03:56,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505248563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:56,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:56,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 09:03:56,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576409224] [2023-11-23 09:03:56,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:56,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:03:56,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:56,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:03:56,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:03:56,993 INFO L87 Difference]: Start difference. First operand 527 states and 803 transitions. Second operand has 5 states, 4 states have (on average 28.75) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2023-11-23 09:03:58,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 09:03:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:58,662 INFO L93 Difference]: Finished difference Result 971 states and 1488 transitions. [2023-11-23 09:03:58,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:03:58,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 28.75) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) Word has length 285 [2023-11-23 09:03:58,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:58,665 INFO L225 Difference]: With dead ends: 971 [2023-11-23 09:03:58,665 INFO L226 Difference]: Without dead ends: 506 [2023-11-23 09:03:58,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:03:58,667 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 2 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:58,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2096 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-23 09:03:58,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-11-23 09:03:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2023-11-23 09:03:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 309 states have (on average 1.233009708737864) internal successors, (381), 312 states have internal predecessors, (381), 163 states have call successors, (163), 28 states have call predecessors, (163), 32 states have return successors, (224), 166 states have call predecessors, (224), 161 states have call successors, (224) [2023-11-23 09:03:58,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 768 transitions. [2023-11-23 09:03:58,696 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 768 transitions. Word has length 285 [2023-11-23 09:03:58,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:58,697 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 768 transitions. [2023-11-23 09:03:58,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 28.75) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2023-11-23 09:03:58,697 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 768 transitions. [2023-11-23 09:03:58,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2023-11-23 09:03:58,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:58,699 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2023-11-23 09:03:58,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:58,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:58,912 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:58,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:58,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1896638134, now seen corresponding path program 1 times [2023-11-23 09:03:58,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:58,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411378922] [2023-11-23 09:03:58,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:58,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:58,989 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:58,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307283518] [2023-11-23 09:03:58,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:58,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:58,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:58,991 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:03:58,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 09:04:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:04,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 3610 conjuncts, 290 conjunts are in the unsatisfiable core [2023-11-23 09:04:04,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:04,553 INFO L378 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 5 [2023-11-23 09:04:08,054 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_7 Int) (v_DerPreprocessor_3 Int) (|v___CPROVER_overflow_mult_~#c~1.base_358| Int)) (let ((.cse0 (store (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_358| (select |c_#valid| |v___CPROVER_overflow_mult_~#c~1.base_358|)) |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|)))) (and (= |c_#valid| (store .cse0 v_prenex_7 (select |c_#valid| v_prenex_7))) (not (= v_prenex_7 |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (= (select .cse0 v_prenex_7) 0) (= 0 (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) |v___CPROVER_overflow_mult_~#c~1.base_358| (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_358|)) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) |v___CPROVER_overflow_mult_~#c~1.base_358|)) (not (= |v___CPROVER_overflow_mult_~#c~1.base_358| |v_aws_array_list_is_valid_~#required_size~0.base_67|))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0) (exists ((v_DerPreprocessor_9 Int) (v_DerPreprocessor_3 Int) (v_prenex_8 Int) (v_prenex_9 Int)) (let ((.cse1 (store |c_old(#valid)| v_prenex_9 v_DerPreprocessor_9)) (.cse2 (select |c_#valid| v_prenex_9))) (and (= (select (store .cse1 |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_prenex_8) v_prenex_9 .cse2) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_9) 0) (= (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) v_prenex_9 (select (store .cse1 |v_aws_array_list_is_valid_~#required_size~0.base_67| 0) v_prenex_9)) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_9) 0) (= |c_#valid| (store (store |c_old(#valid)| v_prenex_9 .cse2) |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|)))))))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0) (exists ((v_DerPreprocessor_3 Int) (v_prenex_8 Int) (|v___CPROVER_overflow_mult_~#c~1.base_358| Int) (v_prenex_9 Int)) (let ((.cse4 (select |c_#valid| v_prenex_9)) (.cse3 (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_358| (select |c_#valid| |v___CPROVER_overflow_mult_~#c~1.base_358|)))) (and (= |c_#valid| (store (store .cse3 v_prenex_9 .cse4) |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|))) (not (= |v___CPROVER_overflow_mult_~#c~1.base_358| |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (= (select (store .cse3 |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store .cse3 |v_aws_array_list_is_valid_~#required_size~0.base_67| v_prenex_8) v_prenex_9 .cse4) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_9) 0) (= (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) |v___CPROVER_overflow_mult_~#c~1.base_358| (select (store .cse3 |v_aws_array_list_is_valid_~#required_size~0.base_67| 0) |v___CPROVER_overflow_mult_~#c~1.base_358|)) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) |v___CPROVER_overflow_mult_~#c~1.base_358|) 0)))))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_DerPreprocessor_3 Int) (|v___CPROVER_overflow_mult_~#c~1.base_358| Int)) (let ((.cse5 (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_358| (select |c_#valid| |v___CPROVER_overflow_mult_~#c~1.base_358|)))) (and (= |c_#valid| (store .cse5 |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|))) (= (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) |v___CPROVER_overflow_mult_~#c~1.base_358| (select (store .cse5 |v_aws_array_list_is_valid_~#required_size~0.base_67| 0) |v___CPROVER_overflow_mult_~#c~1.base_358|)) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) |v___CPROVER_overflow_mult_~#c~1.base_358|) 0)))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_7 Int)) (let ((.cse6 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| 0))) (and (= (select .cse6 v_prenex_7) 0) (= |c_#valid| (store .cse6 v_prenex_7 (select |c_#valid| v_prenex_7)))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_6 Int) (v_prenex_8 Int) (v_prenex_9 Int)) (let ((.cse7 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| 0)) (.cse8 (select |c_#valid| v_prenex_9))) (and (= (select (store .cse7 v_prenex_6 (select (store (store .cse7 v_prenex_6 v_prenex_8) v_prenex_9 .cse8) v_prenex_6)) v_prenex_9) 0) (= (select .cse7 v_prenex_6) 0) (= |c_#valid| (store (store .cse7 v_prenex_9 .cse8) v_prenex_6 (select |c_#valid| v_prenex_6)))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_DerPreprocessor_3 Int) (|v___CPROVER_overflow_mult_~#c~1.base_358| Int)) (let ((.cse9 (select |c_#valid| |v___CPROVER_overflow_mult_~#c~1.base_358|))) (and (= |c_#valid| (store (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_358| .cse9) |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|))) (= (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) |v___CPROVER_overflow_mult_~#c~1.base_358| .cse9) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) |v___CPROVER_overflow_mult_~#c~1.base_358|) 0)))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_6 Int) (v_DerPreprocessor_3 Int) (v_DerPreprocessor_10 Int) (v_prenex_8 Int) (|v___CPROVER_overflow_mult_~#c~1.base_358| Int)) (let ((.cse11 (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_358| (select |c_#valid| |v___CPROVER_overflow_mult_~#c~1.base_358|)))) (let ((.cse12 (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (.cse10 (store .cse11 |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_10))) (and (= (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) |v___CPROVER_overflow_mult_~#c~1.base_358| (select .cse10 |v___CPROVER_overflow_mult_~#c~1.base_358|)) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) |v___CPROVER_overflow_mult_~#c~1.base_358|) 0) (= |c_#valid| (store (store .cse11 |v_aws_array_list_is_valid_~#required_size~0.base_67| .cse12) v_prenex_6 (select |c_#valid| v_prenex_6))) (not (= |v___CPROVER_overflow_mult_~#c~1.base_358| |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (= (select (store .cse10 v_prenex_6 (select (store (store .cse11 v_prenex_6 v_prenex_8) |v_aws_array_list_is_valid_~#required_size~0.base_67| .cse12) v_prenex_6)) |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0) (= (select .cse10 v_prenex_6) 0))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_6 Int) (v_DerPreprocessor_3 Int) (v_prenex_8 Int) (|v___CPROVER_overflow_mult_~#c~1.base_358| Int) (v_prenex_9 Int)) (let ((.cse14 (select |c_#valid| v_prenex_9)) (.cse13 (store (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_358| (select |c_#valid| |v___CPROVER_overflow_mult_~#c~1.base_358|)) |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|)))) (and (not (= v_prenex_6 |v___CPROVER_overflow_mult_~#c~1.base_358|)) (= 0 (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) |v___CPROVER_overflow_mult_~#c~1.base_358| (select .cse13 |v___CPROVER_overflow_mult_~#c~1.base_358|)) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) |v___CPROVER_overflow_mult_~#c~1.base_358|)) (not (= v_prenex_6 |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (= |c_#valid| (store (store .cse13 v_prenex_9 .cse14) v_prenex_6 (select |c_#valid| v_prenex_6))) (not (= |v___CPROVER_overflow_mult_~#c~1.base_358| |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (= (select (store .cse13 v_prenex_6 (select (store (store .cse13 v_prenex_6 v_prenex_8) v_prenex_9 .cse14) v_prenex_6)) v_prenex_9) 0) (not (= v_prenex_9 |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (= (select .cse13 v_prenex_6) 0) (not (= v_prenex_9 |v___CPROVER_overflow_mult_~#c~1.base_358|))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_10 Int) (v_DerPreprocessor_3 Int) (|v___CPROVER_overflow_mult_~#c~1.base_358| Int)) (let ((.cse16 (select |c_#valid| |v___CPROVER_overflow_mult_~#c~1.base_358|)) (.cse15 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|)))) (and (not (= v_prenex_10 |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (= (select (store .cse15 v_prenex_10 (select (store (store .cse15 v_prenex_10 v_DerPreprocessor_3) |v___CPROVER_overflow_mult_~#c~1.base_358| .cse16) v_prenex_10)) |v___CPROVER_overflow_mult_~#c~1.base_358|) 0) (= |c_#valid| (store (store .cse15 |v___CPROVER_overflow_mult_~#c~1.base_358| .cse16) v_prenex_10 (select |c_#valid| v_prenex_10))) (not (= |v___CPROVER_overflow_mult_~#c~1.base_358| |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (= (select .cse15 v_prenex_10) 0)))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0) (exists ((v_prenex_6 Int) (v_DerPreprocessor_3 Int) (v_prenex_8 Int) (v_prenex_9 Int)) (let ((.cse17 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|))) (.cse18 (select |c_#valid| v_prenex_9))) (and (= 0 (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) v_prenex_6 0) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_6)) (= |c_#valid| (store (store .cse17 v_prenex_9 .cse18) v_prenex_6 (select |c_#valid| v_prenex_6))) (= (select (store .cse17 v_prenex_6 (select (store (store .cse17 v_prenex_6 v_prenex_8) v_prenex_9 .cse18) v_prenex_6)) v_prenex_9) 0) (not (= v_prenex_6 |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (not (= v_prenex_9 |v_aws_array_list_is_valid_~#required_size~0.base_67|))))))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_6 Int)) (and (= (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| 0) v_prenex_6) 0) (= |c_#valid| (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_6 (select |c_#valid| v_prenex_6))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_6 Int) (v_DerPreprocessor_9 Int) (v_DerPreprocessor_3 Int) (v_prenex_8 Int) (v_prenex_9 Int)) (let ((.cse22 (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|))) (let ((.cse19 (store (store |c_old(#valid)| v_prenex_9 v_DerPreprocessor_9) |v_aws_array_list_is_valid_~#required_size~0.base_67| .cse22)) (.cse20 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| .cse22)) (.cse21 (select |c_#valid| v_prenex_9))) (and (= (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) v_prenex_9 (select .cse19 v_prenex_9)) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_9) 0) (= |c_#valid| (store (store .cse20 v_prenex_9 .cse21) v_prenex_6 (select |c_#valid| v_prenex_6))) (= (select .cse19 v_prenex_6) 0) (= (select (store .cse19 v_prenex_6 (select (store (store .cse20 v_prenex_6 v_prenex_8) v_prenex_9 .cse21) v_prenex_6)) v_prenex_9) 0) (not (= v_prenex_6 |v_aws_array_list_is_valid_~#required_size~0.base_67|)) (not (= v_prenex_9 |v_aws_array_list_is_valid_~#required_size~0.base_67|)))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_DerPreprocessor_11 Int) (v_prenex_10 Int) (v_DerPreprocessor_3 Int)) (let ((.cse23 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_11)) (.cse24 (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|))) (and (= (select .cse23 v_prenex_10) 0) (= (select (store .cse23 v_prenex_10 (select (store (store |c_old(#valid)| v_prenex_10 v_DerPreprocessor_3) |v_aws_array_list_is_valid_~#required_size~0.base_67| .cse24) v_prenex_10)) |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0) (= |c_#valid| (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| .cse24) v_prenex_10 (select |c_#valid| v_prenex_10)))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_6 Int) (v_DerPreprocessor_3 Int) (v_DerPreprocessor_10 Int) (v_prenex_8 Int)) (let ((.cse25 (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|))) (and (= 0 (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) v_prenex_6 0) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_6)) (= |c_#valid| (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| .cse25) v_prenex_6 (select |c_#valid| v_prenex_6))) (= (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_10) v_prenex_6 (select (store (store |c_old(#valid)| v_prenex_6 v_prenex_8) |v_aws_array_list_is_valid_~#required_size~0.base_67| .cse25) v_prenex_6)) |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0)))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_11 Int)) (let ((.cse26 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|)))) (and (= (select .cse26 v_prenex_11) 0) (= |c_#valid| (store .cse26 v_prenex_11 (select |c_#valid| v_prenex_11)))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_8 Int) (v_prenex_9 Int)) (let ((.cse27 (select |c_#valid| v_prenex_9))) (and (= (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_prenex_8) v_prenex_9 .cse27) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_9) 0) (= |c_#valid| (store (store |c_old(#valid)| v_prenex_9 .cse27) |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|)))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (exists ((v_prenex_7 Int) (v_DerPreprocessor_3 Int)) (and (= 0 (select (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| v_DerPreprocessor_3) v_prenex_7 0) |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_7)) (= |c_#valid| (store (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|)) v_prenex_7 (select |c_#valid| v_prenex_7))))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0))) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_67| Int)) (and (= |c_#valid| (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67| (select |c_#valid| |v_aws_array_list_is_valid_~#required_size~0.base_67|))) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_67|) 0)))) is different from false Killed by 15