./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:12:48,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:12:48,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:12:48,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:12:48,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:12:48,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:12:48,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:12:48,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:12:48,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:12:48,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:12:48,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:12:48,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:12:48,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:12:48,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:12:48,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:12:48,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:12:48,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:12:48,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:12:48,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:12:48,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:12:48,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:12:48,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:12:48,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:12:48,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:12:48,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:12:48,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:12:48,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:12:48,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:12:48,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:12:48,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:12:48,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:12:48,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:12:48,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:12:48,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:12:48,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:12:48,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:12:48,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:12:48,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:12:48,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:12:48,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:12:48,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:12:48,345 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:12:48,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:12:48,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:12:48,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:12:48,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:12:48,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:12:48,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:12:48,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:12:48,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:12:48,402 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:12:48,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:12:48,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:12:48,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:12:48,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:12:48,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:12:48,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:12:48,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:12:48,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:12:48,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:12:48,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:12:48,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:12:48,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:12:48,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:12:48,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:12:48,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:12:48,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:12:48,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:12:48,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:12:48,409 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:12:48,409 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:12:48,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:12:48,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2022-10-17 10:12:48,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:12:48,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:12:48,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:12:48,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:12:48,812 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:12:48,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-10-17 10:12:48,886 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/data/7bdba3e2e/10c55c0e67394c1197e9ab521523538d/FLAGfe4ce9520 [2022-10-17 10:12:49,809 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:12:49,810 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-10-17 10:12:49,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/data/7bdba3e2e/10c55c0e67394c1197e9ab521523538d/FLAGfe4ce9520 [2022-10-17 10:12:50,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/data/7bdba3e2e/10c55c0e67394c1197e9ab521523538d [2022-10-17 10:12:50,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:12:50,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:12:50,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:50,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:12:50,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:12:50,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:50" (1/1) ... [2022-10-17 10:12:50,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b70ebaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:50, skipping insertion in model container [2022-10-17 10:12:50,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:50" (1/1) ... [2022-10-17 10:12:50,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:12:50,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:12:50,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-10-17 10:12:50,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-10-17 10:12:51,648 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-10-17 10:12:51,726 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,727 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,727 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,728 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,729 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,744 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,745 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,747 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,747 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,750 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,751 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,752 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:51,752 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,124 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-10-17 10:12:52,126 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-10-17 10:12:52,127 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-10-17 10:12:52,129 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-10-17 10:12:52,130 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-10-17 10:12:52,131 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-10-17 10:12:52,132 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-10-17 10:12:52,133 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-10-17 10:12:52,134 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-10-17 10:12:52,135 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-10-17 10:12:52,297 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,334 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:52,548 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:12:52,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-10-17 10:12:52,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-10-17 10:12:52,657 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-10-17 10:12:52,682 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,683 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,686 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,686 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,687 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,702 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,703 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,704 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,705 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,706 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,707 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,708 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,708 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-10-17 10:12:52,771 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-10-17 10:12:52,772 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-10-17 10:12:52,773 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-10-17 10:12:52,775 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-10-17 10:12:52,776 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-10-17 10:12:52,777 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-10-17 10:12:52,777 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-10-17 10:12:52,783 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-10-17 10:12:52,784 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-10-17 10:12:52,850 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,856 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:12:52,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:53,238 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:12:53,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53 WrapperNode [2022-10-17 10:12:53,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:53,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:12:53,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:12:53,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:12:53,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,494 INFO L138 Inliner]: procedures = 691, calls = 1684, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 684 [2022-10-17 10:12:53,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:12:53,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:12:53,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:12:53,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:12:53,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,631 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:12:53,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:12:53,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:12:53,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:12:53,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (1/1) ... [2022-10-17 10:12:53,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:12:53,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:12:53,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:12:53,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:12:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2022-10-17 10:12:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2022-10-17 10:12:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:12:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-10-17 10:12:53,768 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-10-17 10:12:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-10-17 10:12:53,770 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-10-17 10:12:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-10-17 10:12:53,770 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-10-17 10:12:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:12:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-10-17 10:12:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-10-17 10:12:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 10:12:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 10:12:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:12:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:12:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:12:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:12:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:12:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-10-17 10:12:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-10-17 10:12:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-10-17 10:12:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-10-17 10:12:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-10-17 10:12:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-10-17 10:12:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-10-17 10:12:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-10-17 10:12:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:12:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:12:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:12:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:12:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:12:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-10-17 10:12:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-10-17 10:12:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-10-17 10:12:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-10-17 10:12:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:12:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2022-10-17 10:12:53,777 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2022-10-17 10:12:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2022-10-17 10:12:53,777 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2022-10-17 10:12:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-10-17 10:12:53,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-10-17 10:12:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:12:54,234 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:12:54,236 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:12:55,819 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:12:55,841 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:12:55,841 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:12:55,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:12:55 BoogieIcfgContainer [2022-10-17 10:12:55,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:12:55,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:12:55,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:12:55,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:12:55,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:12:50" (1/3) ... [2022-10-17 10:12:55,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72540e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:12:55, skipping insertion in model container [2022-10-17 10:12:55,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:53" (2/3) ... [2022-10-17 10:12:55,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72540e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:12:55, skipping insertion in model container [2022-10-17 10:12:55,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:12:55" (3/3) ... [2022-10-17 10:12:55,861 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2022-10-17 10:12:55,885 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:12:55,885 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:12:55,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:12:56,002 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@560e1e92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:12:56,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:12:56,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-10-17 10:12:56,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-17 10:12:56,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:56,033 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:56,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:12:56,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:56,044 INFO L85 PathProgramCache]: Analyzing trace with hash 928387541, now seen corresponding path program 1 times [2022-10-17 10:12:56,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:56,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323002095] [2022-10-17 10:12:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:56,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:56,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:12:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:56,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:12:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:56,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:12:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:57,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:12:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:57,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 10:12:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:57,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:12:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:57,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:12:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:12:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-17 10:12:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:57,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:12:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:57,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-17 10:12:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:57,154 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 10:12:57,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:57,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323002095] [2022-10-17 10:12:57,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323002095] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:57,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:57,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:12:57,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775499732] [2022-10-17 10:12:57,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:57,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:12:57,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:57,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:12:57,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:12:57,218 INFO L87 Difference]: Start difference. First operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:12:58,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:58,279 INFO L93 Difference]: Finished difference Result 413 states and 633 transitions. [2022-10-17 10:12:58,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:12:58,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2022-10-17 10:12:58,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:58,299 INFO L225 Difference]: With dead ends: 413 [2022-10-17 10:12:58,299 INFO L226 Difference]: Without dead ends: 230 [2022-10-17 10:12:58,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:12:58,311 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 70 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:58,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 339 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-17 10:12:58,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-10-17 10:12:58,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 180. [2022-10-17 10:12:58,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 107 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-10-17 10:12:58,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 239 transitions. [2022-10-17 10:12:58,397 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 239 transitions. Word has length 84 [2022-10-17 10:12:58,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:58,398 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 239 transitions. [2022-10-17 10:12:58,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:12:58,398 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 239 transitions. [2022-10-17 10:12:58,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-17 10:12:58,403 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:58,404 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:58,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:12:58,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:12:58,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:58,405 INFO L85 PathProgramCache]: Analyzing trace with hash -734960815, now seen corresponding path program 1 times [2022-10-17 10:12:58,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:58,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143231372] [2022-10-17 10:12:58,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:58,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:58,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:12:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:58,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:58,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:12:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:58,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:12:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:12:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 10:12:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:12:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:12:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:12:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-17 10:12:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:12:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-17 10:12:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-10-17 10:12:59,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:59,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143231372] [2022-10-17 10:12:59,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143231372] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:12:59,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775592752] [2022-10-17 10:12:59,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:59,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:12:59,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:12:59,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:12:59,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:12:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:59,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:12:59,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:12:59,895 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 10:12:59,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:12:59,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775592752] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:59,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:12:59,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-10-17 10:12:59,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905611319] [2022-10-17 10:12:59,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:59,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:12:59,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:59,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:12:59,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:12:59,900 INFO L87 Difference]: Start difference. First operand 180 states and 239 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:13:00,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:13:00,249 INFO L93 Difference]: Finished difference Result 325 states and 446 transitions. [2022-10-17 10:13:00,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:13:00,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2022-10-17 10:13:00,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:13:00,254 INFO L225 Difference]: With dead ends: 325 [2022-10-17 10:13:00,254 INFO L226 Difference]: Without dead ends: 182 [2022-10-17 10:13:00,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:13:00,257 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 245 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:13:00,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 706 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:13:00,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-10-17 10:13:00,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-10-17 10:13:00,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (66), 56 states have call predecessors, (66), 56 states have call successors, (66) [2022-10-17 10:13:00,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 250 transitions. [2022-10-17 10:13:00,291 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 250 transitions. Word has length 84 [2022-10-17 10:13:00,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:13:00,292 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 250 transitions. [2022-10-17 10:13:00,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:13:00,292 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 250 transitions. [2022-10-17 10:13:00,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-17 10:13:00,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:13:00,295 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:13:00,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:00,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:13:00,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:13:00,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:00,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1141222523, now seen corresponding path program 1 times [2022-10-17 10:13:00,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:00,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347787213] [2022-10-17 10:13:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:00,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:00,597 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 10:13:00,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938591093] [2022-10-17 10:13:00,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:00,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:13:00,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:00,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:13:00,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:13:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:01,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 2272 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:13:01,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-17 10:13:01,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:13:01,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:01,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347787213] [2022-10-17 10:13:01,244 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 10:13:01,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938591093] [2022-10-17 10:13:01,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938591093] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:01,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:01,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:13:01,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829120553] [2022-10-17 10:13:01,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:01,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:13:01,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:01,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:13:01,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:13:01,253 INFO L87 Difference]: Start difference. First operand 182 states and 250 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-10-17 10:13:01,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:13:01,840 INFO L93 Difference]: Finished difference Result 317 states and 440 transitions. [2022-10-17 10:13:01,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:13:01,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2022-10-17 10:13:01,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:13:01,850 INFO L225 Difference]: With dead ends: 317 [2022-10-17 10:13:01,850 INFO L226 Difference]: Without dead ends: 182 [2022-10-17 10:13:01,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:13:01,855 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 265 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:13:01,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 934 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:13:01,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-10-17 10:13:01,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-10-17 10:13:01,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2022-10-17 10:13:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2022-10-17 10:13:01,908 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 99 [2022-10-17 10:13:01,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:13:01,909 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2022-10-17 10:13:01,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-10-17 10:13:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2022-10-17 10:13:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-17 10:13:01,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:13:01,923 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2022-10-17 10:13:01,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:02,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-10-17 10:13:02,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:13:02,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:02,145 INFO L85 PathProgramCache]: Analyzing trace with hash 232916013, now seen corresponding path program 2 times [2022-10-17 10:13:02,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:02,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962364413] [2022-10-17 10:13:02,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:02,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:02,236 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 10:13:02,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728263506] [2022-10-17 10:13:02,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:13:02,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:13:02,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:02,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:13:02,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:13:03,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:13:03,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:13:03,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 10:13:03,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:03,391 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-10-17 10:13:03,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:13:03,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:13:03,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962364413] [2022-10-17 10:13:03,392 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 10:13:03,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728263506] [2022-10-17 10:13:03,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728263506] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:13:03,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:13:03,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 10:13:03,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685223108] [2022-10-17 10:13:03,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:13:03,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 10:13:03,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:13:03,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:13:03,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:13:03,395 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-10-17 10:13:04,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:13:04,267 INFO L93 Difference]: Finished difference Result 326 states and 450 transitions. [2022-10-17 10:13:04,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:13:04,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 114 [2022-10-17 10:13:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:13:04,271 INFO L225 Difference]: With dead ends: 326 [2022-10-17 10:13:04,274 INFO L226 Difference]: Without dead ends: 194 [2022-10-17 10:13:04,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:13:04,277 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 283 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:13:04,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 1236 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-17 10:13:04,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-10-17 10:13:04,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2022-10-17 10:13:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 113 states have (on average 1.1858407079646018) internal successors, (134), 115 states have internal predecessors, (134), 62 states have call successors, (62), 17 states have call predecessors, (62), 18 states have return successors, (68), 61 states have call predecessors, (68), 61 states have call successors, (68) [2022-10-17 10:13:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 264 transitions. [2022-10-17 10:13:04,322 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 264 transitions. Word has length 114 [2022-10-17 10:13:04,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:13:04,326 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 264 transitions. [2022-10-17 10:13:04,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-10-17 10:13:04,326 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 264 transitions. [2022-10-17 10:13:04,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-17 10:13:04,329 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:13:04,330 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:13:04,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:13:04,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:13:04,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:13:04,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:13:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash -159680425, now seen corresponding path program 1 times [2022-10-17 10:13:04,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:13:04,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124843267] [2022-10-17 10:13:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:04,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:13:04,663 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 10:13:04,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119354833] [2022-10-17 10:13:04,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:13:04,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:13:04,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:13:04,665 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:13:04,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79fcf5cf-27d6-481f-8520-5a991fad2b9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:13:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:13:06,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 2695 conjuncts, 331 conjunts are in the unsatisfiable core [2022-10-17 10:13:06,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:13:06,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 10:13:06,491 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2022-10-17 10:13:07,395 INFO L356 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-10-17 10:13:07,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2022-10-17 10:13:07,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 10:13:07,785 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-10-17 10:13:07,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-10-17 10:13:11,637 INFO L356 Elim1Store]: treesize reduction 276, result has 36.0 percent of original size [2022-10-17 10:13:11,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 193 treesize of output 360 [2022-10-17 10:13:11,669 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 10:13:11,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:13:11,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:13:11,798 INFO L356 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2022-10-17 10:13:11,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 167 treesize of output 208