./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro --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 b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 --- 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-8393723 [2022-11-18 19:41:29,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:41:29,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:41:29,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:41:29,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:41:29,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:41:29,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:41:29,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:41:29,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:41:29,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:41:29,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:41:29,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:41:29,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:41:29,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:41:29,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:41:29,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:41:29,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:41:29,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:41:29,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:41:29,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:41:29,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:41:29,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:41:29,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:41:29,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:41:29,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:41:29,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:41:29,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:41:29,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:41:29,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:41:29,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:41:29,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:41:29,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:41:29,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:41:29,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:41:29,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:41:29,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:41:29,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:41:29,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:41:29,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:41:29,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:41:29,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:41:29,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:41:29,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:41:29,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:41:29,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:41:29,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:41:29,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:41:29,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:41:29,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:41:29,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:41:29,933 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:41:29,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:41:29,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:41:29,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:41:29,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:41:29,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:41:29,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:41:29,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:41:29,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:41:29,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:41:29,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:41:29,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:41:29,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:41:29,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:41:29,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:41:29,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:41:29,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:41:29,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:41:29,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:41:29,939 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:41:29,939 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:41:29,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:41:29,946 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_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 [2022-11-18 19:41:30,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:41:30,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:41:30,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:41:30,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:41:30,344 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:41:30,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2022-11-18 19:41:30,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/data/7ac0ead89/cdfc8341bde64fb19530ba433c710d04/FLAG7a254ffd3 [2022-11-18 19:41:31,360 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:41:31,367 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2022-11-18 19:41:31,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/data/7ac0ead89/cdfc8341bde64fb19530ba433c710d04/FLAG7a254ffd3 [2022-11-18 19:41:31,782 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/data/7ac0ead89/cdfc8341bde64fb19530ba433c710d04 [2022-11-18 19:41:31,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:41:31,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:41:31,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:41:31,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:41:31,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:41:31,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:41:31" (1/1) ... [2022-11-18 19:41:31,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@925e698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:31, skipping insertion in model container [2022-11-18 19:41:31,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:41:31" (1/1) ... [2022-11-18 19:41:31,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:41:31,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:41:32,227 WARN L234 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_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2022-11-18 19:41:32,235 WARN L234 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_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2022-11-18 19:41:33,117 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 19:41:33,211 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,212 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,213 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,214 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,216 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,249 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,250 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,251 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,252 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,718 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 19:41:33,720 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 19:41:33,721 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 19:41:33,722 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 19:41:33,723 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 19:41:33,724 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 19:41:33,725 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 19:41:33,726 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 19:41:33,727 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 19:41:33,727 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 19:41:33,900 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,901 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:33,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:41:33,984 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:41:34,000 WARN L234 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_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2022-11-18 19:41:34,001 WARN L234 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_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2022-11-18 19:41:34,040 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 19:41:34,056 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,057 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,057 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,058 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,059 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,066 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,067 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,068 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,069 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,106 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 19:41:34,142 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 19:41:34,143 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 19:41:34,144 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 19:41:34,145 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 19:41:34,146 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 19:41:34,146 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 19:41:34,147 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 19:41:34,147 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 19:41:34,148 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 19:41:34,180 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,181 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 19:41:34,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:41:34,475 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:41:34,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34 WrapperNode [2022-11-18 19:41:34,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:41:34,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:41:34,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:41:34,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:41:34,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,706 INFO L138 Inliner]: procedures = 689, calls = 1535, calls flagged for inlining = 55, calls inlined = 11, statements flattened = 691 [2022-11-18 19:41:34,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:41:34,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:41:34,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:41:34,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:41:34,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,808 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:41:34,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:41:34,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:41:34,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:41:34,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (1/1) ... [2022-11-18 19:41:34,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:41:34,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:34,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:41:34,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:41:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-18 19:41:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-18 19:41:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:41:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-18 19:41:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-18 19:41:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-18 19:41:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-18 19:41:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 19:41:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 19:41:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:41:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-18 19:41:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-18 19:41:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 19:41:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 19:41:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:41:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:41:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-18 19:41:34,947 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-18 19:41:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:41:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:41:34,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:41:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 19:41:34,948 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 19:41:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-18 19:41:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-18 19:41:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-18 19:41:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-18 19:41:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-18 19:41:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-18 19:41:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:41:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:41:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:41:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:41:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:41:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 19:41:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 19:41:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-18 19:41:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-18 19:41:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:41:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2022-11-18 19:41:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2022-11-18 19:41:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-18 19:41:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-18 19:41:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:41:35,337 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:41:35,350 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:41:36,733 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:41:36,748 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:41:36,749 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:41:36,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:41:36 BoogieIcfgContainer [2022-11-18 19:41:36,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:41:36,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:41:36,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:41:36,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:41:36,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:41:31" (1/3) ... [2022-11-18 19:41:36,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539fa7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:41:36, skipping insertion in model container [2022-11-18 19:41:36,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:34" (2/3) ... [2022-11-18 19:41:36,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539fa7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:41:36, skipping insertion in model container [2022-11-18 19:41:36,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:41:36" (3/3) ... [2022-11-18 19:41:36,768 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2022-11-18 19:41:36,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:41:36,791 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:41:36,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:41:36,911 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;@798fd05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:41:36,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:41:36,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 112 states have (on average 1.2232142857142858) internal successors, (137), 113 states have internal predecessors, (137), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-11-18 19:41:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-18 19:41:36,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:36,942 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-18 19:41:36,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:36,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:36,952 INFO L85 PathProgramCache]: Analyzing trace with hash -626335346, now seen corresponding path program 1 times [2022-11-18 19:41:36,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:36,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983060108] [2022-11-18 19:41:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:36,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:37,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:37,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983060108] [2022-11-18 19:41:37,705 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:41:37,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726433465] [2022-11-18 19:41:37,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:37,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:37,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:37,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:37,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:41:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:38,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 2284 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 19:41:38,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-18 19:41:38,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:38,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726433465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:38,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:38,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:41:38,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777633775] [2022-11-18 19:41:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:38,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:41:38,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:38,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:41:38,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:41:38,571 INFO L87 Difference]: Start difference. First operand has 170 states, 112 states have (on average 1.2232142857142858) internal successors, (137), 113 states have internal predecessors, (137), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-18 19:41:38,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:38,653 INFO L93 Difference]: Finished difference Result 329 states and 449 transitions. [2022-11-18 19:41:38,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:41:38,656 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 110 [2022-11-18 19:41:38,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:38,670 INFO L225 Difference]: With dead ends: 329 [2022-11-18 19:41:38,670 INFO L226 Difference]: Without dead ends: 165 [2022-11-18 19:41:38,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:41:38,685 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:38,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:41:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-18 19:41:38,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-18 19:41:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 108 states have (on average 1.2037037037037037) internal successors, (130), 109 states have internal predecessors, (130), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-18 19:41:38,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 209 transitions. [2022-11-18 19:41:38,757 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 209 transitions. Word has length 110 [2022-11-18 19:41:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:38,759 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 209 transitions. [2022-11-18 19:41:38,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-18 19:41:38,759 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 209 transitions. [2022-11-18 19:41:38,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-18 19:41:38,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:38,763 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-18 19:41:38,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:38,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-18 19:41:38,974 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:38,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:38,974 INFO L85 PathProgramCache]: Analyzing trace with hash 726994572, now seen corresponding path program 1 times [2022-11-18 19:41:38,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:38,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913667382] [2022-11-18 19:41:38,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:38,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:39,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:39,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913667382] [2022-11-18 19:41:39,175 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:41:39,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796514669] [2022-11-18 19:41:39,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:39,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:39,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:39,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:39,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:41:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:39,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 2284 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:41:39,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-18 19:41:39,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:39,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796514669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:39,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:39,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:41:39,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619541237] [2022-11-18 19:41:39,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:39,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:41:39,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:39,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:41:39,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:41:39,899 INFO L87 Difference]: Start difference. First operand 165 states and 209 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-18 19:41:40,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:40,212 INFO L93 Difference]: Finished difference Result 288 states and 367 transitions. [2022-11-18 19:41:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:41:40,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 110 [2022-11-18 19:41:40,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:40,221 INFO L225 Difference]: With dead ends: 288 [2022-11-18 19:41:40,223 INFO L226 Difference]: Without dead ends: 165 [2022-11-18 19:41:40,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:41:40,229 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 220 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:40,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 647 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:41:40,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-18 19:41:40,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-18 19:41:40,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 108 states have (on average 1.1944444444444444) internal successors, (129), 109 states have internal predecessors, (129), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-18 19:41:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 208 transitions. [2022-11-18 19:41:40,259 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 208 transitions. Word has length 110 [2022-11-18 19:41:40,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:40,263 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 208 transitions. [2022-11-18 19:41:40,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-18 19:41:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 208 transitions. [2022-11-18 19:41:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-18 19:41:40,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:40,278 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:40,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:40,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-18 19:41:40,490 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:40,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:40,490 INFO L85 PathProgramCache]: Analyzing trace with hash 691144694, now seen corresponding path program 1 times [2022-11-18 19:41:40,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:40,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579414734] [2022-11-18 19:41:40,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:40,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:40,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:40,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579414734] [2022-11-18 19:41:40,712 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:41:40,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774327681] [2022-11-18 19:41:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:40,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:40,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:40,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:40,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:41:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:41,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:41:41,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-18 19:41:41,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:41,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774327681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:41,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:41,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:41:41,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307989919] [2022-11-18 19:41:41,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:41,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:41:41,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:41,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:41:41,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:41:41,508 INFO L87 Difference]: Start difference. First operand 165 states and 208 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-18 19:41:41,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:41,759 INFO L93 Difference]: Finished difference Result 307 states and 396 transitions. [2022-11-18 19:41:41,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:41:41,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 118 [2022-11-18 19:41:41,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:41,765 INFO L225 Difference]: With dead ends: 307 [2022-11-18 19:41:41,766 INFO L226 Difference]: Without dead ends: 167 [2022-11-18 19:41:41,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:41:41,770 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 71 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:41,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1103 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:41:41,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-18 19:41:41,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-11-18 19:41:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 109 states have (on average 1.1926605504587156) internal successors, (130), 111 states have internal predecessors, (130), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-11-18 19:41:41,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 212 transitions. [2022-11-18 19:41:41,811 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 212 transitions. Word has length 118 [2022-11-18 19:41:41,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:41,812 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 212 transitions. [2022-11-18 19:41:41,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-18 19:41:41,813 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 212 transitions. [2022-11-18 19:41:41,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 19:41:41,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:41,816 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:41,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:42,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:42,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:42,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:42,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1403025034, now seen corresponding path program 1 times [2022-11-18 19:41:42,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:42,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280248327] [2022-11-18 19:41:42,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:42,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:42,131 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:42,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842853221] [2022-11-18 19:41:42,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:42,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:42,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:42,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:42,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:41:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:42,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 2470 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:41:42,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-18 19:41:42,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:42,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:42,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280248327] [2022-11-18 19:41:42,816 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:42,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842853221] [2022-11-18 19:41:42,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842853221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:42,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:42,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:41:42,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339453316] [2022-11-18 19:41:42,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:42,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:41:42,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:42,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:41:42,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:41:42,820 INFO L87 Difference]: Start difference. First operand 167 states and 212 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 19:41:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:42,868 INFO L93 Difference]: Finished difference Result 295 states and 383 transitions. [2022-11-18 19:41:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:41:42,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 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 133 [2022-11-18 19:41:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:42,871 INFO L225 Difference]: With dead ends: 295 [2022-11-18 19:41:42,872 INFO L226 Difference]: Without dead ends: 172 [2022-11-18 19:41:42,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:42,874 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 10 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:42,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 611 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:41:42,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-18 19:41:42,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2022-11-18 19:41:42,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 113 states have internal predecessors, (132), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-11-18 19:41:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2022-11-18 19:41:42,895 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 133 [2022-11-18 19:41:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:42,896 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2022-11-18 19:41:42,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 19:41:42,896 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2022-11-18 19:41:42,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 19:41:42,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:42,899 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:42,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:43,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:43,110 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:43,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:43,111 INFO L85 PathProgramCache]: Analyzing trace with hash -558549624, now seen corresponding path program 1 times [2022-11-18 19:41:43,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:43,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098313979] [2022-11-18 19:41:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:43,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:43,220 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:43,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186599860] [2022-11-18 19:41:43,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:43,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:43,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:43,222 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:43,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:41:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:43,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:41:43,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:44,040 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-18 19:41:44,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:44,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:44,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098313979] [2022-11-18 19:41:44,043 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:44,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186599860] [2022-11-18 19:41:44,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186599860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:44,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:44,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:41:44,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636298781] [2022-11-18 19:41:44,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:44,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:41:44,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:44,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:41:44,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:41:44,049 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-18 19:41:44,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:44,389 INFO L93 Difference]: Finished difference Result 297 states and 378 transitions. [2022-11-18 19:41:44,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:41:44,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 133 [2022-11-18 19:41:44,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:44,395 INFO L225 Difference]: With dead ends: 297 [2022-11-18 19:41:44,395 INFO L226 Difference]: Without dead ends: 169 [2022-11-18 19:41:44,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:41:44,397 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 242 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:44,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 765 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:41:44,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-18 19:41:44,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-11-18 19:41:44,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 113 states have internal predecessors, (131), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-11-18 19:41:44,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 213 transitions. [2022-11-18 19:41:44,431 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 213 transitions. Word has length 133 [2022-11-18 19:41:44,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:44,434 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 213 transitions. [2022-11-18 19:41:44,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-18 19:41:44,434 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 213 transitions. [2022-11-18 19:41:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-18 19:41:44,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:44,439 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:44,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:44,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:44,650 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:44,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:44,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1813374097, now seen corresponding path program 1 times [2022-11-18 19:41:44,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:44,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718085470] [2022-11-18 19:41:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:44,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:44,740 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:44,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388966481] [2022-11-18 19:41:44,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:44,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:44,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:44,742 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:44,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:41:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:45,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 2547 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:41:45,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-18 19:41:45,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:45,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:45,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718085470] [2022-11-18 19:41:45,539 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:45,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388966481] [2022-11-18 19:41:45,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388966481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:45,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:45,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:41:45,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239279288] [2022-11-18 19:41:45,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:45,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:41:45,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:45,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:41:45,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:41:45,542 INFO L87 Difference]: Start difference. First operand 169 states and 213 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-18 19:41:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:45,828 INFO L93 Difference]: Finished difference Result 310 states and 395 transitions. [2022-11-18 19:41:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:41:45,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 149 [2022-11-18 19:41:45,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:45,831 INFO L225 Difference]: With dead ends: 310 [2022-11-18 19:41:45,831 INFO L226 Difference]: Without dead ends: 169 [2022-11-18 19:41:45,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:41:45,833 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 109 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:45,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1147 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:41:45,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-18 19:41:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-11-18 19:41:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 113 states have internal predecessors, (131), 40 states have call successors, (40), 16 states have call predecessors, (40), 17 states have return successors, (41), 39 states have call predecessors, (41), 39 states have call successors, (41) [2022-11-18 19:41:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 212 transitions. [2022-11-18 19:41:45,852 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 212 transitions. Word has length 149 [2022-11-18 19:41:45,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:45,854 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 212 transitions. [2022-11-18 19:41:45,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-18 19:41:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 212 transitions. [2022-11-18 19:41:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-18 19:41:45,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:45,859 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:45,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:46,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 19:41:46,071 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:46,072 INFO L85 PathProgramCache]: Analyzing trace with hash 770964543, now seen corresponding path program 2 times [2022-11-18 19:41:46,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:46,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051352703] [2022-11-18 19:41:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:46,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:46,185 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:46,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492535527] [2022-11-18 19:41:46,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:41:46,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:46,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:46,188 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:46,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:41:47,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:41:47,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:41:47,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 2688 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:41:47,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:47,443 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-11-18 19:41:47,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:47,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:47,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051352703] [2022-11-18 19:41:47,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:47,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492535527] [2022-11-18 19:41:47,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492535527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:47,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:47,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:41:47,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994186566] [2022-11-18 19:41:47,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:47,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:41:47,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:47,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:41:47,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:41:47,447 INFO L87 Difference]: Start difference. First operand 169 states and 212 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-18 19:41:47,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:47,602 INFO L93 Difference]: Finished difference Result 276 states and 344 transitions. [2022-11-18 19:41:47,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:41:47,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) Word has length 164 [2022-11-18 19:41:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:47,605 INFO L225 Difference]: With dead ends: 276 [2022-11-18 19:41:47,605 INFO L226 Difference]: Without dead ends: 167 [2022-11-18 19:41:47,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:41:47,607 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 27 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:47,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 867 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-18 19:41:47,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-11-18 19:41:47,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 110 states have (on average 1.1727272727272726) internal successors, (129), 111 states have internal predecessors, (129), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-18 19:41:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 208 transitions. [2022-11-18 19:41:47,619 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 208 transitions. Word has length 164 [2022-11-18 19:41:47,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:47,619 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 208 transitions. [2022-11-18 19:41:47,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-18 19:41:47,620 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 208 transitions. [2022-11-18 19:41:47,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-18 19:41:47,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:47,623 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:47,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:47,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:47,840 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:47,841 INFO L85 PathProgramCache]: Analyzing trace with hash -534191969, now seen corresponding path program 1 times [2022-11-18 19:41:47,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:47,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130846323] [2022-11-18 19:41:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:47,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:47,938 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:47,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [664022725] [2022-11-18 19:41:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:47,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:47,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:47,940 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:47,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:41:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:48,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:41:48,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-18 19:41:48,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:48,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:48,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130846323] [2022-11-18 19:41:48,946 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:48,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664022725] [2022-11-18 19:41:48,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664022725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:48,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:48,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:41:48,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452497227] [2022-11-18 19:41:48,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:48,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:41:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:48,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:41:48,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:41:48,949 INFO L87 Difference]: Start difference. First operand 167 states and 208 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 19:41:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:49,331 INFO L93 Difference]: Finished difference Result 308 states and 389 transitions. [2022-11-18 19:41:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:41:49,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 194 [2022-11-18 19:41:49,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:49,334 INFO L225 Difference]: With dead ends: 308 [2022-11-18 19:41:49,334 INFO L226 Difference]: Without dead ends: 185 [2022-11-18 19:41:49,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:41:49,335 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 23 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:49,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 893 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:41:49,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-18 19:41:49,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 171. [2022-11-18 19:41:49,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 114 states have (on average 1.1754385964912282) internal successors, (134), 115 states have internal predecessors, (134), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-18 19:41:49,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 213 transitions. [2022-11-18 19:41:49,348 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 213 transitions. Word has length 194 [2022-11-18 19:41:49,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:49,348 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 213 transitions. [2022-11-18 19:41:49,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 19:41:49,349 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 213 transitions. [2022-11-18 19:41:49,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-18 19:41:49,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:49,352 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:49,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:49,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-18 19:41:49,565 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:49,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1304925535, now seen corresponding path program 1 times [2022-11-18 19:41:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:49,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185732857] [2022-11-18 19:41:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:49,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:49,688 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:49,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207985554] [2022-11-18 19:41:49,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:49,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:49,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:49,691 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:49,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:41:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:50,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 2967 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:41:50,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:50,529 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-18 19:41:50,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:50,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:50,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185732857] [2022-11-18 19:41:50,530 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:50,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207985554] [2022-11-18 19:41:50,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207985554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:50,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:50,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:41:50,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494671276] [2022-11-18 19:41:50,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:50,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:41:50,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:50,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:41:50,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:41:50,533 INFO L87 Difference]: Start difference. First operand 171 states and 213 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 19:41:50,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:50,571 INFO L93 Difference]: Finished difference Result 302 states and 379 transitions. [2022-11-18 19:41:50,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:41:50,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 194 [2022-11-18 19:41:50,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:50,574 INFO L225 Difference]: With dead ends: 302 [2022-11-18 19:41:50,574 INFO L226 Difference]: Without dead ends: 175 [2022-11-18 19:41:50,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:50,575 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:50,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 604 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:41:50,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-18 19:41:50,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2022-11-18 19:41:50,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 116 states have (on average 1.1724137931034482) internal successors, (136), 117 states have internal predecessors, (136), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-18 19:41:50,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 215 transitions. [2022-11-18 19:41:50,587 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 215 transitions. Word has length 194 [2022-11-18 19:41:50,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:50,588 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 215 transitions. [2022-11-18 19:41:50,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 19:41:50,589 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 215 transitions. [2022-11-18 19:41:50,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-18 19:41:50,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:50,592 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:50,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:50,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:50,805 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:50,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:50,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1891201757, now seen corresponding path program 1 times [2022-11-18 19:41:50,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:50,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039721738] [2022-11-18 19:41:50,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:50,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:50,929 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:50,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [363381819] [2022-11-18 19:41:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:50,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:50,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:50,942 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:50,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 19:41:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:51,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 2962 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-18 19:41:51,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:51,950 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1163 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_1163) |c_#memory_int|)) is different from true [2022-11-18 19:41:52,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:41:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-18 19:41:52,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:52,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:52,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039721738] [2022-11-18 19:41:52,403 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:52,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363381819] [2022-11-18 19:41:52,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363381819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:52,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:52,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-18 19:41:52,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663273635] [2022-11-18 19:41:52,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:52,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 19:41:52,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:52,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 19:41:52,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=122, Unknown=11, NotChecked=22, Total=182 [2022-11-18 19:41:52,406 INFO L87 Difference]: Start difference. First operand 173 states and 215 transitions. Second operand has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 13 states have internal predecessors, (93), 7 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2022-11-18 19:41:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:53,788 INFO L93 Difference]: Finished difference Result 341 states and 433 transitions. [2022-11-18 19:41:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:41:53,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 13 states have internal predecessors, (93), 7 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 194 [2022-11-18 19:41:53,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:53,791 INFO L225 Difference]: With dead ends: 341 [2022-11-18 19:41:53,791 INFO L226 Difference]: Without dead ends: 212 [2022-11-18 19:41:53,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=235, Unknown=16, NotChecked=32, Total=342 [2022-11-18 19:41:53,793 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 157 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 849 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:53,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 843 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 943 Invalid, 0 Unknown, 849 Unchecked, 1.1s Time] [2022-11-18 19:41:53,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-18 19:41:53,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 189. [2022-11-18 19:41:53,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 130 states have (on average 1.1846153846153846) internal successors, (154), 131 states have internal predecessors, (154), 40 states have call successors, (40), 16 states have call predecessors, (40), 18 states have return successors, (44), 41 states have call predecessors, (44), 39 states have call successors, (44) [2022-11-18 19:41:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 238 transitions. [2022-11-18 19:41:53,811 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 238 transitions. Word has length 194 [2022-11-18 19:41:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:53,812 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 238 transitions. [2022-11-18 19:41:53,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 13 states have internal predecessors, (93), 7 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2022-11-18 19:41:53,813 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 238 transitions. [2022-11-18 19:41:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-18 19:41:53,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:53,816 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:53,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:54,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:54,037 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:54,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:54,037 INFO L85 PathProgramCache]: Analyzing trace with hash 529953845, now seen corresponding path program 1 times [2022-11-18 19:41:54,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:54,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424268843] [2022-11-18 19:41:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:54,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:54,140 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:54,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654502250] [2022-11-18 19:41:54,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:54,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:54,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:54,142 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:54,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 19:41:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:54,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 2974 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-18 19:41:54,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-18 19:41:55,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:55,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:55,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424268843] [2022-11-18 19:41:55,090 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:55,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654502250] [2022-11-18 19:41:55,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654502250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:55,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:55,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 19:41:55,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924732858] [2022-11-18 19:41:55,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:55,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:41:55,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:55,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:41:55,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:41:55,092 INFO L87 Difference]: Start difference. First operand 189 states and 238 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 10 states have internal predecessors, (101), 3 states have call successors, (25), 2 states have call predecessors, (25), 6 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-18 19:41:55,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:55,403 INFO L93 Difference]: Finished difference Result 320 states and 405 transitions. [2022-11-18 19:41:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:41:55,404 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 10 states have internal predecessors, (101), 3 states have call successors, (25), 2 states have call predecessors, (25), 6 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) Word has length 212 [2022-11-18 19:41:55,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:55,407 INFO L225 Difference]: With dead ends: 320 [2022-11-18 19:41:55,407 INFO L226 Difference]: Without dead ends: 197 [2022-11-18 19:41:55,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:41:55,409 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:55,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2430 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:41:55,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-18 19:41:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2022-11-18 19:41:55,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 136 states have (on average 1.1838235294117647) internal successors, (161), 138 states have internal predecessors, (161), 40 states have call successors, (40), 16 states have call predecessors, (40), 19 states have return successors, (47), 41 states have call predecessors, (47), 39 states have call successors, (47) [2022-11-18 19:41:55,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 248 transitions. [2022-11-18 19:41:55,425 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 248 transitions. Word has length 212 [2022-11-18 19:41:55,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:55,426 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 248 transitions. [2022-11-18 19:41:55,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 10 states have internal predecessors, (101), 3 states have call successors, (25), 2 states have call predecessors, (25), 6 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-18 19:41:55,427 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 248 transitions. [2022-11-18 19:41:55,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-18 19:41:55,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:55,430 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:55,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:55,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 19:41:55,644 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:55,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:55,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1820193313, now seen corresponding path program 1 times [2022-11-18 19:41:55,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:55,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818572115] [2022-11-18 19:41:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:55,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:55,749 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:55,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372992668] [2022-11-18 19:41:55,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:55,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:55,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:55,751 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:55,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 19:41:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:56,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 2965 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 19:41:56,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:56,600 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-18 19:41:56,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:56,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:56,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818572115] [2022-11-18 19:41:56,601 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:56,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372992668] [2022-11-18 19:41:56,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372992668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:56,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:56,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:41:56,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539644761] [2022-11-18 19:41:56,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:56,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:41:56,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:56,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:41:56,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:56,604 INFO L87 Difference]: Start difference. First operand 196 states and 248 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 19:41:56,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:56,661 INFO L93 Difference]: Finished difference Result 362 states and 463 transitions. [2022-11-18 19:41:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:41:56,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 194 [2022-11-18 19:41:56,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:56,664 INFO L225 Difference]: With dead ends: 362 [2022-11-18 19:41:56,664 INFO L226 Difference]: Without dead ends: 210 [2022-11-18 19:41:56,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:41:56,666 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 8 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:56,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 842 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:41:56,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-18 19:41:56,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 204. [2022-11-18 19:41:56,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 144 states have (on average 1.1875) internal successors, (171), 146 states have internal predecessors, (171), 40 states have call successors, (40), 16 states have call predecessors, (40), 19 states have return successors, (47), 41 states have call predecessors, (47), 39 states have call successors, (47) [2022-11-18 19:41:56,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 258 transitions. [2022-11-18 19:41:56,687 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 258 transitions. Word has length 194 [2022-11-18 19:41:56,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:56,688 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 258 transitions. [2022-11-18 19:41:56,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 19:41:56,689 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 258 transitions. [2022-11-18 19:41:56,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-18 19:41:56,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:56,694 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:56,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:56,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:56,895 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:56,895 INFO L85 PathProgramCache]: Analyzing trace with hash 181491113, now seen corresponding path program 2 times [2022-11-18 19:41:56,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:56,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781898852] [2022-11-18 19:41:56,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:56,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:56,997 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:41:56,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152475292] [2022-11-18 19:41:56,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:41:56,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:41:56,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:56,999 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:41:57,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 19:41:58,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:41:58,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:41:58,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-18 19:41:58,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-18 19:41:59,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:41:59,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:59,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781898852] [2022-11-18 19:41:59,330 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:41:59,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152475292] [2022-11-18 19:41:59,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152475292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:59,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:59,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:41:59,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965589129] [2022-11-18 19:41:59,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:59,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:41:59,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:59,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:41:59,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:41:59,333 INFO L87 Difference]: Start difference. First operand 204 states and 258 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 7 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2022-11-18 19:42:01,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:01,185 INFO L93 Difference]: Finished difference Result 456 states and 594 transitions. [2022-11-18 19:42:01,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:42:01,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 7 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 200 [2022-11-18 19:42:01,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:01,189 INFO L225 Difference]: With dead ends: 456 [2022-11-18 19:42:01,189 INFO L226 Difference]: Without dead ends: 292 [2022-11-18 19:42:01,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:42:01,193 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 257 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:01,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 795 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-18 19:42:01,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-11-18 19:42:01,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 217. [2022-11-18 19:42:01,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 156 states have (on average 1.1923076923076923) internal successors, (186), 158 states have internal predecessors, (186), 40 states have call successors, (40), 16 states have call predecessors, (40), 20 states have return successors, (50), 42 states have call predecessors, (50), 39 states have call successors, (50) [2022-11-18 19:42:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 276 transitions. [2022-11-18 19:42:01,212 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 276 transitions. Word has length 200 [2022-11-18 19:42:01,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:01,213 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 276 transitions. [2022-11-18 19:42:01,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 7 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2022-11-18 19:42:01,213 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 276 transitions. [2022-11-18 19:42:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-18 19:42:01,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:01,215 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:01,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:01,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:01,427 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:42:01,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:01,427 INFO L85 PathProgramCache]: Analyzing trace with hash 654991911, now seen corresponding path program 1 times [2022-11-18 19:42:01,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:01,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620194847] [2022-11-18 19:42:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:01,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:01,524 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:42:01,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536427334] [2022-11-18 19:42:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:01,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:01,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:01,526 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:01,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 19:42:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:02,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 2971 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:42:02,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-18 19:42:02,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:42:02,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:02,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620194847] [2022-11-18 19:42:02,298 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:42:02,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536427334] [2022-11-18 19:42:02,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536427334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:02,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:02,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:42:02,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066521167] [2022-11-18 19:42:02,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:02,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:42:02,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:02,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:42:02,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:42:02,305 INFO L87 Difference]: Start difference. First operand 217 states and 276 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 19:42:02,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:02,348 INFO L93 Difference]: Finished difference Result 388 states and 496 transitions. [2022-11-18 19:42:02,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:42:02,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 200 [2022-11-18 19:42:02,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:02,353 INFO L225 Difference]: With dead ends: 388 [2022-11-18 19:42:02,353 INFO L226 Difference]: Without dead ends: 215 [2022-11-18 19:42:02,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:42:02,360 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 2 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:02,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 606 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:42:02,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-11-18 19:42:02,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 207. [2022-11-18 19:42:02,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 146 states have (on average 1.1712328767123288) internal successors, (171), 149 states have internal predecessors, (171), 40 states have call successors, (40), 16 states have call predecessors, (40), 20 states have return successors, (50), 41 states have call predecessors, (50), 39 states have call successors, (50) [2022-11-18 19:42:02,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 261 transitions. [2022-11-18 19:42:02,409 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 261 transitions. Word has length 200 [2022-11-18 19:42:02,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:02,410 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 261 transitions. [2022-11-18 19:42:02,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-18 19:42:02,410 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 261 transitions. [2022-11-18 19:42:02,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-18 19:42:02,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:02,414 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:02,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:02,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 19:42:02,627 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:42:02,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:02,628 INFO L85 PathProgramCache]: Analyzing trace with hash 949884039, now seen corresponding path program 1 times [2022-11-18 19:42:02,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:02,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408372469] [2022-11-18 19:42:02,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:02,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:02,771 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:42:02,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796445979] [2022-11-18 19:42:02,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:02,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:02,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:02,774 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:02,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 19:42:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:03,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:42:03,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-18 19:42:03,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:42:03,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:03,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408372469] [2022-11-18 19:42:03,723 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:42:03,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796445979] [2022-11-18 19:42:03,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796445979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:03,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:03,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:42:03,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595981995] [2022-11-18 19:42:03,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:03,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:42:03,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:03,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:42:03,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:42:03,726 INFO L87 Difference]: Start difference. First operand 207 states and 261 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-18 19:42:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:04,011 INFO L93 Difference]: Finished difference Result 370 states and 477 transitions. [2022-11-18 19:42:04,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:42:04,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 208 [2022-11-18 19:42:04,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:04,014 INFO L225 Difference]: With dead ends: 370 [2022-11-18 19:42:04,014 INFO L226 Difference]: Without dead ends: 207 [2022-11-18 19:42:04,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:42:04,016 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 10 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:04,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 751 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:42:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-18 19:42:04,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-11-18 19:42:04,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 146 states have (on average 1.1575342465753424) internal successors, (169), 149 states have internal predecessors, (169), 40 states have call successors, (40), 16 states have call predecessors, (40), 20 states have return successors, (50), 41 states have call predecessors, (50), 39 states have call successors, (50) [2022-11-18 19:42:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 259 transitions. [2022-11-18 19:42:04,032 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 259 transitions. Word has length 208 [2022-11-18 19:42:04,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:04,033 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 259 transitions. [2022-11-18 19:42:04,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-18 19:42:04,033 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 259 transitions. [2022-11-18 19:42:04,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-18 19:42:04,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:04,035 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:04,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:04,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 19:42:04,248 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:42:04,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:04,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1068325513, now seen corresponding path program 1 times [2022-11-18 19:42:04,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:04,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963827213] [2022-11-18 19:42:04,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:04,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:04,364 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:42:04,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025741283] [2022-11-18 19:42:04,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:04,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:04,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:04,366 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:04,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 19:42:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:05,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 2975 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-18 19:42:05,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-18 19:42:05,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:42:05,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:05,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963827213] [2022-11-18 19:42:05,336 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:42:05,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025741283] [2022-11-18 19:42:05,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025741283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:05,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:05,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:42:05,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413409267] [2022-11-18 19:42:05,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:05,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:42:05,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:05,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:42:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:42:05,339 INFO L87 Difference]: Start difference. First operand 207 states and 259 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 2 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (25), 5 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 19:42:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:05,484 INFO L93 Difference]: Finished difference Result 384 states and 482 transitions. [2022-11-18 19:42:05,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:42:05,485 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 2 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (25), 5 states have call predecessors, (25), 2 states have call successors, (25) Word has length 208 [2022-11-18 19:42:05,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:05,487 INFO L225 Difference]: With dead ends: 384 [2022-11-18 19:42:05,488 INFO L226 Difference]: Without dead ends: 221 [2022-11-18 19:42:05,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:42:05,490 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 16 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:05,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2108 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:42:05,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-11-18 19:42:05,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 211. [2022-11-18 19:42:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 150 states have (on average 1.1533333333333333) internal successors, (173), 151 states have internal predecessors, (173), 40 states have call successors, (40), 16 states have call predecessors, (40), 20 states have return successors, (50), 43 states have call predecessors, (50), 39 states have call successors, (50) [2022-11-18 19:42:05,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 263 transitions. [2022-11-18 19:42:05,506 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 263 transitions. Word has length 208 [2022-11-18 19:42:05,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:05,506 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 263 transitions. [2022-11-18 19:42:05,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 2 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (25), 5 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 19:42:05,507 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 263 transitions. [2022-11-18 19:42:05,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-18 19:42:05,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:05,509 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:05,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:05,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 19:42:05,723 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:42:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:05,723 INFO L85 PathProgramCache]: Analyzing trace with hash -610764797, now seen corresponding path program 2 times [2022-11-18 19:42:05,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:05,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333936135] [2022-11-18 19:42:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:05,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:05,815 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:42:05,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355826455] [2022-11-18 19:42:05,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:42:05,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:05,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:05,817 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:05,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 19:42:06,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:42:06,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:42:06,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 2971 conjuncts, 93 conjunts are in the unsatisfiable core [2022-11-18 19:42:06,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:08,944 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:42:08,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2022-11-18 19:42:08,960 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:42:08,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2022-11-18 19:42:08,969 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:42:08,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2022-11-18 19:42:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 140 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-11-18 19:42:09,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:42:12,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:12,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333936135] [2022-11-18 19:42:12,349 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:42:12,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355826455] [2022-11-18 19:42:12,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355826455] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:42:12,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:42:12,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2022-11-18 19:42:12,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625361076] [2022-11-18 19:42:12,351 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:42:12,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 19:42:12,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:12,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 19:42:12,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-11-18 19:42:12,353 INFO L87 Difference]: Start difference. First operand 211 states and 263 transitions. Second operand has 19 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 7 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 7 states have call successors, (23) [2022-11-18 19:42:14,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:14,416 INFO L93 Difference]: Finished difference Result 488 states and 608 transitions. [2022-11-18 19:42:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 19:42:14,417 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 7 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 7 states have call successors, (23) Word has length 202 [2022-11-18 19:42:14,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:14,420 INFO L225 Difference]: With dead ends: 488 [2022-11-18 19:42:14,420 INFO L226 Difference]: Without dead ends: 335 [2022-11-18 19:42:14,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 245 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=149, Invalid=1183, Unknown=0, NotChecked=0, Total=1332 [2022-11-18 19:42:14,422 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 94 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 151 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:14,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 2085 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1005 Invalid, 0 Unknown, 151 Unchecked, 1.2s Time] [2022-11-18 19:42:14,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-11-18 19:42:14,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 322. [2022-11-18 19:42:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 236 states have (on average 1.152542372881356) internal successors, (272), 237 states have internal predecessors, (272), 53 states have call successors, (53), 25 states have call predecessors, (53), 32 states have return successors, (77), 59 states have call predecessors, (77), 52 states have call successors, (77) [2022-11-18 19:42:14,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 402 transitions. [2022-11-18 19:42:14,444 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 402 transitions. Word has length 202 [2022-11-18 19:42:14,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:14,445 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 402 transitions. [2022-11-18 19:42:14,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 7 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 7 states have call successors, (23) [2022-11-18 19:42:14,446 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 402 transitions. [2022-11-18 19:42:14,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-18 19:42:14,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:14,448 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:14,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:14,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 19:42:14,661 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:42:14,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:14,662 INFO L85 PathProgramCache]: Analyzing trace with hash -806386332, now seen corresponding path program 1 times [2022-11-18 19:42:14,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:14,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282457943] [2022-11-18 19:42:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:14,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:14,804 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:42:14,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765201419] [2022-11-18 19:42:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:14,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:14,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:14,807 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:14,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 19:42:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:15,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 3006 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-18 19:42:15,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:15,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-18 19:42:18,288 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:42:18,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2022-11-18 19:42:18,299 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:42:18,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2022-11-18 19:42:18,307 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:42:18,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2022-11-18 19:42:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 151 proven. 10 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-18 19:42:18,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:42:21,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:21,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282457943] [2022-11-18 19:42:21,417 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:42:21,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765201419] [2022-11-18 19:42:21,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765201419] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:42:21,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:42:21,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2022-11-18 19:42:21,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017683536] [2022-11-18 19:42:21,418 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:42:21,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-18 19:42:21,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:21,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-18 19:42:21,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1089, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 19:42:21,420 INFO L87 Difference]: Start difference. First operand 322 states and 402 transitions. Second operand has 29 states, 26 states have (on average 4.269230769230769) internal successors, (111), 27 states have internal predecessors, (111), 10 states have call successors, (27), 5 states have call predecessors, (27), 9 states have return successors, (26), 8 states have call predecessors, (26), 10 states have call successors, (26) [2022-11-18 19:42:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:29,618 INFO L93 Difference]: Finished difference Result 563 states and 714 transitions. [2022-11-18 19:42:29,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-18 19:42:29,619 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 4.269230769230769) internal successors, (111), 27 states have internal predecessors, (111), 10 states have call successors, (27), 5 states have call predecessors, (27), 9 states have return successors, (26), 8 states have call predecessors, (26), 10 states have call successors, (26) Word has length 202 [2022-11-18 19:42:29,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:29,622 INFO L225 Difference]: With dead ends: 563 [2022-11-18 19:42:29,622 INFO L226 Difference]: Without dead ends: 410 [2022-11-18 19:42:29,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 228 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1057 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=395, Invalid=4717, Unknown=0, NotChecked=0, Total=5112 [2022-11-18 19:42:29,625 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 295 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 5045 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 5391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 5045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 231 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:29,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1740 Invalid, 5391 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 5045 Invalid, 0 Unknown, 231 Unchecked, 5.2s Time] [2022-11-18 19:42:29,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-18 19:42:29,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 361. [2022-11-18 19:42:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 266 states have (on average 1.150375939849624) internal successors, (306), 269 states have internal predecessors, (306), 59 states have call successors, (59), 26 states have call predecessors, (59), 35 states have return successors, (88), 65 states have call predecessors, (88), 58 states have call successors, (88) [2022-11-18 19:42:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 453 transitions. [2022-11-18 19:42:29,657 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 453 transitions. Word has length 202 [2022-11-18 19:42:29,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:29,657 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 453 transitions. [2022-11-18 19:42:29,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 4.269230769230769) internal successors, (111), 27 states have internal predecessors, (111), 10 states have call successors, (27), 5 states have call predecessors, (27), 9 states have return successors, (26), 8 states have call predecessors, (26), 10 states have call successors, (26) [2022-11-18 19:42:29,658 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 453 transitions. [2022-11-18 19:42:29,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-18 19:42:29,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:29,660 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:29,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:29,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 19:42:29,873 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:42:29,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:29,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1509739381, now seen corresponding path program 1 times [2022-11-18 19:42:29,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:29,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222963427] [2022-11-18 19:42:29,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:29,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:29,958 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:42:29,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [114069015] [2022-11-18 19:42:29,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:29,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:29,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:29,960 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:29,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 19:42:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:30,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 99 conjunts are in the unsatisfiable core [2022-11-18 19:42:30,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:30,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:42:31,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 19:42:33,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:42:33,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 19:42:36,245 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2649 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2649))) is different from true [2022-11-18 19:42:36,822 INFO L321 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-11-18 19:42:36,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 443 treesize of output 447 [2022-11-18 19:42:36,865 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:42:36,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 29 [2022-11-18 19:42:47,390 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:42:47,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 12 [2022-11-18 19:42:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 147 proven. 47 refuted. 11 times theorem prover too weak. 37 trivial. 3 not checked. [2022-11-18 19:42:47,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:42:49,505 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_priority_queue_capacity_harness_~#old_backpointers~0#1.offset_9| Int) (|v_ULTIMATE.start_aws_priority_queue_capacity_harness_~#old_backpointers~0#1.base_9| Int)) (let ((.cse0 (select (select |c_#memory_int| |v_ULTIMATE.start_aws_priority_queue_capacity_harness_~#old_backpointers~0#1.base_9|) (+ |v_ULTIMATE.start_aws_priority_queue_capacity_harness_~#old_backpointers~0#1.offset_9| 8)))) (or (not (= .cse0 (select (select |c_#memory_int| |c_ULTIMATE.start_aws_priority_queue_capacity_harness_~#queue~0#1.base|) (+ 56 |c_ULTIMATE.start_aws_priority_queue_capacity_harness_~#queue~0#1.offset|)))) (= (mod .cse0 18446744073709551616) 0)))) is different from false [2022-11-18 19:42:49,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:49,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222963427] [2022-11-18 19:42:49,525 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:42:49,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114069015] [2022-11-18 19:42:49,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114069015] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:42:49,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:42:49,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2022-11-18 19:42:49,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677174649] [2022-11-18 19:42:49,526 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:42:49,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 19:42:49,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:49,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 19:42:49,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=846, Unknown=47, NotChecked=122, Total=1122 [2022-11-18 19:42:49,528 INFO L87 Difference]: Start difference. First operand 361 states and 453 transitions. Second operand has 32 states, 27 states have (on average 4.37037037037037) internal successors, (118), 30 states have internal predecessors, (118), 15 states have call successors, (28), 8 states have call predecessors, (28), 15 states have return successors, (27), 14 states have call predecessors, (27), 15 states have call successors, (27) [2022-11-18 19:42:50,147 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v___CPROVER_overflow_mult_~#c~1.base_146| Int) (v_ArrVal_2646 Int)) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_146|) 0) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_146| v_ArrVal_2646)))) (exists ((v_ArrVal_2649 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2649))) (exists ((v_ArrVal_2647 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2647)))) is different from true [2022-11-18 19:42:57,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:57,062 INFO L93 Difference]: Finished difference Result 707 states and 897 transitions. [2022-11-18 19:42:57,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 19:42:57,063 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 4.37037037037037) internal successors, (118), 30 states have internal predecessors, (118), 15 states have call successors, (28), 8 states have call predecessors, (28), 15 states have return successors, (27), 14 states have call predecessors, (27), 15 states have call successors, (27) Word has length 203 [2022-11-18 19:42:57,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:57,066 INFO L225 Difference]: With dead ends: 707 [2022-11-18 19:42:57,067 INFO L226 Difference]: Without dead ends: 538 [2022-11-18 19:42:57,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 229 SyntacticMatches, 13 SemanticMatches, 43 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 23.6s TimeCoverageRelationStatistics Valid=176, Invalid=1498, Unknown=60, NotChecked=246, Total=1980 [2022-11-18 19:42:57,069 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 150 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1941 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:57,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1650 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1335 Invalid, 0 Unknown, 1941 Unchecked, 1.1s Time] [2022-11-18 19:42:57,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-18 19:42:57,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 482. [2022-11-18 19:42:57,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 359 states have (on average 1.15041782729805) internal successors, (413), 369 states have internal predecessors, (413), 71 states have call successors, (71), 34 states have call predecessors, (71), 51 states have return successors, (131), 78 states have call predecessors, (131), 70 states have call successors, (131) [2022-11-18 19:42:57,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 615 transitions. [2022-11-18 19:42:57,109 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 615 transitions. Word has length 203 [2022-11-18 19:42:57,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:57,109 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 615 transitions. [2022-11-18 19:42:57,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 4.37037037037037) internal successors, (118), 30 states have internal predecessors, (118), 15 states have call successors, (28), 8 states have call predecessors, (28), 15 states have return successors, (27), 14 states have call predecessors, (27), 15 states have call successors, (27) [2022-11-18 19:42:57,110 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 615 transitions. [2022-11-18 19:42:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-18 19:42:57,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:57,113 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:57,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:57,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:57,331 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:42:57,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:57,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1258935763, now seen corresponding path program 1 times [2022-11-18 19:42:57,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:57,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761952973] [2022-11-18 19:42:57,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:57,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:57,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:57,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761952973] [2022-11-18 19:42:57,521 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:42:57,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432734618] [2022-11-18 19:42:57,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:57,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:57,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:57,523 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:57,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 19:42:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:58,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:42:58,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:58,309 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-18 19:42:58,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:42:58,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432734618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:58,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:58,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:42:58,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568637085] [2022-11-18 19:42:58,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:58,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:42:58,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:58,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:42:58,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:42:58,312 INFO L87 Difference]: Start difference. First operand 482 states and 615 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-18 19:42:58,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:42:58,383 INFO L93 Difference]: Finished difference Result 913 states and 1164 transitions. [2022-11-18 19:42:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:42:58,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 209 [2022-11-18 19:42:58,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:42:58,387 INFO L225 Difference]: With dead ends: 913 [2022-11-18 19:42:58,387 INFO L226 Difference]: Without dead ends: 463 [2022-11-18 19:42:58,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:42:58,391 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:42:58,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 407 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:42:58,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-11-18 19:42:58,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 462. [2022-11-18 19:42:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 347 states have (on average 1.1498559077809798) internal successors, (399), 355 states have internal predecessors, (399), 66 states have call successors, (66), 32 states have call predecessors, (66), 48 states have return successors, (119), 74 states have call predecessors, (119), 65 states have call successors, (119) [2022-11-18 19:42:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 584 transitions. [2022-11-18 19:42:58,433 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 584 transitions. Word has length 209 [2022-11-18 19:42:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:42:58,433 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 584 transitions. [2022-11-18 19:42:58,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-18 19:42:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 584 transitions. [2022-11-18 19:42:58,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-18 19:42:58,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:42:58,436 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:42:58,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 19:42:58,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:58,647 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:42:58,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:58,648 INFO L85 PathProgramCache]: Analyzing trace with hash 247809849, now seen corresponding path program 1 times [2022-11-18 19:42:58,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:58,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096029571] [2022-11-18 19:42:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:58,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:58,755 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:42:58,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425181406] [2022-11-18 19:42:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:58,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:42:58,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:42:58,757 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:42:58,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 19:43:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:01,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 2992 conjuncts, 177 conjunts are in the unsatisfiable core [2022-11-18 19:43:01,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:43:01,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:43:01,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 19:43:01,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 19:43:02,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:43:02,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 19:43:02,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:43:02,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 19:43:02,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:43:02,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 19:43:02,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:43:02,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 19:43:02,445 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3031 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3031))) (exists ((v_ArrVal_3032 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3032) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:43:02,568 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:43:02,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 56 [2022-11-18 19:43:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 125 proven. 35 refuted. 3 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 19:43:12,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:43:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-18 19:43:15,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:15,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096029571] [2022-11-18 19:43:15,071 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:43:15,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425181406] [2022-11-18 19:43:15,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425181406] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:43:15,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:43:15,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 10] total 51 [2022-11-18 19:43:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090297214] [2022-11-18 19:43:15,072 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:43:15,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-18 19:43:15,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:15,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-18 19:43:15,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=2293, Unknown=4, NotChecked=96, Total=2550 [2022-11-18 19:43:15,075 INFO L87 Difference]: Start difference. First operand 462 states and 584 transitions. Second operand has 51 states, 46 states have (on average 3.4782608695652173) internal successors, (160), 42 states have internal predecessors, (160), 15 states have call successors, (47), 7 states have call predecessors, (47), 13 states have return successors, (46), 13 states have call predecessors, (46), 15 states have call successors, (46) [2022-11-18 19:43:31,198 WARN L233 SmtUtils]: Spent 14.48s on a formula simplification. DAG size of input: 63 DAG size of output: 62 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:43:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:43:40,209 INFO L93 Difference]: Finished difference Result 787 states and 1026 transitions. [2022-11-18 19:43:40,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-18 19:43:40,210 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 46 states have (on average 3.4782608695652173) internal successors, (160), 42 states have internal predecessors, (160), 15 states have call successors, (47), 7 states have call predecessors, (47), 13 states have return successors, (46), 13 states have call predecessors, (46), 15 states have call successors, (46) Word has length 201 [2022-11-18 19:43:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:43:40,214 INFO L225 Difference]: With dead ends: 787 [2022-11-18 19:43:40,214 INFO L226 Difference]: Without dead ends: 535 [2022-11-18 19:43:40,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 349 SyntacticMatches, 8 SemanticMatches, 72 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1488 ImplicationChecksByTransitivity, 33.6s TimeCoverageRelationStatistics Valid=325, Invalid=4908, Unknown=27, NotChecked=142, Total=5402 [2022-11-18 19:43:40,218 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 134 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 4624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2749 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:43:40,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 2725 Invalid, 4624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1823 Invalid, 0 Unknown, 2749 Unchecked, 1.9s Time] [2022-11-18 19:43:40,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-11-18 19:43:40,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 511. [2022-11-18 19:43:40,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 387 states have (on average 1.1550387596899225) internal successors, (447), 398 states have internal predecessors, (447), 69 states have call successors, (69), 34 states have call predecessors, (69), 54 states have return successors, (128), 78 states have call predecessors, (128), 68 states have call successors, (128) [2022-11-18 19:43:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 644 transitions. [2022-11-18 19:43:40,264 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 644 transitions. Word has length 201 [2022-11-18 19:43:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:43:40,265 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 644 transitions. [2022-11-18 19:43:40,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 46 states have (on average 3.4782608695652173) internal successors, (160), 42 states have internal predecessors, (160), 15 states have call successors, (47), 7 states have call predecessors, (47), 13 states have return successors, (46), 13 states have call predecessors, (46), 15 states have call successors, (46) [2022-11-18 19:43:40,265 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 644 transitions. [2022-11-18 19:43:40,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-18 19:43:40,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:43:40,268 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:43:40,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:40,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-18 19:43:40,483 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:43:40,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:40,483 INFO L85 PathProgramCache]: Analyzing trace with hash 811020578, now seen corresponding path program 1 times [2022-11-18 19:43:40,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:40,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268698438] [2022-11-18 19:43:40,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:40,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:40,573 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:43:40,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769742522] [2022-11-18 19:43:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:40,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:43:40,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:40,576 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:43:40,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-18 19:43:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:41,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 2995 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-18 19:43:41,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:43:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-18 19:43:41,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:43:41,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:41,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268698438] [2022-11-18 19:43:41,566 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:43:41,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769742522] [2022-11-18 19:43:41,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769742522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:41,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:41,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:43:41,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53396562] [2022-11-18 19:43:41,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:41,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:43:41,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:41,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:43:41,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:43:41,568 INFO L87 Difference]: Start difference. First operand 511 states and 644 transitions. Second operand has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 3 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-18 19:43:41,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:43:41,789 INFO L93 Difference]: Finished difference Result 802 states and 1018 transitions. [2022-11-18 19:43:41,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:43:41,790 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 3 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 201 [2022-11-18 19:43:41,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:43:41,797 INFO L225 Difference]: With dead ends: 802 [2022-11-18 19:43:41,797 INFO L226 Difference]: Without dead ends: 523 [2022-11-18 19:43:41,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:43:41,800 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 5 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:43:41,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1749 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:43:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-11-18 19:43:41,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 513. [2022-11-18 19:43:41,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 388 states have (on average 1.1546391752577319) internal successors, (448), 400 states have internal predecessors, (448), 69 states have call successors, (69), 34 states have call predecessors, (69), 55 states have return successors, (131), 78 states have call predecessors, (131), 68 states have call successors, (131) [2022-11-18 19:43:41,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 648 transitions. [2022-11-18 19:43:41,852 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 648 transitions. Word has length 201 [2022-11-18 19:43:41,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:43:41,853 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 648 transitions. [2022-11-18 19:43:41,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 3 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-18 19:43:41,853 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 648 transitions. [2022-11-18 19:43:41,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-18 19:43:41,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:43:41,856 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:43:41,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-18 19:43:42,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:43:42,070 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:43:42,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:42,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1725283338, now seen corresponding path program 1 times [2022-11-18 19:43:42,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:42,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362317182] [2022-11-18 19:43:42,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:42,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:42,157 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:43:42,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1414424965] [2022-11-18 19:43:42,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:42,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:43:42,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:43:42,159 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:43:42,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-18 19:43:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:43,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 3055 conjuncts, 162 conjunts are in the unsatisfiable core [2022-11-18 19:43:43,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:43:43,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:43:43,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 19:44:07,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:44:07,061 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:44:07,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2022-11-18 19:44:13,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 62 [2022-11-18 19:44:13,588 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:44:13,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-18 19:44:14,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:44:14,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:44:14,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:44:14,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2022-11-18 19:44:14,637 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3479 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3479) |c_#memory_int|)) is different from true [2022-11-18 19:44:15,053 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3481 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3481)) |c_#memory_int|)) is different from true [2022-11-18 19:44:15,066 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_3481 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_3481)) |c_#memory_int|)) is different from true [2022-11-18 19:44:16,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:44:16,226 INFO L321 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-11-18 19:44:16,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 1 [2022-11-18 19:44:16,231 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 139 proven. 15 refuted. 4 times theorem prover too weak. 70 trivial. 10 not checked. [2022-11-18 19:44:16,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:44:17,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:44:17,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362317182] [2022-11-18 19:44:17,894 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:44:17,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414424965] [2022-11-18 19:44:17,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414424965] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:44:17,894 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:44:17,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2022-11-18 19:44:17,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290910159] [2022-11-18 19:44:17,894 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:44:17,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-18 19:44:17,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:44:17,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-18 19:44:17,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1952, Unknown=38, NotChecked=276, Total=2450 [2022-11-18 19:44:17,896 INFO L87 Difference]: Start difference. First operand 513 states and 648 transitions. Second operand has 46 states, 40 states have (on average 3.025) internal successors, (121), 38 states have internal predecessors, (121), 15 states have call successors, (30), 10 states have call predecessors, (30), 14 states have return successors, (29), 14 states have call predecessors, (29), 15 states have call successors, (29) [2022-11-18 19:44:28,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:44:28,177 INFO L93 Difference]: Finished difference Result 860 states and 1086 transitions. [2022-11-18 19:44:28,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 19:44:28,177 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 40 states have (on average 3.025) internal successors, (121), 38 states have internal predecessors, (121), 15 states have call successors, (30), 10 states have call predecessors, (30), 14 states have return successors, (29), 14 states have call predecessors, (29), 15 states have call successors, (29) Word has length 215 [2022-11-18 19:44:28,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:44:28,181 INFO L225 Difference]: With dead ends: 860 [2022-11-18 19:44:28,181 INFO L226 Difference]: Without dead ends: 594 [2022-11-18 19:44:28,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 251 SyntacticMatches, 10 SemanticMatches, 59 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=252, Invalid=2999, Unknown=67, NotChecked=342, Total=3660 [2022-11-18 19:44:28,184 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 263 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 4823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3158 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:44:28,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 2166 Invalid, 4823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1513 Invalid, 0 Unknown, 3158 Unchecked, 1.7s Time] [2022-11-18 19:44:28,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-11-18 19:44:28,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 537. [2022-11-18 19:44:28,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 403 states have (on average 1.15136476426799) internal successors, (464), 416 states have internal predecessors, (464), 74 states have call successors, (74), 37 states have call predecessors, (74), 59 states have return successors, (140), 83 states have call predecessors, (140), 73 states have call successors, (140) [2022-11-18 19:44:28,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 678 transitions. [2022-11-18 19:44:28,228 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 678 transitions. Word has length 215 [2022-11-18 19:44:28,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:44:28,229 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 678 transitions. [2022-11-18 19:44:28,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 40 states have (on average 3.025) internal successors, (121), 38 states have internal predecessors, (121), 15 states have call successors, (30), 10 states have call predecessors, (30), 14 states have return successors, (29), 14 states have call predecessors, (29), 15 states have call successors, (29) [2022-11-18 19:44:28,229 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 678 transitions. [2022-11-18 19:44:28,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-18 19:44:28,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:44:28,233 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1] [2022-11-18 19:44:28,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-18 19:44:28,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-18 19:44:28,446 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:44:28,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:44:28,447 INFO L85 PathProgramCache]: Analyzing trace with hash 493884550, now seen corresponding path program 1 times [2022-11-18 19:44:28,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:44:28,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064417431] [2022-11-18 19:44:28,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:44:28,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:44:28,532 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:44:28,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [916778320] [2022-11-18 19:44:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:44:28,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:44:28,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:44:28,534 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:44:28,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-18 19:44:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:44:35,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 3048 conjuncts, 332 conjunts are in the unsatisfiable core [2022-11-18 19:44:35,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:44:35,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:44:35,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-18 19:44:35,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-18 19:44:35,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-18 19:44:35,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:44:35,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-18 19:44:35,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:44:35,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-18 19:44:35,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:44:35,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:44:35,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-18 19:44:36,878 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 19:44:36,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2022-11-18 19:44:37,009 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3737 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3737) |c_#memory_int|)) is different from true [2022-11-18 19:44:38,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 19:44:38,250 INFO L321 Elim1Store]: treesize reduction 33, result has 32.7 percent of original size [2022-11-18 19:44:38,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 786 treesize of output 779 [2022-11-18 19:44:38,320 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:44:38,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-18 19:44:38,658 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 19:44:38,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-18 19:44:39,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:44:39,198 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_aws_priority_queue_capacity_harness_~#old_byte_backpointers~0#1.base_BEFORE_CALL_5| Int)) (= (select |c_#valid| |v_ULTIMATE.start_aws_priority_queue_capacity_harness_~#old_byte_backpointers~0#1.base_BEFORE_CALL_5|) 1)) (exists ((v_ArrVal_3742 Int) (v_ArrVal_3740 Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_save_byte_from_array_#in~storage#1.base| (store (store (select |c_old(#memory_int)| |c_save_byte_from_array_#in~storage#1.base|) |c_save_byte_from_array_#in~storage#1.offset| v_ArrVal_3740) (+ |c_save_byte_from_array_#in~storage#1.offset| 8) v_ArrVal_3742))))) is different from true [2022-11-18 19:44:39,214 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 15 [2022-11-18 19:45:02,475 WARN L233 SmtUtils]: Spent 8.40s on a formula simplification. DAG size of input: 55 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:45:02,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:02,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:02,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 228 [2022-11-18 19:45:02,956 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:45:02,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 107 treesize of output 147 [2022-11-18 19:45:16,210 INFO L321 Elim1Store]: treesize reduction 97, result has 23.6 percent of original size [2022-11-18 19:45:16,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 261 treesize of output 279 [2022-11-18 19:45:16,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-18 19:45:16,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:16,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:16,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2022-11-18 19:45:16,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:16,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:16,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-18 19:45:16,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:16,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:16,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 80 [2022-11-18 19:45:16,895 INFO L321 Elim1Store]: treesize reduction 78, result has 29.7 percent of original size [2022-11-18 19:45:16,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 78 treesize of output 101 [2022-11-18 19:45:16,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-18 19:45:16,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:16,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:16,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-18 19:45:17,479 INFO L321 Elim1Store]: treesize reduction 112, result has 22.8 percent of original size [2022-11-18 19:45:17,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 261 treesize of output 282 [2022-11-18 19:45:17,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-18 19:45:17,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 157 [2022-11-18 19:45:17,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:17,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:17,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2022-11-18 19:45:17,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:17,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:17,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-18 19:45:17,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:17,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:17,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2022-11-18 19:45:17,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:17,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:45:17,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 46 [2022-11-18 19:46:22,265 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:46:28,912 INFO L321 Elim1Store]: treesize reduction 72, result has 28.7 percent of original size [2022-11-18 19:46:28,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 238 treesize of output 364 [2022-11-18 19:46:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 69 proven. 115 refuted. 0 times theorem prover too weak. 43 trivial. 11 not checked. [2022-11-18 19:46:30,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:46:46,470 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 19:46:56,215 WARN L233 SmtUtils]: Spent 9.74s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 19:47:09,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:09,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064417431] [2022-11-18 19:47:09,863 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:47:09,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916778320] [2022-11-18 19:47:09,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916778320] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:09,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:47:09,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2022-11-18 19:47:09,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220015739] [2022-11-18 19:47:09,863 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:09,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-11-18 19:47:09,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:09,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-11-18 19:47:09,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=4540, Unknown=59, NotChecked=274, Total=5112 [2022-11-18 19:47:09,866 INFO L87 Difference]: Start difference. First operand 537 states and 678 transitions. Second operand has 68 states, 57 states have (on average 2.280701754385965) internal successors, (130), 56 states have internal predecessors, (130), 23 states have call successors, (30), 10 states have call predecessors, (30), 19 states have return successors, (29), 21 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-18 19:47:51,740 WARN L233 SmtUtils]: Spent 26.28s on a formula simplification. DAG size of input: 82 DAG size of output: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:48:02,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:02,431 INFO L93 Difference]: Finished difference Result 632 states and 812 transitions. [2022-11-18 19:48:02,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-18 19:48:02,432 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 57 states have (on average 2.280701754385965) internal successors, (130), 56 states have internal predecessors, (130), 23 states have call successors, (30), 10 states have call predecessors, (30), 19 states have return successors, (29), 21 states have call predecessors, (29), 22 states have call successors, (29) Word has length 209 [2022-11-18 19:48:02,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:02,436 INFO L225 Difference]: With dead ends: 632 [2022-11-18 19:48:02,436 INFO L226 Difference]: Without dead ends: 630 [2022-11-18 19:48:02,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 140 SyntacticMatches, 7 SemanticMatches, 93 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2544 ImplicationChecksByTransitivity, 95.5s TimeCoverageRelationStatistics Valid=411, Invalid=8078, Unknown=75, NotChecked=366, Total=8930 [2022-11-18 19:48:02,440 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 142 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 5962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3639 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:02,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 3014 Invalid, 5962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2242 Invalid, 0 Unknown, 3639 Unchecked, 10.5s Time] [2022-11-18 19:48:02,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-18 19:48:02,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 577. [2022-11-18 19:48:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 427 states have (on average 1.14519906323185) internal successors, (489), 441 states have internal predecessors, (489), 85 states have call successors, (85), 41 states have call predecessors, (85), 64 states have return successors, (165), 94 states have call predecessors, (165), 84 states have call successors, (165) [2022-11-18 19:48:02,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 739 transitions. [2022-11-18 19:48:02,525 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 739 transitions. Word has length 209 [2022-11-18 19:48:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:02,526 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 739 transitions. [2022-11-18 19:48:02,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 57 states have (on average 2.280701754385965) internal successors, (130), 56 states have internal predecessors, (130), 23 states have call successors, (30), 10 states have call predecessors, (30), 19 states have return successors, (29), 21 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-18 19:48:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 739 transitions. [2022-11-18 19:48:02,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-18 19:48:02,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:02,529 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:02,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-18 19:48:02,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-18 19:48:02,755 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:02,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:02,755 INFO L85 PathProgramCache]: Analyzing trace with hash -798463503, now seen corresponding path program 1 times [2022-11-18 19:48:02,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:02,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427545495] [2022-11-18 19:48:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:02,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:02,834 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:48:02,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112974091] [2022-11-18 19:48:02,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:02,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:48:02,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:48:02,837 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:48:02,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6ba62c1-e0b8-4cae-9de1-fa561aa73b76/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-18 19:48:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:06,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 3061 conjuncts, 378 conjunts are in the unsatisfiable core [2022-11-18 19:48:06,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:06,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 19:48:07,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:48:08,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 19:48:08,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-18 19:48:08,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-18 19:48:08,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 19:48:08,754 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|bounded_malloc_#res.base| Int) (v_ArrVal_3981 Int)) (and (= (select |c_old(#valid)| |bounded_malloc_#res.base|) 0) (= |c_#valid| (store |c_old(#valid)| |bounded_malloc_#res.base| v_ArrVal_3981)))) (exists ((v_ArrVal_3984 Int) (v_ArrVal_3982 Int) (ensure_array_list_has_allocated_data_member_~list.offset Int)) (and (= (store |c_old(#memory_int)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (store (select |c_old(#memory_int)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) (+ ensure_array_list_has_allocated_data_member_~list.offset 32) v_ArrVal_3982) ensure_array_list_has_allocated_data_member_~list.offset v_ArrVal_3984)) |c_#memory_int|) (<= |c_ensure_array_list_has_allocated_data_member_#in~list.offset| ensure_array_list_has_allocated_data_member_~list.offset)))) is different from true [2022-11-18 19:48:08,811 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 17 [2022-11-18 19:48:08,912 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 19:48:08,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 19:48:08,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 19:48:12,800 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3992 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_3992)) |c_#memory_int|)) is different from true [2022-11-18 19:48:18,454 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:48:18,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 750 treesize of output 896 [2022-11-18 19:48:19,673 INFO L321 Elim1Store]: treesize reduction 324, result has 22.3 percent of original size [2022-11-18 19:48:19,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 802 treesize of output 1019 [2022-11-18 19:48:41,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1092 treesize of output 1087 [2022-11-18 19:48:51,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1064 treesize of output 1059 [2022-11-18 19:48:52,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-18 19:48:53,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 576 treesize of output 527 [2022-11-18 19:48:54,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1064 treesize of output 921 [2022-11-18 19:48:58,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 570 treesize of output 521 [2022-11-18 19:48:59,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1060 treesize of output 917 [2022-11-18 19:49:10,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 576 treesize of output 527 [2022-11-18 19:49:11,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1064 treesize of output 921 [2022-11-18 19:49:13,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 112 [2022-11-18 19:49:14,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 112 [2022-11-18 19:49:14,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:49:14,501 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:49:14,514 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:49:14,539 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:49:14,571 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:49:14,584 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:49:14,607 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:49:14,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 176 [2022-11-18 19:49:15,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 129 [2022-11-18 19:49:15,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 112 [2022-11-18 19:49:15,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 112 [2022-11-18 19:49:15,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 129 [2022-11-18 19:49:15,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 112 [2022-11-18 19:49:18,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 570 treesize of output 521 [2022-11-18 19:49:20,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:20,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1060 treesize of output 910 [2022-11-18 19:49:22,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 114 [2022-11-18 19:49:22,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 76 [2022-11-18 19:49:22,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 114 [2022-11-18 19:49:22,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 74 [2022-11-18 19:49:22,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,927 INFO L217 Elim1Store]: Index analysis took 118 ms [2022-11-18 19:49:22,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:22,949 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-18 19:49:22,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 293 treesize of output 264 [2022-11-18 19:49:23,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:23,296 INFO L217 Elim1Store]: Index analysis took 127 ms [2022-11-18 19:49:23,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:23,318 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-18 19:49:23,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 401 treesize of output 356 [2022-11-18 19:49:23,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:23,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:23,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:23,650 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:23,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 220 treesize of output 195 [2022-11-18 19:49:23,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:23,950 INFO L217 Elim1Store]: Index analysis took 122 ms [2022-11-18 19:49:23,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:23,972 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-18 19:49:23,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 401 treesize of output 356 [2022-11-18 19:49:24,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:24,754 INFO L217 Elim1Store]: Index analysis took 130 ms [2022-11-18 19:49:24,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:24,772 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-18 19:49:24,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:25,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:25,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:25,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:25,064 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:25,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:25,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:25,379 INFO L217 Elim1Store]: Index analysis took 112 ms [2022-11-18 19:49:25,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:25,387 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-18 19:49:25,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:25,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:25,849 INFO L217 Elim1Store]: Index analysis took 135 ms [2022-11-18 19:49:25,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:25,865 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-18 19:49:25,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:27,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:27,253 INFO L217 Elim1Store]: Index analysis took 128 ms [2022-11-18 19:49:27,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:27,270 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-18 19:49:27,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:27,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:27,701 INFO L217 Elim1Store]: Index analysis took 128 ms [2022-11-18 19:49:27,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:27,719 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-18 19:49:27,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:28,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:28,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:28,102 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:28,118 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:28,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:28,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:28,807 INFO L217 Elim1Store]: Index analysis took 129 ms [2022-11-18 19:49:28,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:28,816 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-18 19:49:28,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:28,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:28,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:28,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:28,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:28,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 53 [2022-11-18 19:49:28,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:49:29,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:29,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:29,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:29,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:29,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 53 [2022-11-18 19:49:29,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:49:29,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:29,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:29,858 INFO L217 Elim1Store]: Index analysis took 123 ms [2022-11-18 19:49:29,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:29,877 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:29,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:30,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:30,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:30,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:30,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:30,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:30,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:30,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:30,543 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:30,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:30,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:30,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:30,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:30,930 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:30,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:31,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:31,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:31,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:31,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:31,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 53 [2022-11-18 19:49:31,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:49:31,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:31,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:31,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:31,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:31,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:31,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 53 [2022-11-18 19:49:31,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:49:32,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:32,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:32,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:32,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:32,186 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:49:32,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 56 [2022-11-18 19:49:32,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2022-11-18 19:49:32,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:32,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:32,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:32,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:32,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2022-11-18 19:49:32,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2022-11-18 19:49:33,111 INFO L217 Elim1Store]: Index analysis took 178 ms [2022-11-18 19:49:33,393 INFO L321 Elim1Store]: treesize reduction 146, result has 8.8 percent of original size [2022-11-18 19:49:33,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 295 treesize of output 279 [2022-11-18 19:49:34,014 INFO L217 Elim1Store]: Index analysis took 235 ms [2022-11-18 19:49:34,219 INFO L321 Elim1Store]: treesize reduction 108, result has 11.5 percent of original size [2022-11-18 19:49:34,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 396 treesize of output 366 [2022-11-18 19:49:35,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:35,058 INFO L217 Elim1Store]: Index analysis took 138 ms [2022-11-18 19:49:35,312 INFO L321 Elim1Store]: treesize reduction 101, result has 12.2 percent of original size [2022-11-18 19:49:35,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 222 treesize of output 210 [2022-11-18 19:49:35,686 INFO L217 Elim1Store]: Index analysis took 196 ms [2022-11-18 19:49:35,943 INFO L321 Elim1Store]: treesize reduction 146, result has 8.8 percent of original size [2022-11-18 19:49:35,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 396 treesize of output 366 [2022-11-18 19:49:37,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:37,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:37,959 INFO L217 Elim1Store]: Index analysis took 104 ms [2022-11-18 19:49:38,096 INFO L321 Elim1Store]: treesize reduction 55, result has 20.3 percent of original size [2022-11-18 19:49:38,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 292 treesize of output 278 [2022-11-18 19:49:38,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2022-11-18 19:49:38,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:38,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:38,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:38,958 INFO L321 Elim1Store]: treesize reduction 28, result has 33.3 percent of original size [2022-11-18 19:49:38,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 209 [2022-11-18 19:49:39,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2022-11-18 19:49:39,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:39,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:39,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:39,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:39,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 114 [2022-11-18 19:49:39,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 76 [2022-11-18 19:49:39,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:39,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:39,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:40,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:40,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 114 [2022-11-18 19:49:40,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 76 [2022-11-18 19:49:40,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:40,599 INFO L217 Elim1Store]: Index analysis took 121 ms [2022-11-18 19:49:40,788 INFO L321 Elim1Store]: treesize reduction 101, result has 12.2 percent of original size [2022-11-18 19:49:40,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 293 treesize of output 277 [2022-11-18 19:49:41,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:41,241 INFO L217 Elim1Store]: Index analysis took 123 ms [2022-11-18 19:49:41,475 INFO L321 Elim1Store]: treesize reduction 101, result has 12.2 percent of original size [2022-11-18 19:49:41,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 418 treesize of output 386 [2022-11-18 19:49:41,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:41,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:41,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:41,979 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:41,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 220 treesize of output 195 [2022-11-18 19:49:42,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:42,307 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-18 19:49:42,607 INFO L321 Elim1Store]: treesize reduction 66, result has 17.5 percent of original size [2022-11-18 19:49:42,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 401 treesize of output 369 [2022-11-18 19:49:43,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:43,297 INFO L217 Elim1Store]: Index analysis took 103 ms [2022-11-18 19:49:43,437 INFO L321 Elim1Store]: treesize reduction 37, result has 11.9 percent of original size [2022-11-18 19:49:43,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 214 treesize of output 196 [2022-11-18 19:49:43,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:43,899 INFO L217 Elim1Store]: Index analysis took 115 ms [2022-11-18 19:49:44,057 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-18 19:49:44,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 214 treesize of output 196 [2022-11-18 19:49:44,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:44,354 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-18 19:49:44,497 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-18 19:49:44,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 85 treesize of output 79 [2022-11-18 19:49:44,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:44,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:45,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:45,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2022-11-18 19:49:45,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:49:45,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:45,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:45,594 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:45,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:45,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:45,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:45,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:45,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:45,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:46,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:46,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:46,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:46,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:46,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:46,618 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:46,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:47,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 53 [2022-11-18 19:49:47,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:49:47,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 53 [2022-11-18 19:49:47,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:49:47,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:47,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2022-11-18 19:49:48,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,078 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:49:48,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 56 [2022-11-18 19:49:48,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2022-11-18 19:49:48,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2022-11-18 19:49:48,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2022-11-18 19:49:48,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:48,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 53 [2022-11-18 19:49:48,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:49:49,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:49,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:49,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:49,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:49,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 53 [2022-11-18 19:49:49,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-18 19:49:50,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,162 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 19:49:50,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:50,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:50,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:50,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:50,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:51,010 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-18 19:49:51,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:51,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:51,441 INFO L217 Elim1Store]: Index analysis took 132 ms [2022-11-18 19:49:51,462 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-18 19:49:51,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:51,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:51,917 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-18 19:49:51,926 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-18 19:49:51,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:52,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:52,478 INFO L217 Elim1Store]: Index analysis took 118 ms [2022-11-18 19:49:52,498 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-18 19:49:52,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:49:53,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 19:49:54,019 INFO L217 Elim1Store]: Index analysis took 115 ms [2022-11-18 19:49:54,026 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-18 19:49:54,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 57 [2022-11-18 19:50:16,263 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:16,472 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:16,857 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:17,173 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:17,227 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:17,555 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:17,611 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:17,742 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:18,164 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:18,539 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:18,595 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 19:50:48,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:50:48,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:48,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:48,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:48,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:49,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:49,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:49,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:49,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:49,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:50,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:50,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:50,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:50,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:51,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:51,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:51,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:51,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:51,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:51,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:50:52,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:52,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:50:52,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:52,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:50:52,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:50:52,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:50:52,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:53,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:53,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:53,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 18 [2022-11-18 19:50:53,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:53,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:54,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:50:54,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:54,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:54,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:54,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:55,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:55,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:55,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:55,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:55,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:55,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:55,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:56,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:56,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:56,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:56,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-18 19:50:56,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:50:57,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:50:57,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:50:57,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:57,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:57,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:50:57,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:57,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:50:58,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:58,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:58,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:50:59,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:59,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:59,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:50:59,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:50:59,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:51:00,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:51:00,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:51:00,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:51:00,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:51:00,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:51:00,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:51:01,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:51:01,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:51:01,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:51:01,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:51:01,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:51:01,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:51:02,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:51:02,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:51:02,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-18 19:51:21,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:51:21,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:51:21,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:51:21,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:51:22,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:51:22,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 18 [2022-11-18 19:51:22,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:51:23,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:51:24,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:51:24,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:51:24,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2022-11-18 19:51:24,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-18 19:51:24,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:51:24,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2022-11-18 19:53:24,741 WARN L233 SmtUtils]: Spent 1.96m on a formula simplification. DAG size of input: 411 DAG size of output: 186 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 19:53:24,741 INFO L321 Elim1Store]: treesize reduction 1372, result has 23.6 percent of original size [2022-11-18 19:53:24,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 15 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 17 new quantified variables, introduced 78 case distinctions, treesize of input 8557 treesize of output 12887