./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0 --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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:06:23,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:06:23,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:06:23,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:06:23,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:06:23,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:06:23,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:06:23,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:06:23,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:06:23,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:06:23,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:06:23,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:06:23,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:06:23,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:06:23,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:06:23,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:06:23,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:06:23,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:06:23,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:06:23,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:06:23,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:06:23,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:06:23,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:06:23,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:06:23,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:06:23,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:06:23,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:06:23,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:06:23,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:06:23,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:06:23,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:06:23,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:06:23,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:06:23,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:06:23,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:06:23,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:06:23,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:06:23,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:06:23,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:06:23,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:06:23,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:06:23,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:06:23,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:06:23,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:06:23,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:06:23,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:06:23,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:06:23,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:06:23,629 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:06:23,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:06:23,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:06:23,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:06:23,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:06:23,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:06:23,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:06:23,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:06:23,631 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:06:23,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:06:23,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:06:23,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:06:23,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:06:23,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:06:23,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:06:23,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:06:23,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:06:23,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:06:23,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:06:23,633 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:06:23,633 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:06:23,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:06:23,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:06:23,634 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_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-11-22 15:06:23,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:06:23,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:06:23,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:06:23,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:06:23,993 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:06:23,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-22 15:06:24,087 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/data/e9addabdd/ed936f0670684f8db560ff51109b1c63/FLAG6f382e55d [2021-11-22 15:06:25,021 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:06:25,022 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-22 15:06:25,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/data/e9addabdd/ed936f0670684f8db560ff51109b1c63/FLAG6f382e55d [2021-11-22 15:06:25,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/data/e9addabdd/ed936f0670684f8db560ff51109b1c63 [2021-11-22 15:06:25,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:06:25,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:06:25,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:06:25,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:06:25,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:06:25,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:06:25" (1/1) ... [2021-11-22 15:06:25,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6736e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:25, skipping insertion in model container [2021-11-22 15:06:25,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:06:25" (1/1) ... [2021-11-22 15:06:25,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:06:25,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:06:28,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-22 15:06:28,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-22 15:06:28,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-22 15:06:28,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-22 15:06:28,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:06:28,735 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:06:29,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-22 15:06:29,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-22 15:06:29,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-22 15:06:29,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-22 15:06:29,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:06:29,506 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:06:29,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29 WrapperNode [2021-11-22 15:06:29,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:06:29,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:06:29,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:06:29,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:06:29,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:29,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:30,099 INFO L137 Inliner]: procedures = 412, calls = 1826, calls flagged for inlining = 788, calls inlined = 1359, statements flattened = 14062 [2021-11-22 15:06:30,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:06:30,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:06:30,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:06:30,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:06:30,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:30,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:30,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:30,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:30,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:30,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:30,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:30,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:06:30,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:06:30,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:06:30,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:06:30,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (1/1) ... [2021-11-22 15:06:30,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:06:30,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:06:30,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:06:30,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed5db8b-bbe0-4b65-8424-14fc63e4bc13/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:06:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:06:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:06:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:06:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:06:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:06:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:06:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:06:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:06:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:06:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:06:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:06:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:06:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:06:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:06:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:06:30,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:06:31,589 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:06:31,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:06:38,153 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-22 15:06:38,153 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-22 15:06:38,153 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-22 15:06:38,153 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-22 15:06:38,154 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-22 15:06:38,154 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-22 15:06:38,154 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res#1 := 0; [2021-11-22 15:06:38,154 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-22 15:06:38,154 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-22 15:06:38,155 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-22 15:06:38,156 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:06:38,178 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:06:38,178 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:06:38,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:06:38 BoogieIcfgContainer [2021-11-22 15:06:38,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:06:38,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:06:38,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:06:38,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:06:38,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:06:25" (1/3) ... [2021-11-22 15:06:38,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ffca00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:06:38, skipping insertion in model container [2021-11-22 15:06:38,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:06:29" (2/3) ... [2021-11-22 15:06:38,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ffca00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:06:38, skipping insertion in model container [2021-11-22 15:06:38,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:06:38" (3/3) ... [2021-11-22 15:06:38,194 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-22 15:06:38,200 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:06:38,200 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-22 15:06:38,260 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:06:38,267 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:06:38,268 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-22 15:06:38,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 2796 states, 2752 states have (on average 1.307049418604651) internal successors, (3597), 2795 states have internal predecessors, (3597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 15:06:38,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:38,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:38,387 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:38,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:38,393 INFO L85 PathProgramCache]: Analyzing trace with hash 515608220, now seen corresponding path program 1 times [2021-11-22 15:06:38,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:38,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956450961] [2021-11-22 15:06:38,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:38,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:39,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:39,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956450961] [2021-11-22 15:06:39,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956450961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:39,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:39,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:39,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974541567] [2021-11-22 15:06:39,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:39,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:06:39,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:39,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:06:39,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:39,222 INFO L87 Difference]: Start difference. First operand has 2796 states, 2752 states have (on average 1.307049418604651) internal successors, (3597), 2795 states have internal predecessors, (3597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:39,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:39,826 INFO L93 Difference]: Finished difference Result 7596 states and 9773 transitions. [2021-11-22 15:06:39,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:06:39,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-22 15:06:39,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:39,893 INFO L225 Difference]: With dead ends: 7596 [2021-11-22 15:06:39,893 INFO L226 Difference]: Without dead ends: 4629 [2021-11-22 15:06:39,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:39,912 INFO L933 BasicCegarLoop]: 3507 mSDtfsCounter, 2930 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2930 SdHoareTripleChecker+Valid, 6691 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:39,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2930 Valid, 6691 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:06:39,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-11-22 15:06:40,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4257. [2021-11-22 15:06:40,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4257 states, 4213 states have (on average 1.249465938760978) internal successors, (5264), 4256 states have internal predecessors, (5264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4257 states to 4257 states and 5264 transitions. [2021-11-22 15:06:40,207 INFO L78 Accepts]: Start accepts. Automaton has 4257 states and 5264 transitions. Word has length 45 [2021-11-22 15:06:40,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:40,209 INFO L470 AbstractCegarLoop]: Abstraction has 4257 states and 5264 transitions. [2021-11-22 15:06:40,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:40,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4257 states and 5264 transitions. [2021-11-22 15:06:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-22 15:06:40,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:40,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:40,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:06:40,218 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:40,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:40,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1840294069, now seen corresponding path program 1 times [2021-11-22 15:06:40,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:40,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217518178] [2021-11-22 15:06:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:40,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:40,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:40,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217518178] [2021-11-22 15:06:40,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217518178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:40,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:40,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:40,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294681782] [2021-11-22 15:06:40,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:40,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:06:40,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:40,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:06:40,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:40,486 INFO L87 Difference]: Start difference. First operand 4257 states and 5264 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:40,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:40,928 INFO L93 Difference]: Finished difference Result 12349 states and 15349 transitions. [2021-11-22 15:06:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:06:40,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-22 15:06:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:40,981 INFO L225 Difference]: With dead ends: 12349 [2021-11-22 15:06:40,981 INFO L226 Difference]: Without dead ends: 8169 [2021-11-22 15:06:40,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:41,004 INFO L933 BasicCegarLoop]: 3226 mSDtfsCounter, 2935 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2935 SdHoareTripleChecker+Valid, 6409 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:41,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2935 Valid, 6409 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:41,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2021-11-22 15:06:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 8153. [2021-11-22 15:06:41,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8153 states, 8109 states have (on average 1.2510790479713898) internal successors, (10145), 8152 states have internal predecessors, (10145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:41,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8153 states to 8153 states and 10145 transitions. [2021-11-22 15:06:41,435 INFO L78 Accepts]: Start accepts. Automaton has 8153 states and 10145 transitions. Word has length 49 [2021-11-22 15:06:41,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:41,435 INFO L470 AbstractCegarLoop]: Abstraction has 8153 states and 10145 transitions. [2021-11-22 15:06:41,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 8153 states and 10145 transitions. [2021-11-22 15:06:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 15:06:41,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:41,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:06:41,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:06:41,438 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:41,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:41,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1212261421, now seen corresponding path program 1 times [2021-11-22 15:06:41,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:41,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957022629] [2021-11-22 15:06:41,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:41,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:41,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:41,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:41,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957022629] [2021-11-22 15:06:41,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957022629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:41,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:41,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:41,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48242682] [2021-11-22 15:06:41,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:41,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:06:41,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:41,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:06:41,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:41,624 INFO L87 Difference]: Start difference. First operand 8153 states and 10145 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:42,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:42,267 INFO L93 Difference]: Finished difference Result 22569 states and 28101 transitions. [2021-11-22 15:06:42,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:06:42,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-22 15:06:42,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:42,387 INFO L225 Difference]: With dead ends: 22569 [2021-11-22 15:06:42,387 INFO L226 Difference]: Without dead ends: 14493 [2021-11-22 15:06:42,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:42,415 INFO L933 BasicCegarLoop]: 3225 mSDtfsCounter, 2596 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2596 SdHoareTripleChecker+Valid, 6378 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:42,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2596 Valid, 6378 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14493 states. [2021-11-22 15:06:42,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14493 to 13801. [2021-11-22 15:06:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13801 states, 13757 states have (on average 1.2528167478374646) internal successors, (17235), 13800 states have internal predecessors, (17235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:43,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13801 states to 13801 states and 17235 transitions. [2021-11-22 15:06:43,093 INFO L78 Accepts]: Start accepts. Automaton has 13801 states and 17235 transitions. Word has length 50 [2021-11-22 15:06:43,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:43,094 INFO L470 AbstractCegarLoop]: Abstraction has 13801 states and 17235 transitions. [2021-11-22 15:06:43,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:43,094 INFO L276 IsEmpty]: Start isEmpty. Operand 13801 states and 17235 transitions. [2021-11-22 15:06:43,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 15:06:43,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:43,098 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:43,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:06:43,099 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:43,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:43,099 INFO L85 PathProgramCache]: Analyzing trace with hash -741644466, now seen corresponding path program 1 times [2021-11-22 15:06:43,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:43,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408479344] [2021-11-22 15:06:43,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:43,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:43,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:43,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408479344] [2021-11-22 15:06:43,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408479344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:43,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:43,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:43,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713271647] [2021-11-22 15:06:43,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:43,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:43,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:43,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:43,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:43,397 INFO L87 Difference]: Start difference. First operand 13801 states and 17235 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:43,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:43,877 INFO L93 Difference]: Finished difference Result 13801 states and 17235 transitions. [2021-11-22 15:06:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:43,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-22 15:06:43,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:43,915 INFO L225 Difference]: With dead ends: 13801 [2021-11-22 15:06:43,915 INFO L226 Difference]: Without dead ends: 13795 [2021-11-22 15:06:43,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:43,923 INFO L933 BasicCegarLoop]: 3223 mSDtfsCounter, 3165 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3165 SdHoareTripleChecker+Valid, 6350 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:43,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3165 Valid, 6350 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:43,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13795 states. [2021-11-22 15:06:44,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13795 to 13795. [2021-11-22 15:06:44,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13795 states, 13754 states have (on average 1.2526537734477243) internal successors, (17229), 13794 states have internal predecessors, (17229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:44,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13795 states to 13795 states and 17229 transitions. [2021-11-22 15:06:44,601 INFO L78 Accepts]: Start accepts. Automaton has 13795 states and 17229 transitions. Word has length 81 [2021-11-22 15:06:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:44,603 INFO L470 AbstractCegarLoop]: Abstraction has 13795 states and 17229 transitions. [2021-11-22 15:06:44,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:44,604 INFO L276 IsEmpty]: Start isEmpty. Operand 13795 states and 17229 transitions. [2021-11-22 15:06:44,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-22 15:06:44,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:44,610 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:44,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:06:44,610 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:44,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:44,611 INFO L85 PathProgramCache]: Analyzing trace with hash 244388049, now seen corresponding path program 1 times [2021-11-22 15:06:44,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:44,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849878510] [2021-11-22 15:06:44,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:44,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:44,935 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:44,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:44,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849878510] [2021-11-22 15:06:44,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849878510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:44,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:44,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:44,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978514090] [2021-11-22 15:06:44,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:44,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:44,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:44,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:44,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:44,945 INFO L87 Difference]: Start difference. First operand 13795 states and 17229 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:45,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:45,497 INFO L93 Difference]: Finished difference Result 13795 states and 17229 transitions. [2021-11-22 15:06:45,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:45,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-22 15:06:45,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:45,538 INFO L225 Difference]: With dead ends: 13795 [2021-11-22 15:06:45,538 INFO L226 Difference]: Without dead ends: 13789 [2021-11-22 15:06:45,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:45,545 INFO L933 BasicCegarLoop]: 3217 mSDtfsCounter, 3154 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3154 SdHoareTripleChecker+Valid, 6341 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:45,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3154 Valid, 6341 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:45,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13789 states. [2021-11-22 15:06:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13789 to 13789. [2021-11-22 15:06:46,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13789 states, 13751 states have (on average 1.2524907279470583) internal successors, (17223), 13788 states have internal predecessors, (17223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13789 states to 13789 states and 17223 transitions. [2021-11-22 15:06:46,260 INFO L78 Accepts]: Start accepts. Automaton has 13789 states and 17223 transitions. Word has length 83 [2021-11-22 15:06:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:46,260 INFO L470 AbstractCegarLoop]: Abstraction has 13789 states and 17223 transitions. [2021-11-22 15:06:46,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 13789 states and 17223 transitions. [2021-11-22 15:06:46,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-22 15:06:46,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:46,266 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:46,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:06:46,267 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:46,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:46,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1802352248, now seen corresponding path program 1 times [2021-11-22 15:06:46,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:46,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779582978] [2021-11-22 15:06:46,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:46,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:46,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:46,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:46,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779582978] [2021-11-22 15:06:46,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779582978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:46,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:46,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:46,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087207256] [2021-11-22 15:06:46,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:46,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:06:46,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:46,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:06:46,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:46,422 INFO L87 Difference]: Start difference. First operand 13789 states and 17223 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:47,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:47,112 INFO L93 Difference]: Finished difference Result 23481 states and 29386 transitions. [2021-11-22 15:06:47,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:06:47,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-22 15:06:47,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:47,136 INFO L225 Difference]: With dead ends: 23481 [2021-11-22 15:06:47,137 INFO L226 Difference]: Without dead ends: 9769 [2021-11-22 15:06:47,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:47,159 INFO L933 BasicCegarLoop]: 4164 mSDtfsCounter, 1381 mSDsluCounter, 3065 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 7229 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:47,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 7229 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:47,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9769 states. [2021-11-22 15:06:47,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9769 to 9679. [2021-11-22 15:06:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9679 states, 9641 states have (on average 1.2538118452442693) internal successors, (12088), 9678 states have internal predecessors, (12088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:47,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9679 states to 9679 states and 12088 transitions. [2021-11-22 15:06:47,478 INFO L78 Accepts]: Start accepts. Automaton has 9679 states and 12088 transitions. Word has length 83 [2021-11-22 15:06:47,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:47,478 INFO L470 AbstractCegarLoop]: Abstraction has 9679 states and 12088 transitions. [2021-11-22 15:06:47,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:47,479 INFO L276 IsEmpty]: Start isEmpty. Operand 9679 states and 12088 transitions. [2021-11-22 15:06:47,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 15:06:47,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:47,486 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:47,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 15:06:47,486 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:47,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:47,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1366137132, now seen corresponding path program 1 times [2021-11-22 15:06:47,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:47,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206551972] [2021-11-22 15:06:47,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:47,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:47,676 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:47,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:47,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206551972] [2021-11-22 15:06:47,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206551972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:47,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:47,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:47,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746945092] [2021-11-22 15:06:47,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:47,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:47,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:47,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:47,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:47,679 INFO L87 Difference]: Start difference. First operand 9679 states and 12088 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:48,173 INFO L93 Difference]: Finished difference Result 9679 states and 12088 transitions. [2021-11-22 15:06:48,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:48,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-22 15:06:48,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:48,194 INFO L225 Difference]: With dead ends: 9679 [2021-11-22 15:06:48,194 INFO L226 Difference]: Without dead ends: 9673 [2021-11-22 15:06:48,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:48,198 INFO L933 BasicCegarLoop]: 3211 mSDtfsCounter, 3146 mSDsluCounter, 3121 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3146 SdHoareTripleChecker+Valid, 6332 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:48,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3146 Valid, 6332 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:48,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9673 states. [2021-11-22 15:06:48,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9673 to 9673. [2021-11-22 15:06:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9673 states, 9638 states have (on average 1.2535795808258976) internal successors, (12082), 9672 states have internal predecessors, (12082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9673 states to 9673 states and 12082 transitions. [2021-11-22 15:06:48,528 INFO L78 Accepts]: Start accepts. Automaton has 9673 states and 12082 transitions. Word has length 85 [2021-11-22 15:06:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:48,529 INFO L470 AbstractCegarLoop]: Abstraction has 9673 states and 12082 transitions. [2021-11-22 15:06:48,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 9673 states and 12082 transitions. [2021-11-22 15:06:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-22 15:06:48,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:48,533 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:48,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 15:06:48,534 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:48,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:48,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1402358103, now seen corresponding path program 1 times [2021-11-22 15:06:48,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:48,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992954041] [2021-11-22 15:06:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:48,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:48,791 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:48,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:48,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992954041] [2021-11-22 15:06:48,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992954041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:48,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:48,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:48,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990541725] [2021-11-22 15:06:48,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:48,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:48,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:48,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:48,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:48,795 INFO L87 Difference]: Start difference. First operand 9673 states and 12082 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:49,187 INFO L93 Difference]: Finished difference Result 9673 states and 12082 transitions. [2021-11-22 15:06:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:49,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-22 15:06:49,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:49,209 INFO L225 Difference]: With dead ends: 9673 [2021-11-22 15:06:49,210 INFO L226 Difference]: Without dead ends: 9667 [2021-11-22 15:06:49,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:49,215 INFO L933 BasicCegarLoop]: 3205 mSDtfsCounter, 3138 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 6323 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:49,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3138 Valid, 6323 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:49,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2021-11-22 15:06:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 9667. [2021-11-22 15:06:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9667 states, 9635 states have (on average 1.25334717176959) internal successors, (12076), 9666 states have internal predecessors, (12076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:49,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9667 states to 9667 states and 12076 transitions. [2021-11-22 15:06:49,644 INFO L78 Accepts]: Start accepts. Automaton has 9667 states and 12076 transitions. Word has length 87 [2021-11-22 15:06:49,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:49,644 INFO L470 AbstractCegarLoop]: Abstraction has 9667 states and 12076 transitions. [2021-11-22 15:06:49,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:49,645 INFO L276 IsEmpty]: Start isEmpty. Operand 9667 states and 12076 transitions. [2021-11-22 15:06:49,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-22 15:06:49,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:49,648 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:49,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 15:06:49,648 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:49,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:49,649 INFO L85 PathProgramCache]: Analyzing trace with hash -953444262, now seen corresponding path program 1 times [2021-11-22 15:06:49,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:49,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808048599] [2021-11-22 15:06:49,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:49,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:49,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:49,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:49,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808048599] [2021-11-22 15:06:49,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808048599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:49,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:49,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:49,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65099823] [2021-11-22 15:06:49,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:49,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:49,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:49,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:49,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:49,845 INFO L87 Difference]: Start difference. First operand 9667 states and 12076 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:50,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:50,270 INFO L93 Difference]: Finished difference Result 9667 states and 12076 transitions. [2021-11-22 15:06:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:50,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-22 15:06:50,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:50,297 INFO L225 Difference]: With dead ends: 9667 [2021-11-22 15:06:50,298 INFO L226 Difference]: Without dead ends: 9661 [2021-11-22 15:06:50,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:50,304 INFO L933 BasicCegarLoop]: 3199 mSDtfsCounter, 3130 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 6314 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:50,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3130 Valid, 6314 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:50,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9661 states. [2021-11-22 15:06:50,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9661 to 9661. [2021-11-22 15:06:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9661 states, 9632 states have (on average 1.2531146179401993) internal successors, (12070), 9660 states have internal predecessors, (12070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:50,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9661 states to 9661 states and 12070 transitions. [2021-11-22 15:06:50,680 INFO L78 Accepts]: Start accepts. Automaton has 9661 states and 12070 transitions. Word has length 89 [2021-11-22 15:06:50,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:50,680 INFO L470 AbstractCegarLoop]: Abstraction has 9661 states and 12070 transitions. [2021-11-22 15:06:50,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:50,681 INFO L276 IsEmpty]: Start isEmpty. Operand 9661 states and 12070 transitions. [2021-11-22 15:06:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 15:06:50,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:50,685 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:50,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 15:06:50,686 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:50,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:50,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1431751715, now seen corresponding path program 1 times [2021-11-22 15:06:50,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:50,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948416517] [2021-11-22 15:06:50,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:50,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:50,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:50,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948416517] [2021-11-22 15:06:50,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948416517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:50,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:50,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:50,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161824414] [2021-11-22 15:06:50,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:50,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:50,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:50,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:50,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:50,907 INFO L87 Difference]: Start difference. First operand 9661 states and 12070 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:51,390 INFO L93 Difference]: Finished difference Result 9661 states and 12070 transitions. [2021-11-22 15:06:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:51,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-11-22 15:06:51,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:51,412 INFO L225 Difference]: With dead ends: 9661 [2021-11-22 15:06:51,412 INFO L226 Difference]: Without dead ends: 9655 [2021-11-22 15:06:51,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:51,417 INFO L933 BasicCegarLoop]: 3193 mSDtfsCounter, 3122 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3122 SdHoareTripleChecker+Valid, 6305 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:51,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3122 Valid, 6305 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:51,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9655 states. [2021-11-22 15:06:51,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9655 to 9655. [2021-11-22 15:06:51,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9655 states, 9629 states have (on average 1.2528819192024094) internal successors, (12064), 9654 states have internal predecessors, (12064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9655 states to 9655 states and 12064 transitions. [2021-11-22 15:06:52,011 INFO L78 Accepts]: Start accepts. Automaton has 9655 states and 12064 transitions. Word has length 91 [2021-11-22 15:06:52,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:52,012 INFO L470 AbstractCegarLoop]: Abstraction has 9655 states and 12064 transitions. [2021-11-22 15:06:52,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:52,012 INFO L276 IsEmpty]: Start isEmpty. Operand 9655 states and 12064 transitions. [2021-11-22 15:06:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-22 15:06:52,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:52,018 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:52,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 15:06:52,019 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:52,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1523713056, now seen corresponding path program 1 times [2021-11-22 15:06:52,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:52,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510888681] [2021-11-22 15:06:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:52,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:52,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:52,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510888681] [2021-11-22 15:06:52,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510888681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:52,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:52,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:52,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019827530] [2021-11-22 15:06:52,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:52,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:52,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:52,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:52,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:52,227 INFO L87 Difference]: Start difference. First operand 9655 states and 12064 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:52,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:52,798 INFO L93 Difference]: Finished difference Result 9655 states and 12064 transitions. [2021-11-22 15:06:52,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:52,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-22 15:06:52,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:52,827 INFO L225 Difference]: With dead ends: 9655 [2021-11-22 15:06:52,828 INFO L226 Difference]: Without dead ends: 9649 [2021-11-22 15:06:52,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:52,834 INFO L933 BasicCegarLoop]: 3179 mSDtfsCounter, 2686 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 6692 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:52,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2686 Valid, 6692 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:52,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2021-11-22 15:06:53,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 9649. [2021-11-22 15:06:53,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9649 states, 9626 states have (on average 1.2526490754207356) internal successors, (12058), 9648 states have internal predecessors, (12058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:53,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9649 states to 9649 states and 12058 transitions. [2021-11-22 15:06:53,359 INFO L78 Accepts]: Start accepts. Automaton has 9649 states and 12058 transitions. Word has length 93 [2021-11-22 15:06:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:53,360 INFO L470 AbstractCegarLoop]: Abstraction has 9649 states and 12058 transitions. [2021-11-22 15:06:53,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 9649 states and 12058 transitions. [2021-11-22 15:06:53,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-22 15:06:53,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:53,364 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:53,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 15:06:53,364 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:53,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:53,365 INFO L85 PathProgramCache]: Analyzing trace with hash 295751779, now seen corresponding path program 1 times [2021-11-22 15:06:53,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:53,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138506704] [2021-11-22 15:06:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:53,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:53,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:53,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138506704] [2021-11-22 15:06:53,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138506704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:53,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:53,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:53,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784726250] [2021-11-22 15:06:53,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:53,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:53,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:53,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:53,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:53,531 INFO L87 Difference]: Start difference. First operand 9649 states and 12058 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:53,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:53,997 INFO L93 Difference]: Finished difference Result 9649 states and 12058 transitions. [2021-11-22 15:06:53,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:53,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-22 15:06:53,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:54,015 INFO L225 Difference]: With dead ends: 9649 [2021-11-22 15:06:54,015 INFO L226 Difference]: Without dead ends: 9643 [2021-11-22 15:06:54,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:54,020 INFO L933 BasicCegarLoop]: 3181 mSDtfsCounter, 3106 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 6287 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:54,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3106 Valid, 6287 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:54,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9643 states. [2021-11-22 15:06:54,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9643 to 9643. [2021-11-22 15:06:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9643 states, 9623 states have (on average 1.252416086459524) internal successors, (12052), 9642 states have internal predecessors, (12052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:54,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9643 states to 9643 states and 12052 transitions. [2021-11-22 15:06:54,505 INFO L78 Accepts]: Start accepts. Automaton has 9643 states and 12052 transitions. Word has length 95 [2021-11-22 15:06:54,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:54,505 INFO L470 AbstractCegarLoop]: Abstraction has 9643 states and 12052 transitions. [2021-11-22 15:06:54,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 9643 states and 12052 transitions. [2021-11-22 15:06:54,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-22 15:06:54,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:54,510 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:54,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 15:06:54,511 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:54,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash 749769062, now seen corresponding path program 1 times [2021-11-22 15:06:54,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:54,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237395701] [2021-11-22 15:06:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:54,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:54,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:54,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:54,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237395701] [2021-11-22 15:06:54,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237395701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:54,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:54,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:54,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065640993] [2021-11-22 15:06:54,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:54,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:54,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:54,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:54,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:54,703 INFO L87 Difference]: Start difference. First operand 9643 states and 12052 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:55,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:55,188 INFO L93 Difference]: Finished difference Result 9643 states and 12052 transitions. [2021-11-22 15:06:55,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:55,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-22 15:06:55,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:55,205 INFO L225 Difference]: With dead ends: 9643 [2021-11-22 15:06:55,205 INFO L226 Difference]: Without dead ends: 9637 [2021-11-22 15:06:55,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:55,210 INFO L933 BasicCegarLoop]: 3175 mSDtfsCounter, 3098 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3098 SdHoareTripleChecker+Valid, 6278 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:55,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3098 Valid, 6278 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:55,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9637 states. [2021-11-22 15:06:55,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9637 to 9637. [2021-11-22 15:06:55,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9637 states, 9620 states have (on average 1.2521829521829522) internal successors, (12046), 9636 states have internal predecessors, (12046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:55,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9637 states to 9637 states and 12046 transitions. [2021-11-22 15:06:55,699 INFO L78 Accepts]: Start accepts. Automaton has 9637 states and 12046 transitions. Word has length 97 [2021-11-22 15:06:55,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:55,700 INFO L470 AbstractCegarLoop]: Abstraction has 9637 states and 12046 transitions. [2021-11-22 15:06:55,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:55,700 INFO L276 IsEmpty]: Start isEmpty. Operand 9637 states and 12046 transitions. [2021-11-22 15:06:55,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-22 15:06:55,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:55,704 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:55,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 15:06:55,705 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:55,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:55,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1026285847, now seen corresponding path program 1 times [2021-11-22 15:06:55,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:55,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197561663] [2021-11-22 15:06:55,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:55,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:55,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:55,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:55,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197561663] [2021-11-22 15:06:55,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197561663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:55,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:55,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:55,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112894171] [2021-11-22 15:06:55,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:55,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:55,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:55,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:55,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:55,866 INFO L87 Difference]: Start difference. First operand 9637 states and 12046 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:56,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:56,392 INFO L93 Difference]: Finished difference Result 9637 states and 12046 transitions. [2021-11-22 15:06:56,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:56,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-22 15:06:56,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:56,412 INFO L225 Difference]: With dead ends: 9637 [2021-11-22 15:06:56,412 INFO L226 Difference]: Without dead ends: 9631 [2021-11-22 15:06:56,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:56,418 INFO L933 BasicCegarLoop]: 3169 mSDtfsCounter, 3090 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3090 SdHoareTripleChecker+Valid, 6269 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:56,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3090 Valid, 6269 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:56,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9631 states. [2021-11-22 15:06:56,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9631 to 9631. [2021-11-22 15:06:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9631 states, 9617 states have (on average 1.2519496724550276) internal successors, (12040), 9630 states have internal predecessors, (12040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:56,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9631 states to 9631 states and 12040 transitions. [2021-11-22 15:06:56,840 INFO L78 Accepts]: Start accepts. Automaton has 9631 states and 12040 transitions. Word has length 99 [2021-11-22 15:06:56,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:56,841 INFO L470 AbstractCegarLoop]: Abstraction has 9631 states and 12040 transitions. [2021-11-22 15:06:56,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 9631 states and 12040 transitions. [2021-11-22 15:06:56,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 15:06:56,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:56,845 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:56,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 15:06:56,846 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:56,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:56,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1581930732, now seen corresponding path program 1 times [2021-11-22 15:06:56,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:56,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430220919] [2021-11-22 15:06:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:56,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:57,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:57,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430220919] [2021-11-22 15:06:57,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430220919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:57,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:57,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:57,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247885145] [2021-11-22 15:06:57,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:57,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:57,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:57,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:57,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:57,062 INFO L87 Difference]: Start difference. First operand 9631 states and 12040 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:57,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:57,664 INFO L93 Difference]: Finished difference Result 9631 states and 12040 transitions. [2021-11-22 15:06:57,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:57,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-22 15:06:57,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:57,680 INFO L225 Difference]: With dead ends: 9631 [2021-11-22 15:06:57,680 INFO L226 Difference]: Without dead ends: 9625 [2021-11-22 15:06:57,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:57,688 INFO L933 BasicCegarLoop]: 3163 mSDtfsCounter, 3082 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 6260 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:57,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3082 Valid, 6260 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:57,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9625 states. [2021-11-22 15:06:58,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9625 to 9625. [2021-11-22 15:06:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9625 states, 9614 states have (on average 1.2517162471395882) internal successors, (12034), 9624 states have internal predecessors, (12034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:58,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9625 states to 9625 states and 12034 transitions. [2021-11-22 15:06:58,203 INFO L78 Accepts]: Start accepts. Automaton has 9625 states and 12034 transitions. Word has length 101 [2021-11-22 15:06:58,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:58,204 INFO L470 AbstractCegarLoop]: Abstraction has 9625 states and 12034 transitions. [2021-11-22 15:06:58,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:58,204 INFO L276 IsEmpty]: Start isEmpty. Operand 9625 states and 12034 transitions. [2021-11-22 15:06:58,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-22 15:06:58,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:58,208 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-22 15:06:58,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 15:06:58,208 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:58,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:58,209 INFO L85 PathProgramCache]: Analyzing trace with hash -182837393, now seen corresponding path program 1 times [2021-11-22 15:06:58,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:58,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430067659] [2021-11-22 15:06:58,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:58,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 15:06:58,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:58,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430067659] [2021-11-22 15:06:58,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430067659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:58,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:58,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:58,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903757473] [2021-11-22 15:06:58,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:58,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:06:58,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:58,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:06:58,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:06:58,380 INFO L87 Difference]: Start difference. First operand 9625 states and 12034 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:58,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:06:58,891 INFO L93 Difference]: Finished difference Result 9625 states and 12034 transitions. [2021-11-22 15:06:58,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:06:58,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-22 15:06:58,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:06:58,904 INFO L225 Difference]: With dead ends: 9625 [2021-11-22 15:06:58,904 INFO L226 Difference]: Without dead ends: 9523 [2021-11-22 15:06:58,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:06:58,908 INFO L933 BasicCegarLoop]: 3160 mSDtfsCounter, 3071 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3071 SdHoareTripleChecker+Valid, 6254 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:06:58,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3071 Valid, 6254 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:06:58,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2021-11-22 15:06:59,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 9523. [2021-11-22 15:06:59,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9523 states, 9515 states have (on average 1.2518129269574356) internal successors, (11911), 9522 states have internal predecessors, (11911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9523 states to 9523 states and 11911 transitions. [2021-11-22 15:06:59,377 INFO L78 Accepts]: Start accepts. Automaton has 9523 states and 11911 transitions. Word has length 103 [2021-11-22 15:06:59,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:06:59,377 INFO L470 AbstractCegarLoop]: Abstraction has 9523 states and 11911 transitions. [2021-11-22 15:06:59,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:06:59,378 INFO L276 IsEmpty]: Start isEmpty. Operand 9523 states and 11911 transitions. [2021-11-22 15:06:59,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 15:06:59,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:06:59,382 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2021-11-22 15:06:59,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-22 15:06:59,383 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:06:59,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:06:59,383 INFO L85 PathProgramCache]: Analyzing trace with hash -688168535, now seen corresponding path program 1 times [2021-11-22 15:06:59,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:06:59,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777048596] [2021-11-22 15:06:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:06:59,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:06:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:06:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:06:59,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:06:59,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777048596] [2021-11-22 15:06:59,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777048596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:06:59,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:06:59,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:06:59,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453668233] [2021-11-22 15:06:59,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:06:59,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:06:59,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:06:59,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:06:59,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:06:59,506 INFO L87 Difference]: Start difference. First operand 9523 states and 11911 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:00,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:00,180 INFO L93 Difference]: Finished difference Result 21197 states and 26591 transitions. [2021-11-22 15:07:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:07:00,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-11-22 15:07:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:00,195 INFO L225 Difference]: With dead ends: 21197 [2021-11-22 15:07:00,195 INFO L226 Difference]: Without dead ends: 11929 [2021-11-22 15:07:00,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:00,212 INFO L933 BasicCegarLoop]: 4286 mSDtfsCounter, 1228 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 7281 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:00,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 7281 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:07:00,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11929 states. [2021-11-22 15:07:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11929 to 11897. [2021-11-22 15:07:00,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11897 states, 11889 states have (on average 1.2533434266969468) internal successors, (14901), 11896 states have internal predecessors, (14901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:00,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11897 states to 11897 states and 14901 transitions. [2021-11-22 15:07:00,679 INFO L78 Accepts]: Start accepts. Automaton has 11897 states and 14901 transitions. Word has length 119 [2021-11-22 15:07:00,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:00,679 INFO L470 AbstractCegarLoop]: Abstraction has 11897 states and 14901 transitions. [2021-11-22 15:07:00,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:00,679 INFO L276 IsEmpty]: Start isEmpty. Operand 11897 states and 14901 transitions. [2021-11-22 15:07:00,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-22 15:07:00,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:00,684 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:00,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-22 15:07:00,685 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:00,685 INFO L85 PathProgramCache]: Analyzing trace with hash -320027780, now seen corresponding path program 1 times [2021-11-22 15:07:00,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:00,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971351861] [2021-11-22 15:07:00,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:00,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:00,816 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 15:07:00,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:00,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971351861] [2021-11-22 15:07:00,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971351861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:00,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:00,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:07:00,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95989793] [2021-11-22 15:07:00,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:00,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:07:00,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:00,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:07:00,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:00,819 INFO L87 Difference]: Start difference. First operand 11897 states and 14901 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:01,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:01,584 INFO L93 Difference]: Finished difference Result 25933 states and 32543 transitions. [2021-11-22 15:07:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:07:01,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-22 15:07:01,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:01,608 INFO L225 Difference]: With dead ends: 25933 [2021-11-22 15:07:01,608 INFO L226 Difference]: Without dead ends: 14291 [2021-11-22 15:07:01,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:01,623 INFO L933 BasicCegarLoop]: 4287 mSDtfsCounter, 1223 mSDsluCounter, 3009 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 7296 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:01,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1223 Valid, 7296 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:07:01,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14291 states. [2021-11-22 15:07:02,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14291 to 14259. [2021-11-22 15:07:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14259 states, 14251 states have (on average 1.254578626061329) internal successors, (17879), 14258 states have internal predecessors, (17879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:02,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14259 states to 14259 states and 17879 transitions. [2021-11-22 15:07:02,174 INFO L78 Accepts]: Start accepts. Automaton has 14259 states and 17879 transitions. Word has length 157 [2021-11-22 15:07:02,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:02,175 INFO L470 AbstractCegarLoop]: Abstraction has 14259 states and 17879 transitions. [2021-11-22 15:07:02,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:02,175 INFO L276 IsEmpty]: Start isEmpty. Operand 14259 states and 17879 transitions. [2021-11-22 15:07:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-22 15:07:02,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:02,178 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:02,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-22 15:07:02,179 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:02,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:02,179 INFO L85 PathProgramCache]: Analyzing trace with hash 123872894, now seen corresponding path program 1 times [2021-11-22 15:07:02,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:02,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299244483] [2021-11-22 15:07:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:02,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 15:07:02,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:02,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299244483] [2021-11-22 15:07:02,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299244483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:02,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:02,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:07:02,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972908542] [2021-11-22 15:07:02,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:02,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:07:02,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:02,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:07:02,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:02,318 INFO L87 Difference]: Start difference. First operand 14259 states and 17879 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:03,545 INFO L93 Difference]: Finished difference Result 30669 states and 38523 transitions. [2021-11-22 15:07:03,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:07:03,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-22 15:07:03,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:03,573 INFO L225 Difference]: With dead ends: 30669 [2021-11-22 15:07:03,573 INFO L226 Difference]: Without dead ends: 16665 [2021-11-22 15:07:03,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:03,595 INFO L933 BasicCegarLoop]: 4287 mSDtfsCounter, 1776 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 6746 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:03,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1776 Valid, 6746 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:07:03,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16665 states. [2021-11-22 15:07:04,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16665 to 16633. [2021-11-22 15:07:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16633 states, 16625 states have (on average 1.2552781954887218) internal successors, (20869), 16632 states have internal predecessors, (20869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:04,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16633 states to 16633 states and 20869 transitions. [2021-11-22 15:07:04,342 INFO L78 Accepts]: Start accepts. Automaton has 16633 states and 20869 transitions. Word has length 157 [2021-11-22 15:07:04,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:04,342 INFO L470 AbstractCegarLoop]: Abstraction has 16633 states and 20869 transitions. [2021-11-22 15:07:04,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:04,343 INFO L276 IsEmpty]: Start isEmpty. Operand 16633 states and 20869 transitions. [2021-11-22 15:07:04,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-22 15:07:04,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:04,347 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:04,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-22 15:07:04,347 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:04,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:04,348 INFO L85 PathProgramCache]: Analyzing trace with hash 585451470, now seen corresponding path program 1 times [2021-11-22 15:07:04,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:04,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226111015] [2021-11-22 15:07:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:04,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-22 15:07:04,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:04,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226111015] [2021-11-22 15:07:04,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226111015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:04,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:04,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:07:04,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659268828] [2021-11-22 15:07:04,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:04,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:07:04,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:04,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:07:04,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:04,532 INFO L87 Difference]: Start difference. First operand 16633 states and 20869 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:05,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:05,523 INFO L93 Difference]: Finished difference Result 35409 states and 44487 transitions. [2021-11-22 15:07:05,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:07:05,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2021-11-22 15:07:05,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:05,547 INFO L225 Difference]: With dead ends: 35409 [2021-11-22 15:07:05,547 INFO L226 Difference]: Without dead ends: 19031 [2021-11-22 15:07:05,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:05,562 INFO L933 BasicCegarLoop]: 3749 mSDtfsCounter, 1226 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 6756 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:05,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 6756 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:07:05,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19031 states. [2021-11-22 15:07:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19031 to 18999. [2021-11-22 15:07:06,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18999 states, 18991 states have (on average 1.2559106945395186) internal successors, (23851), 18998 states have internal predecessors, (23851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:06,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18999 states to 18999 states and 23851 transitions. [2021-11-22 15:07:06,286 INFO L78 Accepts]: Start accepts. Automaton has 18999 states and 23851 transitions. Word has length 194 [2021-11-22 15:07:06,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:06,287 INFO L470 AbstractCegarLoop]: Abstraction has 18999 states and 23851 transitions. [2021-11-22 15:07:06,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:06,287 INFO L276 IsEmpty]: Start isEmpty. Operand 18999 states and 23851 transitions. [2021-11-22 15:07:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-22 15:07:06,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:06,292 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:06,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-22 15:07:06,292 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:06,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:06,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1029352144, now seen corresponding path program 1 times [2021-11-22 15:07:06,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:06,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597385941] [2021-11-22 15:07:06,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:06,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-22 15:07:06,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:06,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597385941] [2021-11-22 15:07:06,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597385941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:06,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:06,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:07:06,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831459884] [2021-11-22 15:07:06,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:06,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:07:06,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:06,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:07:06,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:06,447 INFO L87 Difference]: Start difference. First operand 18999 states and 23851 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:07,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:07,648 INFO L93 Difference]: Finished difference Result 40145 states and 50459 transitions. [2021-11-22 15:07:07,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:07:07,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2021-11-22 15:07:07,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:07,678 INFO L225 Difference]: With dead ends: 40145 [2021-11-22 15:07:07,679 INFO L226 Difference]: Without dead ends: 21401 [2021-11-22 15:07:07,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:07,699 INFO L933 BasicCegarLoop]: 4287 mSDtfsCounter, 1235 mSDsluCounter, 2999 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 7286 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:07,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 7286 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:07:07,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21401 states. [2021-11-22 15:07:08,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21401 to 21369. [2021-11-22 15:07:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21369 states, 21361 states have (on average 1.2563550395580732) internal successors, (26837), 21368 states have internal predecessors, (26837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21369 states to 21369 states and 26837 transitions. [2021-11-22 15:07:08,668 INFO L78 Accepts]: Start accepts. Automaton has 21369 states and 26837 transitions. Word has length 194 [2021-11-22 15:07:08,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:08,668 INFO L470 AbstractCegarLoop]: Abstraction has 21369 states and 26837 transitions. [2021-11-22 15:07:08,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:08,669 INFO L276 IsEmpty]: Start isEmpty. Operand 21369 states and 26837 transitions. [2021-11-22 15:07:08,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-22 15:07:08,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:08,677 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:08,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-22 15:07:08,677 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:08,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:08,678 INFO L85 PathProgramCache]: Analyzing trace with hash 70159406, now seen corresponding path program 1 times [2021-11-22 15:07:08,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:08,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017555210] [2021-11-22 15:07:08,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:08,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-22 15:07:08,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:08,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017555210] [2021-11-22 15:07:08,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017555210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:08,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:08,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:07:08,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470416503] [2021-11-22 15:07:08,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:08,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:07:08,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:08,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:07:08,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:07:08,841 INFO L87 Difference]: Start difference. First operand 21369 states and 26837 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:11,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:11,097 INFO L93 Difference]: Finished difference Result 65875 states and 82775 transitions. [2021-11-22 15:07:11,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:07:11,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2021-11-22 15:07:11,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:11,160 INFO L225 Difference]: With dead ends: 65875 [2021-11-22 15:07:11,160 INFO L226 Difference]: Without dead ends: 44761 [2021-11-22 15:07:11,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:07:11,191 INFO L933 BasicCegarLoop]: 6094 mSDtfsCounter, 5645 mSDsluCounter, 8285 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5645 SdHoareTripleChecker+Valid, 14379 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:11,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5645 Valid, 14379 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:07:11,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44761 states. [2021-11-22 15:07:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44761 to 23711. [2021-11-22 15:07:12,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23711 states, 23703 states have (on average 1.2570138800995654) internal successors, (29795), 23710 states have internal predecessors, (29795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:12,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23711 states to 23711 states and 29795 transitions. [2021-11-22 15:07:12,825 INFO L78 Accepts]: Start accepts. Automaton has 23711 states and 29795 transitions. Word has length 222 [2021-11-22 15:07:12,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:12,826 INFO L470 AbstractCegarLoop]: Abstraction has 23711 states and 29795 transitions. [2021-11-22 15:07:12,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:12,826 INFO L276 IsEmpty]: Start isEmpty. Operand 23711 states and 29795 transitions. [2021-11-22 15:07:12,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-22 15:07:12,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:12,832 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:12,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-22 15:07:12,833 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:12,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:12,833 INFO L85 PathProgramCache]: Analyzing trace with hash -878279669, now seen corresponding path program 1 times [2021-11-22 15:07:12,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:12,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717199103] [2021-11-22 15:07:12,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:12,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-22 15:07:13,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:13,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717199103] [2021-11-22 15:07:13,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717199103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:13,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:13,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:07:13,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538188118] [2021-11-22 15:07:13,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:13,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:07:13,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:13,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:07:13,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:07:13,015 INFO L87 Difference]: Start difference. First operand 23711 states and 29795 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:15,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:15,643 INFO L93 Difference]: Finished difference Result 70579 states and 88731 transitions. [2021-11-22 15:07:15,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:07:15,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2021-11-22 15:07:15,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:15,715 INFO L225 Difference]: With dead ends: 70579 [2021-11-22 15:07:15,715 INFO L226 Difference]: Without dead ends: 47123 [2021-11-22 15:07:15,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:07:15,743 INFO L933 BasicCegarLoop]: 5997 mSDtfsCounter, 5418 mSDsluCounter, 8945 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5418 SdHoareTripleChecker+Valid, 14942 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:15,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5418 Valid, 14942 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:07:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47123 states. [2021-11-22 15:07:17,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47123 to 26073. [2021-11-22 15:07:17,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26073 states, 26065 states have (on average 1.257356608478803) internal successors, (32773), 26072 states have internal predecessors, (32773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:17,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26073 states to 26073 states and 32773 transitions. [2021-11-22 15:07:17,352 INFO L78 Accepts]: Start accepts. Automaton has 26073 states and 32773 transitions. Word has length 223 [2021-11-22 15:07:17,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:17,352 INFO L470 AbstractCegarLoop]: Abstraction has 26073 states and 32773 transitions. [2021-11-22 15:07:17,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 26073 states and 32773 transitions. [2021-11-22 15:07:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-22 15:07:17,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:17,358 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:17,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-22 15:07:17,358 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:17,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:17,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1553890097, now seen corresponding path program 1 times [2021-11-22 15:07:17,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:17,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819256710] [2021-11-22 15:07:17,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:17,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-22 15:07:17,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:17,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819256710] [2021-11-22 15:07:17,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819256710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:17,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:17,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:07:17,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571599154] [2021-11-22 15:07:17,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:17,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:07:17,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:17,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:07:17,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:07:17,513 INFO L87 Difference]: Start difference. First operand 26073 states and 32773 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:20,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:20,600 INFO L93 Difference]: Finished difference Result 75299 states and 94691 transitions. [2021-11-22 15:07:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:07:20,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2021-11-22 15:07:20,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:20,686 INFO L225 Difference]: With dead ends: 75299 [2021-11-22 15:07:20,686 INFO L226 Difference]: Without dead ends: 49481 [2021-11-22 15:07:20,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:07:20,714 INFO L933 BasicCegarLoop]: 6429 mSDtfsCounter, 4979 mSDsluCounter, 8963 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4979 SdHoareTripleChecker+Valid, 15392 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:20,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4979 Valid, 15392 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:07:20,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49481 states. [2021-11-22 15:07:22,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49481 to 28431. [2021-11-22 15:07:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28431 states, 28423 states have (on average 1.2576786405375928) internal successors, (35747), 28430 states have internal predecessors, (35747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:23,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28431 states to 28431 states and 35747 transitions. [2021-11-22 15:07:23,092 INFO L78 Accepts]: Start accepts. Automaton has 28431 states and 35747 transitions. Word has length 224 [2021-11-22 15:07:23,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:23,093 INFO L470 AbstractCegarLoop]: Abstraction has 28431 states and 35747 transitions. [2021-11-22 15:07:23,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:23,093 INFO L276 IsEmpty]: Start isEmpty. Operand 28431 states and 35747 transitions. [2021-11-22 15:07:23,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-22 15:07:23,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:23,100 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:23,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-22 15:07:23,101 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:23,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:23,101 INFO L85 PathProgramCache]: Analyzing trace with hash 622185767, now seen corresponding path program 1 times [2021-11-22 15:07:23,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:23,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131275642] [2021-11-22 15:07:23,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:23,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-11-22 15:07:23,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:23,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131275642] [2021-11-22 15:07:23,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131275642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:23,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:23,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:07:23,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285437825] [2021-11-22 15:07:23,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:23,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:07:23,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:23,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:07:23,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:23,254 INFO L87 Difference]: Start difference. First operand 28431 states and 35747 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:25,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:25,644 INFO L93 Difference]: Finished difference Result 58965 states and 74163 transitions. [2021-11-22 15:07:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:07:25,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2021-11-22 15:07:25,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:25,686 INFO L225 Difference]: With dead ends: 58965 [2021-11-22 15:07:25,686 INFO L226 Difference]: Without dead ends: 30789 [2021-11-22 15:07:25,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:25,713 INFO L933 BasicCegarLoop]: 4287 mSDtfsCounter, 1389 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 7124 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:25,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1389 Valid, 7124 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:07:25,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30789 states. [2021-11-22 15:07:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30789 to 30757. [2021-11-22 15:07:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30757 states, 30749 states have (on average 1.2582197795050245) internal successors, (38689), 30756 states have internal predecessors, (38689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:27,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30757 states to 30757 states and 38689 transitions. [2021-11-22 15:07:27,850 INFO L78 Accepts]: Start accepts. Automaton has 30757 states and 38689 transitions. Word has length 236 [2021-11-22 15:07:27,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:27,851 INFO L470 AbstractCegarLoop]: Abstraction has 30757 states and 38689 transitions. [2021-11-22 15:07:27,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:27,851 INFO L276 IsEmpty]: Start isEmpty. Operand 30757 states and 38689 transitions. [2021-11-22 15:07:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-22 15:07:27,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:27,862 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:27,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-22 15:07:27,862 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:27,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:27,863 INFO L85 PathProgramCache]: Analyzing trace with hash 935530038, now seen corresponding path program 1 times [2021-11-22 15:07:27,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:27,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855254795] [2021-11-22 15:07:27,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:27,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-22 15:07:28,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:28,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855254795] [2021-11-22 15:07:28,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855254795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:28,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:28,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:07:28,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951976386] [2021-11-22 15:07:28,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:28,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:07:28,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:28,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:07:28,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:28,146 INFO L87 Difference]: Start difference. First operand 30757 states and 38689 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:30,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:07:30,304 INFO L93 Difference]: Finished difference Result 63645 states and 80103 transitions. [2021-11-22 15:07:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:07:30,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2021-11-22 15:07:30,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:07:30,359 INFO L225 Difference]: With dead ends: 63645 [2021-11-22 15:07:30,359 INFO L226 Difference]: Without dead ends: 33143 [2021-11-22 15:07:30,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:30,385 INFO L933 BasicCegarLoop]: 4287 mSDtfsCounter, 1229 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 7288 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:07:30,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 7288 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:07:30,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33143 states. [2021-11-22 15:07:32,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33143 to 33111. [2021-11-22 15:07:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33111 states, 33103 states have (on average 1.2584660000604175) internal successors, (41659), 33110 states have internal predecessors, (41659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:32,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33111 states to 33111 states and 41659 transitions. [2021-11-22 15:07:32,716 INFO L78 Accepts]: Start accepts. Automaton has 33111 states and 41659 transitions. Word has length 243 [2021-11-22 15:07:32,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:07:32,717 INFO L470 AbstractCegarLoop]: Abstraction has 33111 states and 41659 transitions. [2021-11-22 15:07:32,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:07:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 33111 states and 41659 transitions. [2021-11-22 15:07:32,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-22 15:07:32,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:07:32,723 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:07:32,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-22 15:07:32,723 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-22 15:07:32,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:07:32,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1114138380, now seen corresponding path program 1 times [2021-11-22 15:07:32,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:07:32,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068782621] [2021-11-22 15:07:32,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:07:32,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:07:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:07:32,883 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-22 15:07:32,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:07:32,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068782621] [2021-11-22 15:07:32,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068782621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:07:32,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:07:32,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:07:32,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499869304] [2021-11-22 15:07:32,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:07:32,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:07:32,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:07:32,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:07:32,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:07:32,886 INFO L87 Difference]: Start difference. First operand 33111 states and 41659 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)