./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a --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 73868717431db2e2213c78014bba9664fa2a1aea672a285381bce5667bb4d0d4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 09:09:35,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:09:35,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:09:35,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:09:35,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:09:35,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:09:35,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:09:35,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:09:35,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:09:35,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:09:35,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:09:35,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:09:35,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:09:35,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:09:35,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:09:35,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:09:35,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:09:35,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:09:35,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:09:35,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:09:35,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:09:35,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:09:35,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:09:35,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:09:35,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:09:35,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:09:35,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:09:35,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:09:35,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:09:35,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:09:35,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:09:35,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:09:35,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:09:35,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:09:35,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:09:35,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:09:35,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:09:35,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:09:35,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:09:35,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:09:35,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:09:35,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 09:09:35,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:09:35,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:09:35,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:09:35,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:09:35,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:09:35,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:09:35,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:09:35,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:09:35,744 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:09:35,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:09:35,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:09:35,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:09:35,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:09:35,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:09:35,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:09:35,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:09:35,748 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:09:35,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:09:35,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:09:35,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:09:35,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:09:35,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:09:35,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:09:35,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:09:35,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:09:35,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:09:35,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:09:35,751 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:09:35,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:09:35,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:09:35,752 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_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73868717431db2e2213c78014bba9664fa2a1aea672a285381bce5667bb4d0d4 [2022-11-21 09:09:36,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:09:36,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:09:36,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:09:36,194 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:09:36,195 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:09:36,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i [2022-11-21 09:09:39,613 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:09:40,557 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:09:40,558 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i [2022-11-21 09:09:40,644 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/data/8d4b4137f/58b62112702d494ba51658cf927bb034/FLAGaa9b2d467 [2022-11-21 09:09:40,668 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/data/8d4b4137f/58b62112702d494ba51658cf927bb034 [2022-11-21 09:09:40,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:09:40,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:09:40,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:09:40,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:09:40,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:09:40,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:09:40" (1/1) ... [2022-11-21 09:09:40,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c571c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:40, skipping insertion in model container [2022-11-21 09:09:40,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:09:40" (1/1) ... [2022-11-21 09:09:40,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:09:40,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:09:45,527 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i[421155,421168] [2022-11-21 09:09:45,536 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i[421302,421315] [2022-11-21 09:09:45,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i[421441,421454] [2022-11-21 09:09:45,538 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i[421599,421612] [2022-11-21 09:09:45,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:09:45,637 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:09:46,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i[421155,421168] [2022-11-21 09:09:46,252 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i[421302,421315] [2022-11-21 09:09:46,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i[421441,421454] [2022-11-21 09:09:46,254 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i[421599,421612] [2022-11-21 09:09:46,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:09:46,718 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:09:46,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46 WrapperNode [2022-11-21 09:09:46,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:09:46,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:09:46,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:09:46,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:09:46,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:46,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,180 INFO L138 Inliner]: procedures = 535, calls = 2716, calls flagged for inlining = 309, calls inlined = 257, statements flattened = 6026 [2022-11-21 09:09:47,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:09:47,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:09:47,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:09:47,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:09:47,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:09:47,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:09:47,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:09:47,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:09:47,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (1/1) ... [2022-11-21 09:09:47,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:09:47,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:09:47,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:09:47,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa915745-cdd5-4d85-8f41-ef0e2e5d72e1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:09:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-21 09:09:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-21 09:09:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-21 09:09:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-21 09:09:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-21 09:09:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-21 09:09:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-21 09:09:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-21 09:09:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-11-21 09:09:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-11-21 09:09:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 09:09:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 09:09:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-11-21 09:09:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-11-21 09:09:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-21 09:09:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-21 09:09:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-11-21 09:09:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-11-21 09:09:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 09:09:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 09:09:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 09:09:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 09:09:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-11-21 09:09:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-11-21 09:09:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-11-21 09:09:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-11-21 09:09:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-21 09:09:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-21 09:09:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-21 09:09:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-21 09:09:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-21 09:09:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-21 09:09:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-21 09:09:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-21 09:09:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-11-21 09:09:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-11-21 09:09:47,775 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 09:09:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 09:09:47,775 INFO L130 BoogieDeclarations]: Found specification of procedure jme_netpoll [2022-11-21 09:09:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_netpoll [2022-11-21 09:09:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-21 09:09:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-21 09:09:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-21 09:09:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-21 09:09:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-21 09:09:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-21 09:09:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-21 09:09:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-21 09:09:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-21 09:09:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-21 09:09:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-21 09:09:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-21 09:09:47,779 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-21 09:09:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-21 09:09:47,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-21 09:09:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-21 09:09:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-21 09:09:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:09:47,781 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-21 09:09:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-21 09:09:47,781 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-11-21 09:09:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-11-21 09:09:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-21 09:09:47,782 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-21 09:09:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-21 09:09:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 09:09:47,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 09:09:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-11-21 09:09:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-11-21 09:09:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-21 09:09:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-21 09:09:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-21 09:09:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-21 09:09:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 09:09:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-11-21 09:09:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-11-21 09:09:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 09:09:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 09:09:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 09:09:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 09:09:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 09:09:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-21 09:09:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-21 09:09:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_calibration [2022-11-21 09:09:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_calibration [2022-11-21 09:09:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:09:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-21 09:09:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-21 09:09:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-11-21 09:09:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-11-21 09:09:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 09:09:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 09:09:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-21 09:09:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-21 09:09:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-21 09:09:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-21 09:09:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-21 09:09:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-21 09:09:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-11-21 09:09:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-11-21 09:09:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-21 09:09:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-21 09:09:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-21 09:09:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-21 09:09:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-11-21 09:09:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-11-21 09:09:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-11-21 09:09:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-11-21 09:09:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-11-21 09:09:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-11-21 09:09:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:09:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-21 09:09:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-21 09:09:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-21 09:09:47,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-21 09:09:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-21 09:09:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-21 09:09:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-21 09:09:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-21 09:09:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-11-21 09:09:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-11-21 09:09:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:09:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-21 09:09:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-21 09:09:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 09:09:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 09:09:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 09:09:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-21 09:09:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-21 09:09:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 09:09:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 09:09:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-21 09:09:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-21 09:09:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-21 09:09:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-21 09:09:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-21 09:09:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-21 09:09:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-11-21 09:09:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-11-21 09:09:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 09:09:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 09:09:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-21 09:09:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-21 09:09:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-21 09:09:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-21 09:09:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-21 09:09:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-21 09:09:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-11-21 09:09:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-11-21 09:09:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-21 09:09:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-21 09:09:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:09:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:09:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-21 09:09:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-21 09:09:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-21 09:09:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-21 09:09:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-11-21 09:09:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-11-21 09:09:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-11-21 09:09:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-11-21 09:09:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-21 09:09:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-21 09:09:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-11-21 09:09:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-11-21 09:09:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 09:09:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-11-21 09:09:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-11-21 09:09:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 09:09:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 09:09:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 09:09:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure jme_remove_one [2022-11-21 09:09:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_remove_one [2022-11-21 09:09:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-11-21 09:09:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-11-21 09:09:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-11-21 09:09:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-11-21 09:09:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-21 09:09:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-21 09:09:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-11-21 09:09:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-11-21 09:09:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-21 09:09:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-21 09:09:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-21 09:09:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-21 09:09:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure jme_intr_msi [2022-11-21 09:09:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_intr_msi [2022-11-21 09:09:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-11-21 09:09:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-11-21 09:09:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-11-21 09:09:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-11-21 09:09:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-11-21 09:09:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-11-21 09:09:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-21 09:09:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-21 09:09:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-21 09:09:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-21 09:09:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 09:09:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 09:09:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 09:09:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 09:09:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-21 09:09:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-21 09:09:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-21 09:09:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-21 09:09:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-11-21 09:09:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-11-21 09:09:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-21 09:09:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-21 09:09:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:09:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-21 09:09:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-21 09:09:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-21 09:09:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-21 09:09:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-21 09:09:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-21 09:09:47,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 09:09:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-11-21 09:09:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-11-21 09:09:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-11-21 09:09:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-11-21 09:09:47,831 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-11-21 09:09:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-11-21 09:09:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 09:09:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-11-21 09:09:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-11-21 09:09:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-21 09:09:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-21 09:09:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-21 09:09:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-21 09:09:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 09:09:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 09:09:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-21 09:09:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-21 09:09:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-11-21 09:09:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-11-21 09:09:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_setEA [2022-11-21 09:09:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_setEA [2022-11-21 09:09:47,834 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-21 09:09:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-21 09:09:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-11-21 09:09:47,840 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-11-21 09:09:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-21 09:09:47,841 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-21 09:09:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-11-21 09:09:47,841 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-11-21 09:09:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-21 09:09:47,841 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-21 09:09:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 09:09:47,842 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 09:09:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_read [2022-11-21 09:09:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_read [2022-11-21 09:09:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-11-21 09:09:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-11-21 09:09:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-11-21 09:09:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-11-21 09:09:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-11-21 09:09:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-11-21 09:09:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 09:09:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 09:09:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-21 09:09:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-21 09:09:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-11-21 09:09:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-11-21 09:09:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 09:09:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 09:09:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure jme_shutdown [2022-11-21 09:09:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_shutdown [2022-11-21 09:09:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:09:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-11-21 09:09:47,848 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-11-21 09:09:47,848 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-11-21 09:09:47,848 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-11-21 09:09:47,848 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-11-21 09:09:47,848 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-11-21 09:09:47,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 09:09:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 09:09:47,849 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-21 09:09:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-21 09:09:47,849 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_write [2022-11-21 09:09:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_write [2022-11-21 09:09:47,849 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-21 09:09:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-21 09:09:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-11-21 09:09:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-11-21 09:09:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-11-21 09:09:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-11-21 09:09:47,850 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-21 09:09:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-21 09:09:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-21 09:09:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-21 09:09:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-11-21 09:09:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-11-21 09:09:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-21 09:09:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-21 09:09:47,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-21 09:09:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-21 09:09:47,852 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-11-21 09:09:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-11-21 09:09:47,852 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-11-21 09:09:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-11-21 09:09:47,852 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-11-21 09:09:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-11-21 09:09:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-11-21 09:09:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-11-21 09:09:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-21 09:09:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-21 09:09:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-21 09:09:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-21 09:09:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:09:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-11-21 09:09:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-11-21 09:09:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-21 09:09:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-21 09:09:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-21 09:09:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-21 09:09:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-11-21 09:09:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-11-21 09:09:49,222 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:09:49,241 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:09:50,032 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 09:09:56,909 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-21 09:09:57,191 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:09:57,227 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:09:57,229 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 09:09:57,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:09:57 BoogieIcfgContainer [2022-11-21 09:09:57,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:09:57,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:09:57,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:09:57,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:09:57,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:09:40" (1/3) ... [2022-11-21 09:09:57,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d375bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:09:57, skipping insertion in model container [2022-11-21 09:09:57,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:46" (2/3) ... [2022-11-21 09:09:57,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d375bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:09:57, skipping insertion in model container [2022-11-21 09:09:57,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:09:57" (3/3) ... [2022-11-21 09:09:57,251 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-jme.cil.i [2022-11-21 09:09:57,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:09:57,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 09:09:57,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:09:57,441 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55d6eab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:09:57,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-21 09:09:57,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 2610 states, 1756 states have (on average 1.2665148063781322) internal successors, (2224), 1806 states have internal predecessors, (2224), 707 states have call successors, (707), 150 states have call predecessors, (707), 149 states have return successors, (698), 682 states have call predecessors, (698), 698 states have call successors, (698) [2022-11-21 09:09:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-21 09:09:57,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:09:57,534 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:09:57,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:09:57,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:09:57,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1462992568, now seen corresponding path program 1 times [2022-11-21 09:09:57,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:09:57,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655998929] [2022-11-21 09:09:57,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:09:57,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:09:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:09:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:09:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:09:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:09:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:09:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:09:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:09:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:09:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:09:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:09:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:09:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:09:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:09:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:09:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:09:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:09:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:09:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:09:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:09:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:09:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-21 09:09:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:09:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2022-11-21 09:09:59,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:09:59,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655998929] [2022-11-21 09:09:59,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655998929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:09:59,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:09:59,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:09:59,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898689244] [2022-11-21 09:09:59,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:09:59,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:09:59,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:09:59,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:09:59,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:09:59,654 INFO L87 Difference]: Start difference. First operand has 2610 states, 1756 states have (on average 1.2665148063781322) internal successors, (2224), 1806 states have internal predecessors, (2224), 707 states have call successors, (707), 150 states have call predecessors, (707), 149 states have return successors, (698), 682 states have call predecessors, (698), 698 states have call successors, (698) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-21 09:10:04,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:10:15,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:15,343 INFO L93 Difference]: Finished difference Result 7855 states and 11154 transitions. [2022-11-21 09:10:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:10:15,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 225 [2022-11-21 09:10:15,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:15,428 INFO L225 Difference]: With dead ends: 7855 [2022-11-21 09:10:15,428 INFO L226 Difference]: Without dead ends: 5272 [2022-11-21 09:10:15,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:10:15,467 INFO L413 NwaCegarLoop]: 2839 mSDtfsCounter, 4676 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 3987 mSolverCounterSat, 2141 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5329 SdHoareTripleChecker+Valid, 6218 SdHoareTripleChecker+Invalid, 6129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2141 IncrementalHoareTripleChecker+Valid, 3987 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:15,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5329 Valid, 6218 Invalid, 6129 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2141 Valid, 3987 Invalid, 1 Unknown, 0 Unchecked, 14.6s Time] [2022-11-21 09:10:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2022-11-21 09:10:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5047. [2022-11-21 09:10:15,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5047 states, 3401 states have (on average 1.259923551896501) internal successors, (4285), 3493 states have internal predecessors, (4285), 1349 states have call successors, (1349), 296 states have call predecessors, (1349), 295 states have return successors, (1350), 1313 states have call predecessors, (1350), 1346 states have call successors, (1350) [2022-11-21 09:10:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5047 states to 5047 states and 6984 transitions. [2022-11-21 09:10:16,037 INFO L78 Accepts]: Start accepts. Automaton has 5047 states and 6984 transitions. Word has length 225 [2022-11-21 09:10:16,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:16,042 INFO L495 AbstractCegarLoop]: Abstraction has 5047 states and 6984 transitions. [2022-11-21 09:10:16,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-21 09:10:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5047 states and 6984 transitions. [2022-11-21 09:10:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-21 09:10:16,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:16,073 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:16,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:10:16,074 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:16,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:16,075 INFO L85 PathProgramCache]: Analyzing trace with hash -446097619, now seen corresponding path program 1 times [2022-11-21 09:10:16,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:16,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733878241] [2022-11-21 09:10:16,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:16,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:10:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:10:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:10:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:10:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:10:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:10:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:10:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:10:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:10:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:10:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:16,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:10:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:10:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:10:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:10:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:10:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:10:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:10:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:10:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-21 09:10:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-21 09:10:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2022-11-21 09:10:17,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:17,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733878241] [2022-11-21 09:10:17,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733878241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:17,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:17,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:10:17,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159876750] [2022-11-21 09:10:17,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:17,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:10:17,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:17,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:10:17,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:10:17,274 INFO L87 Difference]: Start difference. First operand 5047 states and 6984 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-21 09:10:24,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:10:30,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:30,894 INFO L93 Difference]: Finished difference Result 12258 states and 17070 transitions. [2022-11-21 09:10:30,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:10:30,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 247 [2022-11-21 09:10:30,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:30,956 INFO L225 Difference]: With dead ends: 12258 [2022-11-21 09:10:30,956 INFO L226 Difference]: Without dead ends: 7252 [2022-11-21 09:10:30,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:10:30,985 INFO L413 NwaCegarLoop]: 2733 mSDtfsCounter, 4235 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 3941 mSolverCounterSat, 2045 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4807 SdHoareTripleChecker+Valid, 6061 SdHoareTripleChecker+Invalid, 5986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2045 IncrementalHoareTripleChecker+Valid, 3941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:30,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4807 Valid, 6061 Invalid, 5986 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2045 Valid, 3941 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-11-21 09:10:30,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7252 states. [2022-11-21 09:10:31,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7252 to 6914. [2022-11-21 09:10:31,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6914 states, 4670 states have (on average 1.255460385438972) internal successors, (5863), 4797 states have internal predecessors, (5863), 1819 states have call successors, (1819), 425 states have call predecessors, (1819), 423 states have return successors, (1820), 1766 states have call predecessors, (1820), 1816 states have call successors, (1820) [2022-11-21 09:10:31,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6914 states to 6914 states and 9502 transitions. [2022-11-21 09:10:31,522 INFO L78 Accepts]: Start accepts. Automaton has 6914 states and 9502 transitions. Word has length 247 [2022-11-21 09:10:31,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:31,525 INFO L495 AbstractCegarLoop]: Abstraction has 6914 states and 9502 transitions. [2022-11-21 09:10:31,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-21 09:10:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand 6914 states and 9502 transitions. [2022-11-21 09:10:31,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-21 09:10:31,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:31,535 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 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] [2022-11-21 09:10:31,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:10:31,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:31,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:31,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1119497302, now seen corresponding path program 1 times [2022-11-21 09:10:31,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:31,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197458186] [2022-11-21 09:10:31,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:31,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:10:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:10:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:10:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:10:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:10:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:10:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:10:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:10:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:10:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:10:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:10:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:10:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:10:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:10:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:10:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:10:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:10:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:10:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-21 09:10:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:10:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:10:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-21 09:10:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1435 trivial. 0 not checked. [2022-11-21 09:10:32,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:32,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197458186] [2022-11-21 09:10:32,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197458186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:32,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:32,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:10:32,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512144456] [2022-11-21 09:10:32,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:32,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:10:32,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:32,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:10:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:10:32,309 INFO L87 Difference]: Start difference. First operand 6914 states and 9502 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-21 09:10:40,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:10:43,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:10:47,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:47,387 INFO L93 Difference]: Finished difference Result 18852 states and 26143 transitions. [2022-11-21 09:10:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:10:47,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 259 [2022-11-21 09:10:47,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:47,484 INFO L225 Difference]: With dead ends: 18852 [2022-11-21 09:10:47,484 INFO L226 Difference]: Without dead ends: 11979 [2022-11-21 09:10:47,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:10:47,526 INFO L413 NwaCegarLoop]: 2803 mSDtfsCounter, 4601 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 3986 mSolverCounterSat, 2138 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5249 SdHoareTripleChecker+Valid, 6137 SdHoareTripleChecker+Invalid, 6125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2138 IncrementalHoareTripleChecker+Valid, 3986 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:47,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5249 Valid, 6137 Invalid, 6125 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2138 Valid, 3986 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-21 09:10:47,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11979 states. [2022-11-21 09:10:48,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11979 to 11417. [2022-11-21 09:10:48,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11417 states, 7710 states have (on average 1.2534370946822309) internal successors, (9664), 7931 states have internal predecessors, (9664), 3002 states have call successors, (3002), 706 states have call predecessors, (3002), 703 states have return successors, (3003), 2907 states have call predecessors, (3003), 2999 states have call successors, (3003) [2022-11-21 09:10:48,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11417 states to 11417 states and 15669 transitions. [2022-11-21 09:10:48,252 INFO L78 Accepts]: Start accepts. Automaton has 11417 states and 15669 transitions. Word has length 259 [2022-11-21 09:10:48,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:48,253 INFO L495 AbstractCegarLoop]: Abstraction has 11417 states and 15669 transitions. [2022-11-21 09:10:48,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-21 09:10:48,254 INFO L276 IsEmpty]: Start isEmpty. Operand 11417 states and 15669 transitions. [2022-11-21 09:10:48,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-11-21 09:10:48,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:48,267 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:48,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:10:48,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:48,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:48,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1002186950, now seen corresponding path program 1 times [2022-11-21 09:10:48,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:48,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502475879] [2022-11-21 09:10:48,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:48,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:10:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:10:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:10:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:10:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:10:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:10:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:10:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:10:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:10:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:10:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:10:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:10:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:10:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:10:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:10:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:10:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:10:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:10:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 09:10:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 09:10:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-21 09:10:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-21 09:10:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:48,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:49,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-21 09:10:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:49,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-21 09:10:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:49,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-11-21 09:10:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1635 trivial. 0 not checked. [2022-11-21 09:10:49,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:49,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502475879] [2022-11-21 09:10:49,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502475879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:49,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:49,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:10:49,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538609069] [2022-11-21 09:10:49,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:49,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:10:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:49,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:10:49,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:10:49,040 INFO L87 Difference]: Start difference. First operand 11417 states and 15669 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-21 09:10:56,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:04,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:04,148 INFO L93 Difference]: Finished difference Result 30815 states and 42735 transitions. [2022-11-21 09:11:04,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:11:04,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 281 [2022-11-21 09:11:04,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:04,282 INFO L225 Difference]: With dead ends: 30815 [2022-11-21 09:11:04,282 INFO L226 Difference]: Without dead ends: 21492 [2022-11-21 09:11:04,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:11:04,329 INFO L413 NwaCegarLoop]: 4520 mSDtfsCounter, 3742 mSDsluCounter, 4460 mSDsCounter, 0 mSdLazyCounter, 4851 mSolverCounterSat, 1492 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4391 SdHoareTripleChecker+Valid, 8980 SdHoareTripleChecker+Invalid, 6344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1492 IncrementalHoareTripleChecker+Valid, 4851 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:04,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4391 Valid, 8980 Invalid, 6344 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1492 Valid, 4851 Invalid, 1 Unknown, 0 Unchecked, 13.9s Time] [2022-11-21 09:11:04,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21492 states. [2022-11-21 09:11:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21492 to 20501. [2022-11-21 09:11:05,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20501 states, 13856 states have (on average 1.2541859122401848) internal successors, (17378), 14243 states have internal predecessors, (17378), 5380 states have call successors, (5380), 1266 states have call predecessors, (5380), 1263 states have return successors, (5381), 5225 states have call predecessors, (5381), 5377 states have call successors, (5381) [2022-11-21 09:11:05,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20501 states to 20501 states and 28139 transitions. [2022-11-21 09:11:05,948 INFO L78 Accepts]: Start accepts. Automaton has 20501 states and 28139 transitions. Word has length 281 [2022-11-21 09:11:05,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:05,953 INFO L495 AbstractCegarLoop]: Abstraction has 20501 states and 28139 transitions. [2022-11-21 09:11:05,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-21 09:11:05,954 INFO L276 IsEmpty]: Start isEmpty. Operand 20501 states and 28139 transitions. [2022-11-21 09:11:05,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-11-21 09:11:05,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:05,971 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:05,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:11:05,972 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:05,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:05,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1136200456, now seen corresponding path program 1 times [2022-11-21 09:11:05,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:05,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537476147] [2022-11-21 09:11:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:05,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:11:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:11:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:11:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:11:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:11:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:11:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:11:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:11:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:11:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:11:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:11:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:11:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:11:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:11:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:11:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:11:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:11:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:11:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 09:11:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 09:11:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-21 09:11:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-21 09:11:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-21 09:11:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-21 09:11:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-11-21 09:11:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1645 trivial. 0 not checked. [2022-11-21 09:11:07,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:07,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537476147] [2022-11-21 09:11:07,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537476147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:07,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:11:07,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:11:07,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153211006] [2022-11-21 09:11:07,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:07,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:11:07,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:07,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:11:07,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:11:07,305 INFO L87 Difference]: Start difference. First operand 20501 states and 28139 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-21 09:11:11,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:16,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:16,978 INFO L93 Difference]: Finished difference Result 21538 states and 29989 transitions. [2022-11-21 09:11:16,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:11:16,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 281 [2022-11-21 09:11:16,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:17,110 INFO L225 Difference]: With dead ends: 21538 [2022-11-21 09:11:17,111 INFO L226 Difference]: Without dead ends: 21483 [2022-11-21 09:11:17,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:11:17,130 INFO L413 NwaCegarLoop]: 2429 mSDtfsCounter, 3615 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 3238 mSolverCounterSat, 1587 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3996 SdHoareTripleChecker+Valid, 5812 SdHoareTripleChecker+Invalid, 4826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1587 IncrementalHoareTripleChecker+Valid, 3238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:17,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3996 Valid, 5812 Invalid, 4826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1587 Valid, 3238 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-21 09:11:17,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21483 states. [2022-11-21 09:11:18,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21483 to 20473. [2022-11-21 09:11:18,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20473 states, 13849 states have (on average 1.2534479023756229) internal successors, (17359), 14224 states have internal predecessors, (17359), 5353 states have call successors, (5353), 1269 states have call predecessors, (5353), 1270 states have return successors, (5361), 5212 states have call predecessors, (5361), 5353 states have call successors, (5361) [2022-11-21 09:11:18,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20473 states to 20473 states and 28073 transitions. [2022-11-21 09:11:18,714 INFO L78 Accepts]: Start accepts. Automaton has 20473 states and 28073 transitions. Word has length 281 [2022-11-21 09:11:18,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:18,715 INFO L495 AbstractCegarLoop]: Abstraction has 20473 states and 28073 transitions. [2022-11-21 09:11:18,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-21 09:11:18,716 INFO L276 IsEmpty]: Start isEmpty. Operand 20473 states and 28073 transitions. [2022-11-21 09:11:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-11-21 09:11:18,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:18,758 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 18, 18, 18, 5, 5, 5, 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, 1, 1, 1] [2022-11-21 09:11:18,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:11:18,759 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:18,760 INFO L85 PathProgramCache]: Analyzing trace with hash 469372968, now seen corresponding path program 1 times [2022-11-21 09:11:18,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:18,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985382619] [2022-11-21 09:11:18,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:18,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:11:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:11:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:11:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:11:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:11:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:11:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:11:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:11:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:11:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:11:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:11:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:11:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:11:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:11:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:11:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:11:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:11:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:11:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 09:11:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 09:11:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-21 09:11:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-21 09:11:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-21 09:11:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-21 09:11:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-21 09:11:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-11-21 09:11:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-11-21 09:11:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-11-21 09:11:19,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:19,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985382619] [2022-11-21 09:11:19,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985382619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:19,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:11:19,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:11:19,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990515930] [2022-11-21 09:11:19,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:19,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:11:19,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:19,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:11:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:11:19,695 INFO L87 Difference]: Start difference. First operand 20473 states and 28073 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-21 09:11:24,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:28,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:36,172 INFO L93 Difference]: Finished difference Result 48779 states and 67473 transitions. [2022-11-21 09:11:36,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:11:36,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 311 [2022-11-21 09:11:36,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:36,360 INFO L225 Difference]: With dead ends: 48779 [2022-11-21 09:11:36,361 INFO L226 Difference]: Without dead ends: 30400 [2022-11-21 09:11:36,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:11:36,444 INFO L413 NwaCegarLoop]: 4189 mSDtfsCounter, 3365 mSDsluCounter, 4246 mSDsCounter, 0 mSdLazyCounter, 4739 mSolverCounterSat, 1452 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 8435 SdHoareTripleChecker+Invalid, 6192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1452 IncrementalHoareTripleChecker+Valid, 4739 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:36,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3932 Valid, 8435 Invalid, 6192 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1452 Valid, 4739 Invalid, 1 Unknown, 0 Unchecked, 14.5s Time] [2022-11-21 09:11:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30400 states. [2022-11-21 09:11:38,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30400 to 28971. [2022-11-21 09:11:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28971 states, 19607 states have (on average 1.2525628602029888) internal successors, (24559), 20138 states have internal predecessors, (24559), 7549 states have call successors, (7549), 1813 states have call predecessors, (7549), 1814 states have return successors, (7557), 7348 states have call predecessors, (7557), 7549 states have call successors, (7557) [2022-11-21 09:11:38,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28971 states to 28971 states and 39665 transitions. [2022-11-21 09:11:38,290 INFO L78 Accepts]: Start accepts. Automaton has 28971 states and 39665 transitions. Word has length 311 [2022-11-21 09:11:38,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:38,291 INFO L495 AbstractCegarLoop]: Abstraction has 28971 states and 39665 transitions. [2022-11-21 09:11:38,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-21 09:11:38,291 INFO L276 IsEmpty]: Start isEmpty. Operand 28971 states and 39665 transitions. [2022-11-21 09:11:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-11-21 09:11:38,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:38,349 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 18, 18, 18, 18, 18, 18, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:38,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:11:38,350 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:38,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:38,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1327187176, now seen corresponding path program 1 times [2022-11-21 09:11:38,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:38,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828582448] [2022-11-21 09:11:38,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:38,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:11:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:11:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:11:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:11:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:11:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:11:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:11:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:11:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:11:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:11:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:11:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:11:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:11:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:11:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:11:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:11:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:11:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:11:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 09:11:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 09:11:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-21 09:11:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-21 09:11:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-21 09:11:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-21 09:11:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-11-21 09:11:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-11-21 09:11:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-11-21 09:11:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:11:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-11-21 09:11:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2022-11-21 09:11:39,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:39,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828582448] [2022-11-21 09:11:39,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828582448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:39,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:11:39,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:11:39,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513979039] [2022-11-21 09:11:39,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:39,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:11:39,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:11:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:11:39,865 INFO L87 Difference]: Start difference. First operand 28971 states and 39665 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-21 09:11:44,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:47,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:56,430 INFO L93 Difference]: Finished difference Result 71243 states and 98411 transitions. [2022-11-21 09:11:56,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:11:56,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 335 [2022-11-21 09:11:56,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:56,715 INFO L225 Difference]: With dead ends: 71243 [2022-11-21 09:11:56,716 INFO L226 Difference]: Without dead ends: 42150 [2022-11-21 09:11:56,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:11:56,863 INFO L413 NwaCegarLoop]: 4691 mSDtfsCounter, 3703 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 4844 mSolverCounterSat, 1428 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4347 SdHoareTripleChecker+Valid, 9267 SdHoareTripleChecker+Invalid, 6273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1428 IncrementalHoareTripleChecker+Valid, 4844 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:56,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4347 Valid, 9267 Invalid, 6273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1428 Valid, 4844 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-11-21 09:11:56,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42150 states. [2022-11-21 09:11:59,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42150 to 40174. [2022-11-21 09:11:59,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40174 states, 27179 states have (on average 1.2530630266014202) internal successors, (34057), 27914 states have internal predecessors, (34057), 10479 states have call successors, (10479), 2514 states have call predecessors, (10479), 2515 states have return successors, (10487), 10204 states have call predecessors, (10487), 10479 states have call successors, (10487) [2022-11-21 09:12:00,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40174 states to 40174 states and 55023 transitions. [2022-11-21 09:12:00,148 INFO L78 Accepts]: Start accepts. Automaton has 40174 states and 55023 transitions. Word has length 335 [2022-11-21 09:12:00,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:00,150 INFO L495 AbstractCegarLoop]: Abstraction has 40174 states and 55023 transitions. [2022-11-21 09:12:00,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-21 09:12:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 40174 states and 55023 transitions. [2022-11-21 09:12:00,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-11-21 09:12:00,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:00,222 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 18, 18, 18, 18, 18, 18, 7, 7, 7, 4, 4, 4, 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, 1] [2022-11-21 09:12:00,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:12:00,223 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:00,223 INFO L85 PathProgramCache]: Analyzing trace with hash -632061657, now seen corresponding path program 1 times [2022-11-21 09:12:00,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:00,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937951103] [2022-11-21 09:12:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:00,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:12:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:12:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:12:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:12:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:12:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:12:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:12:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:12:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:12:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:12:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:12:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:12:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:12:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:12:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:12:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:00,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:12:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:12:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:12:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 09:12:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 09:12:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-21 09:12:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-21 09:12:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-21 09:12:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-21 09:12:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-11-21 09:12:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-11-21 09:12:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-11-21 09:12:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-21 09:12:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-11-21 09:12:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-11-21 09:12:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:12:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-11-21 09:12:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1939 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1911 trivial. 0 not checked. [2022-11-21 09:12:01,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:01,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937951103] [2022-11-21 09:12:01,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937951103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:01,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:01,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:12:01,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741286748] [2022-11-21 09:12:01,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:01,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:12:01,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:01,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:12:01,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:12:01,226 INFO L87 Difference]: Start difference. First operand 40174 states and 55023 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-21 09:12:05,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:16,893 INFO L93 Difference]: Finished difference Result 94147 states and 130061 transitions. [2022-11-21 09:12:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:12:16,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 359 [2022-11-21 09:12:16,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:17,229 INFO L225 Difference]: With dead ends: 94147 [2022-11-21 09:12:17,229 INFO L226 Difference]: Without dead ends: 53882 [2022-11-21 09:12:17,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:12:17,390 INFO L413 NwaCegarLoop]: 4695 mSDtfsCounter, 3701 mSDsluCounter, 4582 mSDsCounter, 0 mSdLazyCounter, 4829 mSolverCounterSat, 1428 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4346 SdHoareTripleChecker+Valid, 9277 SdHoareTripleChecker+Invalid, 6258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1428 IncrementalHoareTripleChecker+Valid, 4829 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:17,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4346 Valid, 9277 Invalid, 6258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1428 Valid, 4829 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2022-11-21 09:12:17,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53882 states. [2022-11-21 09:12:20,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53882 to 51352. [2022-11-21 09:12:20,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51352 states, 34736 states have (on average 1.253454629203132) internal successors, (43540), 35670 states have internal predecessors, (43540), 13404 states have call successors, (13404), 3210 states have call predecessors, (13404), 3211 states have return successors, (13432), 13050 states have call predecessors, (13432), 13404 states have call successors, (13432) [2022-11-21 09:12:21,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51352 states to 51352 states and 70376 transitions. [2022-11-21 09:12:21,168 INFO L78 Accepts]: Start accepts. Automaton has 51352 states and 70376 transitions. Word has length 359 [2022-11-21 09:12:21,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:21,169 INFO L495 AbstractCegarLoop]: Abstraction has 51352 states and 70376 transitions. [2022-11-21 09:12:21,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-21 09:12:21,170 INFO L276 IsEmpty]: Start isEmpty. Operand 51352 states and 70376 transitions. [2022-11-21 09:12:21,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-11-21 09:12:21,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:21,227 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 18, 18, 18, 18, 18, 18, 7, 7, 7, 4, 4, 4, 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, 1] [2022-11-21 09:12:21,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:12:21,228 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:21,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:21,229 INFO L85 PathProgramCache]: Analyzing trace with hash 206972005, now seen corresponding path program 1 times [2022-11-21 09:12:21,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:21,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729134902] [2022-11-21 09:12:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:21,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:12:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:12:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:12:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:12:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:12:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:12:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:12:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:12:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:12:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:12:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:12:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:12:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:12:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:12:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:21,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:12:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:12:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:12:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:12:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 09:12:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 09:12:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-21 09:12:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-21 09:12:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-11-21 09:12:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-11-21 09:12:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-11-21 09:12:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-11-21 09:12:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-11-21 09:12:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-21 09:12:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-11-21 09:12:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-11-21 09:12:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:12:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-11-21 09:12:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1939 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1928 trivial. 0 not checked. [2022-11-21 09:12:22,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:22,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729134902] [2022-11-21 09:12:22,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729134902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:22,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:22,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:12:22,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870954573] [2022-11-21 09:12:22,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:22,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:12:22,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:22,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:12:22,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:12:22,309 INFO L87 Difference]: Start difference. First operand 51352 states and 70376 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-21 09:12:25,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:27,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:38,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:38,948 INFO L93 Difference]: Finished difference Result 130660 states and 180658 transitions. [2022-11-21 09:12:38,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:12:38,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 359 [2022-11-21 09:12:38,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:39,312 INFO L225 Difference]: With dead ends: 130660 [2022-11-21 09:12:39,312 INFO L226 Difference]: Without dead ends: 81402 [2022-11-21 09:12:39,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:12:39,653 INFO L413 NwaCegarLoop]: 4641 mSDtfsCounter, 3657 mSDsluCounter, 4522 mSDsCounter, 0 mSdLazyCounter, 4859 mSolverCounterSat, 1428 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 9163 SdHoareTripleChecker+Invalid, 6288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1428 IncrementalHoareTripleChecker+Valid, 4859 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:39,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4297 Valid, 9163 Invalid, 6288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1428 Valid, 4859 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time] [2022-11-21 09:12:39,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81402 states. [2022-11-21 09:12:42,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81402 to 77555. [2022-11-21 09:12:42,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77555 states, 52456 states have (on average 1.252687967058106) internal successors, (65711), 53879 states have internal predecessors, (65711), 20237 states have call successors, (20237), 4860 states have call predecessors, (20237), 4861 states have return successors, (20277), 19696 states have call predecessors, (20277), 20237 states have call successors, (20277) [2022-11-21 09:12:43,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77555 states to 77555 states and 106225 transitions. [2022-11-21 09:12:43,751 INFO L78 Accepts]: Start accepts. Automaton has 77555 states and 106225 transitions. Word has length 359 [2022-11-21 09:12:43,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:43,752 INFO L495 AbstractCegarLoop]: Abstraction has 77555 states and 106225 transitions. [2022-11-21 09:12:43,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-21 09:12:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 77555 states and 106225 transitions. [2022-11-21 09:12:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-21 09:12:43,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:43,850 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 18, 18, 18, 18, 18, 18, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:43,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:12:43,851 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:43,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:43,851 INFO L85 PathProgramCache]: Analyzing trace with hash 486203672, now seen corresponding path program 1 times [2022-11-21 09:12:43,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:43,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769206989] [2022-11-21 09:12:43,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:43,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:12:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:12:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:12:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:12:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:12:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:12:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:12:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:12:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:12:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:12:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:12:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:12:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:12:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:12:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:12:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:12:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:12:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:12:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 09:12:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 09:12:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-21 09:12:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-21 09:12:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-21 09:12:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-21 09:12:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-21 09:12:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-11-21 09:12:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:12:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-21 09:12:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:12:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-11-21 09:12:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-11-21 09:12:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-11-21 09:12:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:44,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-11-21 09:12:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:45,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1904 trivial. 0 not checked. [2022-11-21 09:12:45,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:45,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769206989] [2022-11-21 09:12:45,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769206989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:45,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:45,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:12:45,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464135337] [2022-11-21 09:12:45,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:45,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:12:45,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:45,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:12:45,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:12:45,096 INFO L87 Difference]: Start difference. First operand 77555 states and 106225 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-21 09:12:48,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:13:00,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:13:00,582 INFO L93 Difference]: Finished difference Result 183234 states and 253104 transitions. [2022-11-21 09:13:00,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:13:00,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 385 [2022-11-21 09:13:00,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:13:01,126 INFO L225 Difference]: With dead ends: 183234 [2022-11-21 09:13:01,126 INFO L226 Difference]: Without dead ends: 103456 [2022-11-21 09:13:01,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:13:01,359 INFO L413 NwaCegarLoop]: 4293 mSDtfsCounter, 3329 mSDsluCounter, 4312 mSDsCounter, 0 mSdLazyCounter, 4751 mSolverCounterSat, 1425 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3896 SdHoareTripleChecker+Valid, 8605 SdHoareTripleChecker+Invalid, 6177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1425 IncrementalHoareTripleChecker+Valid, 4751 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:13:01,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3896 Valid, 8605 Invalid, 6177 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1425 Valid, 4751 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2022-11-21 09:13:01,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103456 states. [2022-11-21 09:13:06,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103456 to 98514. [2022-11-21 09:13:06,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98514 states, 66642 states have (on average 1.2522133189280034) internal successors, (83450), 68442 states have internal predecessors, (83450), 25671 states have call successors, (25671), 6199 states have call predecessors, (25671), 6200 states have return successors, (25751), 24973 states have call predecessors, (25751), 25671 states have call successors, (25751) [2022-11-21 09:13:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98514 states to 98514 states and 134872 transitions. [2022-11-21 09:13:06,679 INFO L78 Accepts]: Start accepts. Automaton has 98514 states and 134872 transitions. Word has length 385 [2022-11-21 09:13:06,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:13:06,680 INFO L495 AbstractCegarLoop]: Abstraction has 98514 states and 134872 transitions. [2022-11-21 09:13:06,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-21 09:13:06,681 INFO L276 IsEmpty]: Start isEmpty. Operand 98514 states and 134872 transitions. [2022-11-21 09:13:06,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-21 09:13:06,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:13:06,757 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 18, 18, 18, 18, 18, 18, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:06,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 09:13:06,757 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:13:06,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:06,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1880490922, now seen corresponding path program 1 times [2022-11-21 09:13:06,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:13:06,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272912539] [2022-11-21 09:13:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:06,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:13:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:13:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 09:13:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:13:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:13:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:13:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:13:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:13:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:13:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:07,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:13:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:13:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:13:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:13:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:13:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:13:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:13:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 09:13:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-21 09:13:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 09:13:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-21 09:13:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-11-21 09:13:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-21 09:13:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-21 09:13:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-21 09:13:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-21 09:13:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-21 09:13:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-21 09:13:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-11-21 09:13:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:13:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:13:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-21 09:13:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:13:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:13:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:13:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-11-21 09:13:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-11-21 09:13:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-11-21 09:13:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-11-21 09:13:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1928 trivial. 0 not checked. [2022-11-21 09:13:08,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:13:08,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272912539] [2022-11-21 09:13:08,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272912539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:13:08,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:13:08,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:13:08,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211760368] [2022-11-21 09:13:08,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:13:08,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:13:08,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:13:08,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:13:08,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:13:08,565 INFO L87 Difference]: Start difference. First operand 98514 states and 134872 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-21 09:13:12,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []