./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R --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 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 --- 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-38b53e6 [2022-11-25 18:35:01,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:35:01,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:35:01,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:35:01,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:35:01,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:35:01,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:35:01,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:35:01,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:35:01,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:35:01,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:35:01,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:35:01,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:35:01,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:35:01,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:35:01,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:35:01,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:35:01,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:35:01,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:35:01,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:35:01,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:35:01,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:35:01,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:35:01,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:35:01,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:35:01,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:35:01,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:35:01,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:35:01,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:35:01,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:35:01,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:35:01,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:35:01,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:35:01,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:35:01,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:35:01,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:35:01,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:35:01,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:35:01,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:35:01,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:35:01,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:35:01,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 18:35:01,841 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:35:01,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:35:01,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:35:01,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:35:01,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:35:01,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:35:01,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:35:01,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:35:01,846 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:35:01,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:35:01,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:35:01,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:35:01,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:35:01,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:35:01,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:35:01,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:35:01,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:35:01,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:35:01,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:35:01,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:35:01,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:35:01,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:35:01,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:35:01,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:35:01,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:35:01,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:35:01,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:35:01,853 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:35:01,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:35:01,854 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:35:01,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:35:01,854 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 [2022-11-25 18:35:02,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:35:02,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:35:02,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:35:02,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:35:02,241 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:35:02,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2022-11-25 18:35:05,567 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:35:06,017 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:35:06,018 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2022-11-25 18:35:06,046 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/data/370d9580b/45aa6c363d8848f3ac891a701028167a/FLAG56b4d1c33 [2022-11-25 18:35:06,063 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/data/370d9580b/45aa6c363d8848f3ac891a701028167a [2022-11-25 18:35:06,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:35:06,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:35:06,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:35:06,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:35:06,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:35:06,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:35:06" (1/1) ... [2022-11-25 18:35:06,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d5c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:06, skipping insertion in model container [2022-11-25 18:35:06,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:35:06" (1/1) ... [2022-11-25 18:35:06,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:35:06,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:35:06,657 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:06,664 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 18:35:06,900 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 18:35:06,906 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 18:35:06,909 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,917 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,919 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,920 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,924 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 18:35:06,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,937 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,938 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,944 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:06,967 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:06,977 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:06,978 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:06,986 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:06,988 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:06,989 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:06,991 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:06,992 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:06,995 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:07,018 WARN L623 FunctionHandler]: Unknown extern function devm_kzalloc [2022-11-25 18:35:07,019 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 18:35:07,020 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 18:35:07,024 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,025 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,027 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,040 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,043 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 18:35:07,044 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 18:35:07,046 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_register [2022-11-25 18:35:07,047 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 18:35:07,048 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 18:35:07,051 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_unregister [2022-11-25 18:35:07,052 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 18:35:07,053 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 18:35:07,055 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:07,063 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:07,065 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:07,069 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-11-25 18:35:07,070 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-11-25 18:35:07,071 WARN L623 FunctionHandler]: Unknown extern function strcspn [2022-11-25 18:35:07,073 WARN L623 FunctionHandler]: Unknown extern function strncasecmp [2022-11-25 18:35:07,077 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,077 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,080 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,083 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-11-25 18:35:07,084 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,085 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_resources [2022-11-25 18:35:07,085 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,086 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-11-25 18:35:07,086 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,087 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-11-25 18:35:07,090 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-11-25 18:35:07,133 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_suspend_late_2 [2022-11-25 18:35:07,134 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_restore_early_2 [2022-11-25 18:35:07,139 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_resume_early_2 [2022-11-25 18:35:07,140 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_thaw_early_2 [2022-11-25 18:35:07,141 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_resume_noirq_2 [2022-11-25 18:35:07,142 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_freeze_noirq_2 [2022-11-25 18:35:07,142 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_prepare_2 [2022-11-25 18:35:07,143 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_freeze_late_2 [2022-11-25 18:35:07,143 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_thaw_noirq_2 [2022-11-25 18:35:07,144 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_poweroff_noirq_2 [2022-11-25 18:35:07,144 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_poweroff_late_2 [2022-11-25 18:35:07,145 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_restore_noirq_2 [2022-11-25 18:35:07,146 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_suspend_noirq_2 [2022-11-25 18:35:07,147 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_complete_2 [2022-11-25 18:35:07,148 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 18:35:07,150 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 18:35:07,151 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 18:35:07,151 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 18:35:07,152 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 18:35:07,153 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 18:35:07,154 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 18:35:07,154 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 18:35:07,154 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 18:35:07,155 WARN L623 FunctionHandler]: Unknown extern function platform_driver_register [2022-11-25 18:35:07,155 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 18:35:07,156 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 18:35:07,157 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_feb7c878-70bd-485a-a372-9e6aac486209/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2022-11-25 18:35:07,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:35:07,367 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:35:07,452 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:07,452 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 18:35:07,515 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 18:35:07,516 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 18:35:07,518 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,519 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,522 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,524 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,525 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,526 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,526 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 18:35:07,530 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,531 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,544 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:07,546 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:07,546 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:07,547 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:07,549 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:07,549 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:07,556 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:07,557 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:07,558 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 18:35:07,573 WARN L623 FunctionHandler]: Unknown extern function devm_kzalloc [2022-11-25 18:35:07,574 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 18:35:07,574 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 18:35:07,576 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,577 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,582 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,583 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 18:35:07,583 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 18:35:07,585 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_register [2022-11-25 18:35:07,595 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 18:35:07,597 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 18:35:07,599 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_unregister [2022-11-25 18:35:07,599 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 18:35:07,600 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 18:35:07,602 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:07,607 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:07,607 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 18:35:07,609 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-11-25 18:35:07,610 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-11-25 18:35:07,610 WARN L623 FunctionHandler]: Unknown extern function strcspn [2022-11-25 18:35:07,612 WARN L623 FunctionHandler]: Unknown extern function strncasecmp [2022-11-25 18:35:07,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,624 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,624 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-11-25 18:35:07,625 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,625 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_resources [2022-11-25 18:35:07,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,626 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-11-25 18:35:07,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 18:35:07,627 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-11-25 18:35:07,627 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-11-25 18:35:07,635 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_suspend_late_2 [2022-11-25 18:35:07,635 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_restore_early_2 [2022-11-25 18:35:07,638 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_resume_early_2 [2022-11-25 18:35:07,638 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_thaw_early_2 [2022-11-25 18:35:07,639 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_resume_noirq_2 [2022-11-25 18:35:07,639 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_freeze_noirq_2 [2022-11-25 18:35:07,640 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_prepare_2 [2022-11-25 18:35:07,641 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_freeze_late_2 [2022-11-25 18:35:07,644 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_thaw_noirq_2 [2022-11-25 18:35:07,645 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_poweroff_noirq_2 [2022-11-25 18:35:07,646 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_poweroff_late_2 [2022-11-25 18:35:07,646 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_restore_noirq_2 [2022-11-25 18:35:07,647 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_suspend_noirq_2 [2022-11-25 18:35:07,648 WARN L623 FunctionHandler]: Unknown extern function ldv_abituguru3_pm_complete_2 [2022-11-25 18:35:07,649 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 18:35:07,651 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 18:35:07,651 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 18:35:07,651 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 18:35:07,652 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 18:35:07,652 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 18:35:07,653 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 18:35:07,653 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 18:35:07,653 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 18:35:07,654 WARN L623 FunctionHandler]: Unknown extern function platform_driver_register [2022-11-25 18:35:07,654 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 18:35:07,654 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 18:35:07,655 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_feb7c878-70bd-485a-a372-9e6aac486209/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2022-11-25 18:35:07,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:35:07,823 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:35:07,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07 WrapperNode [2022-11-25 18:35:07,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:35:07,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:35:07,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:35:07,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:35:07,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:07,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,326 INFO L138 Inliner]: procedures = 133, calls = 5552, calls flagged for inlining = 57, calls inlined = 51, statements flattened = 6634 [2022-11-25 18:35:08,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:35:08,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:35:08,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:35:08,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:35:08,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,680 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:35:08,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:35:08,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:35:08,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:35:08,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (1/1) ... [2022-11-25 18:35:08,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:35:08,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:35:08,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:35:08,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:35:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2022-11-25 18:35:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2022-11-25 18:35:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-25 18:35:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-25 18:35:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2022-11-25 18:35:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2022-11-25 18:35:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-25 18:35:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-25 18:35:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-25 18:35:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-25 18:35:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2022-11-25 18:35:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2022-11-25 18:35:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:35:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2022-11-25 18:35:08,854 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2022-11-25 18:35:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 18:35:08,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 18:35:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:35:08,854 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 18:35:08,854 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 18:35:08,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 18:35:08,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 18:35:08,855 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-25 18:35:08,857 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-25 18:35:08,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2022-11-25 18:35:08,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2022-11-25 18:35:08,857 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2022-11-25 18:35:08,857 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2022-11-25 18:35:08,858 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2022-11-25 18:35:08,858 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2022-11-25 18:35:08,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:35:08,858 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-25 18:35:08,858 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-25 18:35:08,858 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-25 18:35:08,858 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-25 18:35:08,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:35:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 18:35:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:35:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2022-11-25 18:35:08,859 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2022-11-25 18:35:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 18:35:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:35:08,859 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-11-25 18:35:08,860 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-11-25 18:35:08,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 18:35:08,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2022-11-25 18:35:08,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2022-11-25 18:35:08,860 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2022-11-25 18:35:08,860 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-25 18:35:08,860 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-25 18:35:08,861 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-25 18:35:08,861 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-25 18:35:08,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:35:08,861 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-25 18:35:08,861 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-25 18:35:08,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:35:08,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:35:08,861 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2022-11-25 18:35:08,862 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2022-11-25 18:35:08,862 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 18:35:08,862 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 18:35:09,312 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:35:09,316 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:35:23,380 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:35:23,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:35:23,396 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:35:23,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:35:23 BoogieIcfgContainer [2022-11-25 18:35:23,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:35:23,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:35:23,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:35:23,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:35:23,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:35:06" (1/3) ... [2022-11-25 18:35:23,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1438abf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:35:23, skipping insertion in model container [2022-11-25 18:35:23,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:35:07" (2/3) ... [2022-11-25 18:35:23,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1438abf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:35:23, skipping insertion in model container [2022-11-25 18:35:23,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:35:23" (3/3) ... [2022-11-25 18:35:23,429 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2022-11-25 18:35:23,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:35:23,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:35:23,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:35:23,594 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;@4a79f057, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:35:23,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:35:23,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 500 states, 396 states have (on average 1.4343434343434343) internal successors, (568), 405 states have internal predecessors, (568), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-25 18:35:23,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 18:35:23,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:23,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:35:23,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:23,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:23,628 INFO L85 PathProgramCache]: Analyzing trace with hash 515324901, now seen corresponding path program 1 times [2022-11-25 18:35:23,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:23,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621707631] [2022-11-25 18:35:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:23,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:25,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 18:35:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:25,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:35:25,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:25,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621707631] [2022-11-25 18:35:25,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621707631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:25,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:25,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:35:25,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669707512] [2022-11-25 18:35:25,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:25,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:35:25,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:25,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:35:25,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:35:25,989 INFO L87 Difference]: Start difference. First operand has 500 states, 396 states have (on average 1.4343434343434343) internal successors, (568), 405 states have internal predecessors, (568), 78 states have call successors, (78), 24 states have call predecessors, (78), 24 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:35:26,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:35:26,678 INFO L93 Difference]: Finished difference Result 1410 states and 2093 transitions. [2022-11-25 18:35:26,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:35:26,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-25 18:35:26,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:35:26,708 INFO L225 Difference]: With dead ends: 1410 [2022-11-25 18:35:26,711 INFO L226 Difference]: Without dead ends: 909 [2022-11-25 18:35:26,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:35:26,732 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 684 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:35:26,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1650 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:35:26,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-11-25 18:35:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 905. [2022-11-25 18:35:26,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 716 states have (on average 1.4357541899441342) internal successors, (1028), 726 states have internal predecessors, (1028), 143 states have call successors, (143), 46 states have call predecessors, (143), 45 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2022-11-25 18:35:26,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1309 transitions. [2022-11-25 18:35:26,917 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1309 transitions. Word has length 21 [2022-11-25 18:35:26,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:26,919 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1309 transitions. [2022-11-25 18:35:26,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:35:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1309 transitions. [2022-11-25 18:35:26,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 18:35:26,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:26,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:35:26,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:35:26,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:26,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash 494311769, now seen corresponding path program 1 times [2022-11-25 18:35:26,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:26,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556808288] [2022-11-25 18:35:26,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:26,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:28,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:35:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:28,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:35:28,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:28,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556808288] [2022-11-25 18:35:28,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556808288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:28,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:28,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:35:28,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240380961] [2022-11-25 18:35:28,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:28,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:35:28,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:35:28,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:35:28,197 INFO L87 Difference]: Start difference. First operand 905 states and 1309 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:35:30,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:35:30,853 INFO L93 Difference]: Finished difference Result 2680 states and 3869 transitions. [2022-11-25 18:35:30,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:35:30,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-11-25 18:35:30,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:35:30,875 INFO L225 Difference]: With dead ends: 2680 [2022-11-25 18:35:30,875 INFO L226 Difference]: Without dead ends: 1778 [2022-11-25 18:35:30,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:35:30,890 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 730 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:35:30,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 1496 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 18:35:30,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2022-11-25 18:35:31,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1581. [2022-11-25 18:35:31,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1239 states have (on average 1.4027441485068604) internal successors, (1738), 1255 states have internal predecessors, (1738), 256 states have call successors, (256), 86 states have call predecessors, (256), 85 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2022-11-25 18:35:31,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2245 transitions. [2022-11-25 18:35:31,107 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2245 transitions. Word has length 28 [2022-11-25 18:35:31,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:31,107 INFO L495 AbstractCegarLoop]: Abstraction has 1581 states and 2245 transitions. [2022-11-25 18:35:31,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:35:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2245 transitions. [2022-11-25 18:35:31,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 18:35:31,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:31,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:35:31,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:35:31,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:31,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:31,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1905538277, now seen corresponding path program 1 times [2022-11-25 18:35:31,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:31,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21996178] [2022-11-25 18:35:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:31,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:32,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:35:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:32,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:35:32,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:32,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21996178] [2022-11-25 18:35:32,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21996178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:32,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:32,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:35:32,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004092794] [2022-11-25 18:35:32,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:32,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:35:32,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:32,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:35:32,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:35:32,533 INFO L87 Difference]: Start difference. First operand 1581 states and 2245 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:35:33,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:35:33,975 INFO L93 Difference]: Finished difference Result 1777 states and 2561 transitions. [2022-11-25 18:35:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:35:33,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-11-25 18:35:33,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:35:33,988 INFO L225 Difference]: With dead ends: 1777 [2022-11-25 18:35:33,988 INFO L226 Difference]: Without dead ends: 1768 [2022-11-25 18:35:33,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:35:33,991 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 839 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:35:33,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 946 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 18:35:33,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-11-25 18:35:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1581. [2022-11-25 18:35:34,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1239 states have (on average 1.4019370460048426) internal successors, (1737), 1255 states have internal predecessors, (1737), 256 states have call successors, (256), 86 states have call predecessors, (256), 85 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2022-11-25 18:35:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2244 transitions. [2022-11-25 18:35:34,123 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2244 transitions. Word has length 33 [2022-11-25 18:35:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:34,124 INFO L495 AbstractCegarLoop]: Abstraction has 1581 states and 2244 transitions. [2022-11-25 18:35:34,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:35:34,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2244 transitions. [2022-11-25 18:35:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 18:35:34,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:34,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:35:34,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:35:34,127 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:34,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:34,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1848279975, now seen corresponding path program 1 times [2022-11-25 18:35:34,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:34,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500895582] [2022-11-25 18:35:34,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:34,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:35,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:35:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:35,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:35:35,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:35,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500895582] [2022-11-25 18:35:35,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500895582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:35,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:35,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:35:35,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371279507] [2022-11-25 18:35:35,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:35,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:35:35,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:35:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:35:35,215 INFO L87 Difference]: Start difference. First operand 1581 states and 2244 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:35:36,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:35:36,598 INFO L93 Difference]: Finished difference Result 1761 states and 2541 transitions. [2022-11-25 18:35:36,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:35:36,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2022-11-25 18:35:36,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:35:36,610 INFO L225 Difference]: With dead ends: 1761 [2022-11-25 18:35:36,611 INFO L226 Difference]: Without dead ends: 1758 [2022-11-25 18:35:36,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:35:36,614 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 821 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:35:36,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 919 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 18:35:36,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2022-11-25 18:35:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1580. [2022-11-25 18:35:36,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1239 states have (on average 1.4011299435028248) internal successors, (1736), 1254 states have internal predecessors, (1736), 255 states have call successors, (255), 86 states have call predecessors, (255), 85 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2022-11-25 18:35:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2242 transitions. [2022-11-25 18:35:36,732 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2242 transitions. Word has length 33 [2022-11-25 18:35:36,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:36,733 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 2242 transitions. [2022-11-25 18:35:36,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:35:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2242 transitions. [2022-11-25 18:35:36,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 18:35:36,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:36,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:35:36,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:35:36,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:36,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:36,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1462288257, now seen corresponding path program 1 times [2022-11-25 18:35:36,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:36,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850304269] [2022-11-25 18:35:36,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:36,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:35:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:35:37,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:37,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850304269] [2022-11-25 18:35:37,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850304269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:37,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:37,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:35:37,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863950489] [2022-11-25 18:35:37,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:37,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:35:37,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:35:37,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:35:37,768 INFO L87 Difference]: Start difference. First operand 1580 states and 2242 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:35:39,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:35:39,269 INFO L93 Difference]: Finished difference Result 1760 states and 2539 transitions. [2022-11-25 18:35:39,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:35:39,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-11-25 18:35:39,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:35:39,285 INFO L225 Difference]: With dead ends: 1760 [2022-11-25 18:35:39,286 INFO L226 Difference]: Without dead ends: 1757 [2022-11-25 18:35:39,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:35:39,288 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 818 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:35:39,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 916 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 18:35:39,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-11-25 18:35:39,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1579. [2022-11-25 18:35:39,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1239 states have (on average 1.400322841000807) internal successors, (1735), 1253 states have internal predecessors, (1735), 254 states have call successors, (254), 86 states have call predecessors, (254), 85 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2022-11-25 18:35:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2240 transitions. [2022-11-25 18:35:39,470 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2240 transitions. Word has length 34 [2022-11-25 18:35:39,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:39,472 INFO L495 AbstractCegarLoop]: Abstraction has 1579 states and 2240 transitions. [2022-11-25 18:35:39,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:35:39,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2240 transitions. [2022-11-25 18:35:39,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 18:35:39,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:39,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:35:39,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:35:39,475 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:39,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:39,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1913525276, now seen corresponding path program 1 times [2022-11-25 18:35:39,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:39,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886184097] [2022-11-25 18:35:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:39,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:40,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:35:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:40,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:40,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:35:40,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:40,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886184097] [2022-11-25 18:35:40,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886184097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:40,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:40,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:35:40,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410912086] [2022-11-25 18:35:40,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:40,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:35:40,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:40,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:35:40,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:35:40,564 INFO L87 Difference]: Start difference. First operand 1579 states and 2240 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:35:42,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:35:42,587 INFO L93 Difference]: Finished difference Result 4553 states and 6548 transitions. [2022-11-25 18:35:42,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:35:42,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2022-11-25 18:35:42,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:35:42,618 INFO L225 Difference]: With dead ends: 4553 [2022-11-25 18:35:42,618 INFO L226 Difference]: Without dead ends: 2965 [2022-11-25 18:35:42,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:35:42,630 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 927 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:35:42,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 1371 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 18:35:42,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2022-11-25 18:35:42,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2738. [2022-11-25 18:35:42,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2738 states, 2153 states have (on average 1.3994426381792848) internal successors, (3013), 2190 states have internal predecessors, (3013), 447 states have call successors, (447), 151 states have call predecessors, (447), 137 states have return successors, (437), 420 states have call predecessors, (437), 437 states have call successors, (437) [2022-11-25 18:35:42,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 3897 transitions. [2022-11-25 18:35:42,905 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 3897 transitions. Word has length 35 [2022-11-25 18:35:42,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:42,906 INFO L495 AbstractCegarLoop]: Abstraction has 2738 states and 3897 transitions. [2022-11-25 18:35:42,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:35:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 3897 transitions. [2022-11-25 18:35:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-25 18:35:42,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:42,909 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 18:35:42,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:35:42,910 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:42,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:42,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1178200792, now seen corresponding path program 1 times [2022-11-25 18:35:42,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:42,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327277954] [2022-11-25 18:35:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:42,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:35:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:44,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:44,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 18:35:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:44,189 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:35:44,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:44,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327277954] [2022-11-25 18:35:44,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327277954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:44,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:44,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:35:44,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946460383] [2022-11-25 18:35:44,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:44,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:35:44,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:44,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:35:44,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:35:44,192 INFO L87 Difference]: Start difference. First operand 2738 states and 3897 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:35:46,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:35:46,943 INFO L93 Difference]: Finished difference Result 7142 states and 10293 transitions. [2022-11-25 18:35:46,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:35:46,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2022-11-25 18:35:46,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:35:46,992 INFO L225 Difference]: With dead ends: 7142 [2022-11-25 18:35:46,992 INFO L226 Difference]: Without dead ends: 4407 [2022-11-25 18:35:47,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:35:47,010 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 882 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:35:47,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1699 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 18:35:47,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-11-25 18:35:47,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4078. [2022-11-25 18:35:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4078 states, 3227 states have (on average 1.3898357607685157) internal successors, (4485), 3276 states have internal predecessors, (4485), 647 states have call successors, (647), 221 states have call predecessors, (647), 203 states have return successors, (637), 616 states have call predecessors, (637), 637 states have call successors, (637) [2022-11-25 18:35:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4078 states to 4078 states and 5769 transitions. [2022-11-25 18:35:47,499 INFO L78 Accepts]: Start accepts. Automaton has 4078 states and 5769 transitions. Word has length 54 [2022-11-25 18:35:47,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:47,500 INFO L495 AbstractCegarLoop]: Abstraction has 4078 states and 5769 transitions. [2022-11-25 18:35:47,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:35:47,500 INFO L276 IsEmpty]: Start isEmpty. Operand 4078 states and 5769 transitions. [2022-11-25 18:35:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 18:35:47,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:47,507 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 18:35:47,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:35:47,508 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:47,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:47,509 INFO L85 PathProgramCache]: Analyzing trace with hash -345950285, now seen corresponding path program 1 times [2022-11-25 18:35:47,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:47,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472313614] [2022-11-25 18:35:47,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:47,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:48,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:35:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:48,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 18:35:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:48,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:48,682 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 18:35:48,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:48,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472313614] [2022-11-25 18:35:48,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472313614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:48,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:48,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:35:48,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041912747] [2022-11-25 18:35:48,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:48,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:35:48,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:35:48,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:35:48,685 INFO L87 Difference]: Start difference. First operand 4078 states and 5769 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:35:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:35:51,272 INFO L93 Difference]: Finished difference Result 9916 states and 14193 transitions. [2022-11-25 18:35:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:35:51,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 75 [2022-11-25 18:35:51,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:35:51,307 INFO L225 Difference]: With dead ends: 9916 [2022-11-25 18:35:51,308 INFO L226 Difference]: Without dead ends: 5841 [2022-11-25 18:35:51,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:35:51,321 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 835 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:35:51,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 1934 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 18:35:51,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5841 states. [2022-11-25 18:35:51,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5841 to 5418. [2022-11-25 18:35:51,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 4301 states have (on average 1.3850267379679144) internal successors, (5957), 4362 states have internal predecessors, (5957), 847 states have call successors, (847), 291 states have call predecessors, (847), 269 states have return successors, (837), 812 states have call predecessors, (837), 837 states have call successors, (837) [2022-11-25 18:35:51,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 7641 transitions. [2022-11-25 18:35:51,686 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 7641 transitions. Word has length 75 [2022-11-25 18:35:51,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:51,686 INFO L495 AbstractCegarLoop]: Abstraction has 5418 states and 7641 transitions. [2022-11-25 18:35:51,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 18:35:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 7641 transitions. [2022-11-25 18:35:51,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-25 18:35:51,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:51,693 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:35:51,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:35:51,693 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:51,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2110184206, now seen corresponding path program 1 times [2022-11-25 18:35:51,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:51,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703638412] [2022-11-25 18:35:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:51,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 18:35:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:35:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 18:35:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 18:35:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:35:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 18:35:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:35:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 18:35:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 18:35:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:52,731 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 18:35:52,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:52,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703638412] [2022-11-25 18:35:52,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703638412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:52,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:52,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:35:52,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057305308] [2022-11-25 18:35:52,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:52,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:35:52,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:52,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:35:52,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:35:52,734 INFO L87 Difference]: Start difference. First operand 5418 states and 7641 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 18:35:57,001 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 [] [2022-11-25 18:35:58,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:35:58,176 INFO L93 Difference]: Finished difference Result 13334 states and 19099 transitions. [2022-11-25 18:35:58,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:35:58,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2022-11-25 18:35:58,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:35:58,227 INFO L225 Difference]: With dead ends: 13334 [2022-11-25 18:35:58,228 INFO L226 Difference]: Without dead ends: 7919 [2022-11-25 18:35:58,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:35:58,250 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1076 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 541 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:35:58,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2096 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 939 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 18:35:58,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7919 states. [2022-11-25 18:35:58,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7919 to 7040. [2022-11-25 18:35:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 5745 states have (on average 1.408006962576153) internal successors, (8089), 5816 states have internal predecessors, (8089), 957 states have call successors, (957), 365 states have call predecessors, (957), 337 states have return successors, (941), 906 states have call predecessors, (941), 941 states have call successors, (941) [2022-11-25 18:35:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 9987 transitions. [2022-11-25 18:35:58,811 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 9987 transitions. Word has length 92 [2022-11-25 18:35:58,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:58,811 INFO L495 AbstractCegarLoop]: Abstraction has 7040 states and 9987 transitions. [2022-11-25 18:35:58,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 18:35:58,812 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 9987 transitions. [2022-11-25 18:35:58,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-25 18:35:58,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:58,821 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 18:35:58,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:35:58,822 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:35:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:58,822 INFO L85 PathProgramCache]: Analyzing trace with hash 250314282, now seen corresponding path program 1 times [2022-11-25 18:35:58,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:58,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809301454] [2022-11-25 18:35:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:58,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:00,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:00,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 18:36:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:00,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:36:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 18:36:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 18:36:00,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:36:00,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809301454] [2022-11-25 18:36:00,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809301454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:36:00,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663024411] [2022-11-25 18:36:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:36:00,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:36:00,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:36:00,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:36:00,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:36:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:03,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 13345 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:36:03,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:36:03,410 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 18:36:03,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:36:03,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663024411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:36:03,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:36:03,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2022-11-25 18:36:03,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773562515] [2022-11-25 18:36:03,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:36:03,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:36:03,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:36:03,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:36:03,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:36:03,419 INFO L87 Difference]: Start difference. First operand 7040 states and 9987 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 18:36:06,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:36:06,068 INFO L93 Difference]: Finished difference Result 17802 states and 25740 transitions. [2022-11-25 18:36:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:36:06,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 107 [2022-11-25 18:36:06,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:36:06,117 INFO L225 Difference]: With dead ends: 17802 [2022-11-25 18:36:06,117 INFO L226 Difference]: Without dead ends: 10725 [2022-11-25 18:36:06,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-25 18:36:06,146 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 729 mSDsluCounter, 5768 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 6855 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:36:06,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 6855 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 18:36:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10725 states. [2022-11-25 18:36:06,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10725 to 7173. [2022-11-25 18:36:06,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7173 states, 5846 states have (on average 1.4050632911392404) internal successors, (8214), 5917 states have internal predecessors, (8214), 989 states have call successors, (989), 365 states have call predecessors, (989), 337 states have return successors, (973), 938 states have call predecessors, (973), 973 states have call successors, (973) [2022-11-25 18:36:06,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7173 states to 7173 states and 10176 transitions. [2022-11-25 18:36:06,799 INFO L78 Accepts]: Start accepts. Automaton has 7173 states and 10176 transitions. Word has length 107 [2022-11-25 18:36:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:36:06,800 INFO L495 AbstractCegarLoop]: Abstraction has 7173 states and 10176 transitions. [2022-11-25 18:36:06,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 18:36:06,801 INFO L276 IsEmpty]: Start isEmpty. Operand 7173 states and 10176 transitions. [2022-11-25 18:36:06,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-25 18:36:06,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:36:06,809 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 18:36:06,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:36:07,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 18:36:07,023 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:36:07,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:36:07,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1350756824, now seen corresponding path program 1 times [2022-11-25 18:36:07,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:36:07,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877440842] [2022-11-25 18:36:07,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:36:07,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:36:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 18:36:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:08,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:08,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:09,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:36:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 18:36:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 18:36:09,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:36:09,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877440842] [2022-11-25 18:36:09,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877440842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:36:09,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:36:09,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 18:36:09,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061953410] [2022-11-25 18:36:09,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:36:09,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:36:09,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:36:09,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:36:09,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:36:09,017 INFO L87 Difference]: Start difference. First operand 7173 states and 10176 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 18:36:13,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:36:13,957 INFO L93 Difference]: Finished difference Result 24835 states and 37120 transitions. [2022-11-25 18:36:13,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:36:13,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 107 [2022-11-25 18:36:13,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:36:14,034 INFO L225 Difference]: With dead ends: 24835 [2022-11-25 18:36:14,035 INFO L226 Difference]: Without dead ends: 17665 [2022-11-25 18:36:14,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:36:14,061 INFO L413 NwaCegarLoop]: 1200 mSDtfsCounter, 1791 mSDsluCounter, 5493 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 6693 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:36:14,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 6693 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 18:36:14,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17665 states. [2022-11-25 18:36:14,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17665 to 7221. [2022-11-25 18:36:14,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7221 states, 5894 states have (on average 1.4017645062775703) internal successors, (8262), 5965 states have internal predecessors, (8262), 989 states have call successors, (989), 365 states have call predecessors, (989), 337 states have return successors, (973), 938 states have call predecessors, (973), 973 states have call successors, (973) [2022-11-25 18:36:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7221 states to 7221 states and 10224 transitions. [2022-11-25 18:36:14,780 INFO L78 Accepts]: Start accepts. Automaton has 7221 states and 10224 transitions. Word has length 107 [2022-11-25 18:36:14,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:36:14,781 INFO L495 AbstractCegarLoop]: Abstraction has 7221 states and 10224 transitions. [2022-11-25 18:36:14,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 18:36:14,782 INFO L276 IsEmpty]: Start isEmpty. Operand 7221 states and 10224 transitions. [2022-11-25 18:36:14,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-25 18:36:14,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:36:14,790 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2022-11-25 18:36:14,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:36:14,790 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:36:14,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:36:14,791 INFO L85 PathProgramCache]: Analyzing trace with hash -257122482, now seen corresponding path program 1 times [2022-11-25 18:36:14,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:36:14,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386103453] [2022-11-25 18:36:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:36:14,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:36:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 18:36:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 18:36:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:36:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 18:36:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 18:36:16,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:36:16,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386103453] [2022-11-25 18:36:16,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386103453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:36:16,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:36:16,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:36:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022786160] [2022-11-25 18:36:16,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:36:16,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:36:16,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:36:16,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:36:16,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:36:16,598 INFO L87 Difference]: Start difference. First operand 7221 states and 10224 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:36:20,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:36:20,306 INFO L93 Difference]: Finished difference Result 23711 states and 35380 transitions. [2022-11-25 18:36:20,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:36:20,307 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 134 [2022-11-25 18:36:20,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:36:20,382 INFO L225 Difference]: With dead ends: 23711 [2022-11-25 18:36:20,383 INFO L226 Difference]: Without dead ends: 16493 [2022-11-25 18:36:20,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:36:20,407 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 1448 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 3619 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:36:20,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 3619 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 18:36:20,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16493 states. [2022-11-25 18:36:21,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16493 to 7197. [2022-11-25 18:36:21,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7197 states, 5870 states have (on average 1.3979557069846678) internal successors, (8206), 5941 states have internal predecessors, (8206), 989 states have call successors, (989), 365 states have call predecessors, (989), 337 states have return successors, (973), 938 states have call predecessors, (973), 973 states have call successors, (973) [2022-11-25 18:36:21,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7197 states to 7197 states and 10168 transitions. [2022-11-25 18:36:21,450 INFO L78 Accepts]: Start accepts. Automaton has 7197 states and 10168 transitions. Word has length 134 [2022-11-25 18:36:21,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:36:21,451 INFO L495 AbstractCegarLoop]: Abstraction has 7197 states and 10168 transitions. [2022-11-25 18:36:21,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:36:21,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7197 states and 10168 transitions. [2022-11-25 18:36:21,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-25 18:36:21,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:36:21,461 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 18:36:21,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 18:36:21,462 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:36:21,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:36:21,463 INFO L85 PathProgramCache]: Analyzing trace with hash 760771810, now seen corresponding path program 1 times [2022-11-25 18:36:21,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:36:21,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862875127] [2022-11-25 18:36:21,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:36:21,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:36:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:22,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:22,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:22,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-25 18:36:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:22,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 18:36:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:23,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:23,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 18:36:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:23,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:23,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:23,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:23,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:36:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 18:36:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 18:36:23,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:36:23,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862875127] [2022-11-25 18:36:23,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862875127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:36:23,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:36:23,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:36:23,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044785666] [2022-11-25 18:36:23,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:36:23,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:36:23,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:36:23,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:36:23,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:36:23,063 INFO L87 Difference]: Start difference. First operand 7197 states and 10168 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 18:36:27,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:36:27,252 INFO L93 Difference]: Finished difference Result 24364 states and 36297 transitions. [2022-11-25 18:36:27,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:36:27,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2022-11-25 18:36:27,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:36:27,320 INFO L225 Difference]: With dead ends: 24364 [2022-11-25 18:36:27,320 INFO L226 Difference]: Without dead ends: 17170 [2022-11-25 18:36:27,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:36:27,344 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 1201 mSDsluCounter, 4141 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 5653 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:36:27,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 5653 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 18:36:27,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17170 states. [2022-11-25 18:36:28,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17170 to 7213. [2022-11-25 18:36:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7213 states, 5886 states have (on average 1.396873938158342) internal successors, (8222), 5957 states have internal predecessors, (8222), 989 states have call successors, (989), 365 states have call predecessors, (989), 337 states have return successors, (973), 938 states have call predecessors, (973), 973 states have call successors, (973) [2022-11-25 18:36:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 10184 transitions. [2022-11-25 18:36:28,274 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 10184 transitions. Word has length 135 [2022-11-25 18:36:28,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:36:28,275 INFO L495 AbstractCegarLoop]: Abstraction has 7213 states and 10184 transitions. [2022-11-25 18:36:28,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 18:36:28,275 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 10184 transitions. [2022-11-25 18:36:28,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-25 18:36:28,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:36:28,282 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-25 18:36:28,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 18:36:28,282 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:36:28,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:36:28,283 INFO L85 PathProgramCache]: Analyzing trace with hash 582193970, now seen corresponding path program 1 times [2022-11-25 18:36:28,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:36:28,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531945720] [2022-11-25 18:36:28,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:36:28,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:36:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 18:36:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 18:36:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:36:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 18:36:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-25 18:36:30,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:36:30,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531945720] [2022-11-25 18:36:30,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531945720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:36:30,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:36:30,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:36:30,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329047568] [2022-11-25 18:36:30,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:36:30,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:36:30,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:36:30,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:36:30,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:36:30,838 INFO L87 Difference]: Start difference. First operand 7213 states and 10184 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:36:37,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:36:37,105 INFO L93 Difference]: Finished difference Result 20674 states and 29928 transitions. [2022-11-25 18:36:37,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:36:37,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 144 [2022-11-25 18:36:37,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:36:37,163 INFO L225 Difference]: With dead ends: 20674 [2022-11-25 18:36:37,163 INFO L226 Difference]: Without dead ends: 13464 [2022-11-25 18:36:37,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:36:37,181 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 2030 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 3933 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:36:37,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 3933 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 2259 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-25 18:36:37,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13464 states. [2022-11-25 18:36:38,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13464 to 9042. [2022-11-25 18:36:38,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 7385 states have (on average 1.4128639133378469) internal successors, (10434), 7468 states have internal predecessors, (10434), 1230 states have call successors, (1230), 461 states have call predecessors, (1230), 426 states have return successors, (1214), 1172 states have call predecessors, (1214), 1214 states have call successors, (1214) [2022-11-25 18:36:38,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 12878 transitions. [2022-11-25 18:36:38,155 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 12878 transitions. Word has length 144 [2022-11-25 18:36:38,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:36:38,156 INFO L495 AbstractCegarLoop]: Abstraction has 9042 states and 12878 transitions. [2022-11-25 18:36:38,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:36:38,156 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 12878 transitions. [2022-11-25 18:36:38,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-25 18:36:38,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:36:38,164 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-11-25 18:36:38,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 18:36:38,164 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:36:38,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:36:38,165 INFO L85 PathProgramCache]: Analyzing trace with hash -2042128073, now seen corresponding path program 1 times [2022-11-25 18:36:38,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:36:38,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273720726] [2022-11-25 18:36:38,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:36:38,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:36:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 18:36:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 18:36:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:36:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 18:36:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-25 18:36:39,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:36:39,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273720726] [2022-11-25 18:36:39,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273720726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:36:39,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:36:39,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:36:39,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328296857] [2022-11-25 18:36:39,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:36:39,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:36:39,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:36:39,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:36:39,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:36:39,173 INFO L87 Difference]: Start difference. First operand 9042 states and 12878 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:36:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:36:43,178 INFO L93 Difference]: Finished difference Result 20600 states and 29629 transitions. [2022-11-25 18:36:43,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:36:43,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 147 [2022-11-25 18:36:43,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:36:43,238 INFO L225 Difference]: With dead ends: 20600 [2022-11-25 18:36:43,238 INFO L226 Difference]: Without dead ends: 11561 [2022-11-25 18:36:43,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:36:43,269 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 1096 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:36:43,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 2656 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 18:36:43,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11561 states. [2022-11-25 18:36:44,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11561 to 10790. [2022-11-25 18:36:44,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10790 states, 8835 states have (on average 1.4073571024335032) internal successors, (12434), 8930 states have internal predecessors, (12434), 1452 states have call successors, (1452), 541 states have call predecessors, (1452), 502 states have return successors, (1436), 1390 states have call predecessors, (1436), 1436 states have call successors, (1436) [2022-11-25 18:36:44,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10790 states to 10790 states and 15322 transitions. [2022-11-25 18:36:44,541 INFO L78 Accepts]: Start accepts. Automaton has 10790 states and 15322 transitions. Word has length 147 [2022-11-25 18:36:44,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:36:44,542 INFO L495 AbstractCegarLoop]: Abstraction has 10790 states and 15322 transitions. [2022-11-25 18:36:44,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:36:44,543 INFO L276 IsEmpty]: Start isEmpty. Operand 10790 states and 15322 transitions. [2022-11-25 18:36:44,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-25 18:36:44,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:36:44,552 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:36:44,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 18:36:44,552 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:36:44,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:36:44,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1359583196, now seen corresponding path program 1 times [2022-11-25 18:36:44,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:36:44,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348781792] [2022-11-25 18:36:44,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:36:44,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:36:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-25 18:36:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 18:36:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 18:36:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:36:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 18:36:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-25 18:36:45,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:36:45,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348781792] [2022-11-25 18:36:45,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348781792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:36:45,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:36:45,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:36:45,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987045951] [2022-11-25 18:36:45,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:36:45,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:36:45,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:36:45,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:36:45,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:36:45,705 INFO L87 Difference]: Start difference. First operand 10790 states and 15322 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 18:36:49,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:36:49,474 INFO L93 Difference]: Finished difference Result 24200 states and 34693 transitions. [2022-11-25 18:36:49,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:36:49,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 147 [2022-11-25 18:36:49,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:36:49,522 INFO L225 Difference]: With dead ends: 24200 [2022-11-25 18:36:49,522 INFO L226 Difference]: Without dead ends: 13413 [2022-11-25 18:36:49,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:36:49,550 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 915 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:36:49,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 2685 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 18:36:49,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13413 states. [2022-11-25 18:36:51,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13413 to 12538. [2022-11-25 18:36:51,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12538 states, 10285 states have (on average 1.4034030140982012) internal successors, (14434), 10392 states have internal predecessors, (14434), 1674 states have call successors, (1674), 621 states have call predecessors, (1674), 578 states have return successors, (1658), 1608 states have call predecessors, (1658), 1658 states have call successors, (1658) [2022-11-25 18:36:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12538 states to 12538 states and 17766 transitions. [2022-11-25 18:36:51,219 INFO L78 Accepts]: Start accepts. Automaton has 12538 states and 17766 transitions. Word has length 147 [2022-11-25 18:36:51,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:36:51,220 INFO L495 AbstractCegarLoop]: Abstraction has 12538 states and 17766 transitions. [2022-11-25 18:36:51,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 18:36:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 12538 states and 17766 transitions. [2022-11-25 18:36:51,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-25 18:36:51,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:36:51,230 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2022-11-25 18:36:51,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 18:36:51,230 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:36:51,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:36:51,231 INFO L85 PathProgramCache]: Analyzing trace with hash -2062836862, now seen corresponding path program 1 times [2022-11-25 18:36:51,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:36:51,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134452791] [2022-11-25 18:36:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:36:51,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:36:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 18:36:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 18:36:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:36:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:36:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:36:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 18:36:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-25 18:36:52,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:36:52,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134452791] [2022-11-25 18:36:52,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134452791] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:36:52,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183002628] [2022-11-25 18:36:52,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:36:52,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:36:52,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:36:52,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:36:52,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:36:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:36:55,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 13482 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:36:55,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:36:55,352 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 18:36:55,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:36:55,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183002628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:36:55,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:36:55,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2022-11-25 18:36:55,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190711226] [2022-11-25 18:36:55,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:36:55,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:36:55,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:36:55,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:36:55,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:36:55,355 INFO L87 Difference]: Start difference. First operand 12538 states and 17766 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-25 18:36:59,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:36:59,459 INFO L93 Difference]: Finished difference Result 37607 states and 53290 transitions. [2022-11-25 18:36:59,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:36:59,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 141 [2022-11-25 18:36:59,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:36:59,619 INFO L225 Difference]: With dead ends: 37607 [2022-11-25 18:36:59,619 INFO L226 Difference]: Without dead ends: 37592 [2022-11-25 18:36:59,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:36:59,640 INFO L413 NwaCegarLoop]: 1347 mSDtfsCounter, 1286 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:36:59,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 2770 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 18:36:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37592 states. [2022-11-25 18:37:03,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37592 to 37448. [2022-11-25 18:37:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37448 states, 30721 states have (on average 1.4046417759838548) internal successors, (43152), 31034 states have internal predecessors, (43152), 5000 states have call successors, (5000), 1849 states have call predecessors, (5000), 1726 states have return successors, (4966), 4816 states have call predecessors, (4966), 4966 states have call successors, (4966) [2022-11-25 18:37:03,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37448 states to 37448 states and 53118 transitions. [2022-11-25 18:37:03,535 INFO L78 Accepts]: Start accepts. Automaton has 37448 states and 53118 transitions. Word has length 141 [2022-11-25 18:37:03,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:37:03,536 INFO L495 AbstractCegarLoop]: Abstraction has 37448 states and 53118 transitions. [2022-11-25 18:37:03,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-25 18:37:03,536 INFO L276 IsEmpty]: Start isEmpty. Operand 37448 states and 53118 transitions. [2022-11-25 18:37:03,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 18:37:03,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:37:03,552 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-11-25 18:37:03,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:37:03,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb7c878-70bd-485a-a372-9e6aac486209/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 18:37:03,779 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:37:03,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:37:03,779 INFO L85 PathProgramCache]: Analyzing trace with hash -896439516, now seen corresponding path program 1 times [2022-11-25 18:37:03,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:37:03,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312565373] [2022-11-25 18:37:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:37:03,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:37:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:04,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:37:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 18:37:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 18:37:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:37:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:37:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 18:37:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-25 18:37:05,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:37:05,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312565373] [2022-11-25 18:37:05,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312565373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:37:05,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:37:05,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:37:05,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078226046] [2022-11-25 18:37:05,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:37:05,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:37:05,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:37:05,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:37:05,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:37:05,067 INFO L87 Difference]: Start difference. First operand 37448 states and 53118 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:37:12,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:37:12,590 INFO L93 Difference]: Finished difference Result 83008 states and 118851 transitions. [2022-11-25 18:37:12,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:37:12,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 145 [2022-11-25 18:37:12,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:37:12,747 INFO L225 Difference]: With dead ends: 83008 [2022-11-25 18:37:12,747 INFO L226 Difference]: Without dead ends: 45563 [2022-11-25 18:37:12,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:37:12,829 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 1098 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:37:12,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 2632 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 18:37:12,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45563 states. [2022-11-25 18:37:17,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45563 to 42684. [2022-11-25 18:37:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42684 states, 35063 states have (on average 1.4015343809713943) internal successors, (49142), 35412 states have internal predecessors, (49142), 5666 states have call successors, (5666), 2089 states have call predecessors, (5666), 1954 states have return successors, (5632), 5470 states have call predecessors, (5632), 5632 states have call successors, (5632) [2022-11-25 18:37:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42684 states to 42684 states and 60440 transitions. [2022-11-25 18:37:17,729 INFO L78 Accepts]: Start accepts. Automaton has 42684 states and 60440 transitions. Word has length 145 [2022-11-25 18:37:17,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:37:17,730 INFO L495 AbstractCegarLoop]: Abstraction has 42684 states and 60440 transitions. [2022-11-25 18:37:17,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:37:17,731 INFO L276 IsEmpty]: Start isEmpty. Operand 42684 states and 60440 transitions. [2022-11-25 18:37:17,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-25 18:37:17,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:37:17,744 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:37:17,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 18:37:17,745 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:37:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:37:17,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1192881735, now seen corresponding path program 1 times [2022-11-25 18:37:17,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:37:17,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493244536] [2022-11-25 18:37:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:37:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:37:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:37:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 18:37:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 18:37:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:37:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:37:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 18:37:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:19,291 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-25 18:37:19,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:37:19,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493244536] [2022-11-25 18:37:19,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493244536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:37:19,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:37:19,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:37:19,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17219898] [2022-11-25 18:37:19,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:37:19,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:37:19,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:37:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:37:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:37:19,295 INFO L87 Difference]: Start difference. First operand 42684 states and 60440 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:37:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:37:27,000 INFO L93 Difference]: Finished difference Result 88222 states and 125672 transitions. [2022-11-25 18:37:27,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:37:27,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 147 [2022-11-25 18:37:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:37:27,185 INFO L225 Difference]: With dead ends: 88222 [2022-11-25 18:37:27,185 INFO L226 Difference]: Without dead ends: 45541 [2022-11-25 18:37:27,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:37:27,278 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 998 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:37:27,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 2252 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 18:37:27,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45541 states. [2022-11-25 18:37:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45541 to 42684. [2022-11-25 18:37:32,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42684 states, 35063 states have (on average 1.401192139862533) internal successors, (49130), 35412 states have internal predecessors, (49130), 5666 states have call successors, (5666), 2089 states have call predecessors, (5666), 1954 states have return successors, (5632), 5470 states have call predecessors, (5632), 5632 states have call successors, (5632) [2022-11-25 18:37:32,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42684 states to 42684 states and 60428 transitions. [2022-11-25 18:37:32,768 INFO L78 Accepts]: Start accepts. Automaton has 42684 states and 60428 transitions. Word has length 147 [2022-11-25 18:37:32,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:37:32,769 INFO L495 AbstractCegarLoop]: Abstraction has 42684 states and 60428 transitions. [2022-11-25 18:37:32,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:37:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 42684 states and 60428 transitions. [2022-11-25 18:37:32,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 18:37:32,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:37:32,783 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:37:32,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 18:37:32,784 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:37:32,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:37:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash 987489022, now seen corresponding path program 1 times [2022-11-25 18:37:32,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:37:32,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280764365] [2022-11-25 18:37:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:37:32,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:37:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:37:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 18:37:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 18:37:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 18:37:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 18:37:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 18:37:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 18:37:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:37:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-25 18:37:34,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:37:34,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280764365] [2022-11-25 18:37:34,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280764365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:37:34,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:37:34,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:37:34,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92732371] [2022-11-25 18:37:34,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:37:34,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:37:34,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:37:34,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:37:34,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:37:34,292 INFO L87 Difference]: Start difference. First operand 42684 states and 60428 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 18:37:41,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:37:41,021 INFO L93 Difference]: Finished difference Result 88222 states and 125648 transitions. [2022-11-25 18:37:41,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:37:41,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 148 [2022-11-25 18:37:41,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:37:41,158 INFO L225 Difference]: With dead ends: 88222 [2022-11-25 18:37:41,158 INFO L226 Difference]: Without dead ends: 45541 [2022-11-25 18:37:41,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:37:41,237 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 998 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:37:41,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 2280 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 18:37:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45541 states.