./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN --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 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- 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-6b4ec56 [2022-11-20 12:41:05,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:41:05,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:41:05,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:41:05,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:41:05,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:41:05,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:41:05,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:41:05,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:41:05,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:41:05,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:41:05,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:41:05,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:41:05,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:41:05,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:41:05,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:41:05,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:41:05,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:41:05,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:41:05,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:41:05,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:41:05,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:41:05,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:41:05,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:41:05,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:41:05,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:41:05,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:41:05,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:41:05,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:41:05,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:41:05,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:41:05,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:41:05,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:41:05,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:41:05,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:41:05,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:41:05,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:41:05,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:41:05,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:41:05,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:41:05,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:41:05,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:41:05,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:41:05,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:41:05,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:41:05,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:41:05,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:41:05,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:41:05,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:41:05,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:41:05,675 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:41:05,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:41:05,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:41:05,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:41:05,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:41:05,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:41:05,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:41:05,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:41:05,676 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:41:05,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:41:05,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:41:05,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:41:05,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:41:05,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:41:05,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:41:05,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:41:05,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:41:05,679 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:41:05,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:41:05,679 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:41:05,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:41:05,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:41:05,680 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2022-11-20 12:41:05,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:41:06,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:41:06,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:41:06,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:41:06,041 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:41:06,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-11-20 12:41:09,604 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:41:10,323 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:41:10,324 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-11-20 12:41:10,387 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/data/2b30e6d73/49c30dea18e146a5913a18eeec3a71fc/FLAGf395cdcbf [2022-11-20 12:41:10,410 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/data/2b30e6d73/49c30dea18e146a5913a18eeec3a71fc [2022-11-20 12:41:10,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:41:10,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:41:10,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:41:10,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:41:10,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:41:10,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:41:10" (1/1) ... [2022-11-20 12:41:10,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322448d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:10, skipping insertion in model container [2022-11-20 12:41:10,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:41:10" (1/1) ... [2022-11-20 12:41:10,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:41:10,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:41:13,248 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_01e85c61-0b72-4bc4-b479-a74407f5fd4f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-11-20 12:41:13,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:41:13,525 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:41:13,958 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_01e85c61-0b72-4bc4-b479-a74407f5fd4f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-11-20 12:41:13,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:41:14,141 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:41:14,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14 WrapperNode [2022-11-20 12:41:14,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:41:14,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:41:14,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:41:14,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:41:14,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,427 INFO L138 Inliner]: procedures = 384, calls = 3030, calls flagged for inlining = 180, calls inlined = 148, statements flattened = 6793 [2022-11-20 12:41:14,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:41:14,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:41:14,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:41:14,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:41:14,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,773 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:41:14,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:41:14,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:41:14,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:41:14,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (1/1) ... [2022-11-20 12:41:14,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:41:14,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:41:14,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:41:14,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:41:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-20 12:41:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-20 12:41:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-20 12:41:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-20 12:41:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 12:41:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 12:41:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-20 12:41:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-20 12:41:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2022-11-20 12:41:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2022-11-20 12:41:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:41:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:41:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:41:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:41:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2022-11-20 12:41:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2022-11-20 12:41:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:41:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:41:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-20 12:41:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-20 12:41:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2022-11-20 12:41:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2022-11-20 12:41:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-20 12:41:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-20 12:41:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-20 12:41:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-20 12:41:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-20 12:41:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-20 12:41:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-11-20 12:41:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-11-20 12:41:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 12:41:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 12:41:14,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-20 12:41:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-20 12:41:14,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 12:41:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 12:41:14,942 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-20 12:41:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-20 12:41:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:41:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:41:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 12:41:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 12:41:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2022-11-20 12:41:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2022-11-20 12:41:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2022-11-20 12:41:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2022-11-20 12:41:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:41:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 12:41:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 12:41:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-20 12:41:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-20 12:41:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-11-20 12:41:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-11-20 12:41:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2022-11-20 12:41:14,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2022-11-20 12:41:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:41:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-20 12:41:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-20 12:41:14,947 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-20 12:41:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-11-20 12:41:14,948 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-11-20 12:41:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2022-11-20 12:41:14,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2022-11-20 12:41:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ftdi_module_lock [2022-11-20 12:41:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ftdi_module_lock [2022-11-20 12:41:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:41:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-11-20 12:41:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-11-20 12:41:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:41:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2022-11-20 12:41:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2022-11-20 12:41:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-20 12:41:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-20 12:41:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-20 12:41:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-20 12:41:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 12:41:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 12:41:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2022-11-20 12:41:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2022-11-20 12:41:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2022-11-20 12:41:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2022-11-20 12:41:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-20 12:41:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-20 12:41:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 12:41:14,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 12:41:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-20 12:41:14,953 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-20 12:41:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-20 12:41:14,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-20 12:41:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2022-11-20 12:41:14,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2022-11-20 12:41:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2022-11-20 12:41:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2022-11-20 12:41:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2022-11-20 12:41:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2022-11-20 12:41:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2022-11-20 12:41:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2022-11-20 12:41:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2022-11-20 12:41:14,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2022-11-20 12:41:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 12:41:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2022-11-20 12:41:14,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2022-11-20 12:41:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-20 12:41:14,957 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-20 12:41:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-20 12:41:14,957 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-20 12:41:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:41:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-20 12:41:14,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-20 12:41:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2022-11-20 12:41:14,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2022-11-20 12:41:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2022-11-20 12:41:14,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2022-11-20 12:41:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2022-11-20 12:41:14,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2022-11-20 12:41:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2022-11-20 12:41:14,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2022-11-20 12:41:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-20 12:41:14,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-20 12:41:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2022-11-20 12:41:14,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2022-11-20 12:41:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-20 12:41:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-20 12:41:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:41:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-20 12:41:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-20 12:41:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:41:14,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:41:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_89 [2022-11-20 12:41:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_89 [2022-11-20 12:41:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_88 [2022-11-20 12:41:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_88 [2022-11-20 12:41:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_87 [2022-11-20 12:41:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_87 [2022-11-20 12:41:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2022-11-20 12:41:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2022-11-20 12:41:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 12:41:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 12:41:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2022-11-20 12:41:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2022-11-20 12:41:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2022-11-20 12:41:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2022-11-20 12:41:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:41:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2022-11-20 12:41:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2022-11-20 12:41:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 12:41:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 12:41:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-20 12:41:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-20 12:41:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-11-20 12:41:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-11-20 12:41:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:41:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-11-20 12:41:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-11-20 12:41:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:41:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2022-11-20 12:41:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2022-11-20 12:41:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:41:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:41:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-20 12:41:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-20 12:41:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2022-11-20 12:41:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2022-11-20 12:41:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-20 12:41:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-20 12:41:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2022-11-20 12:41:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2022-11-20 12:41:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-20 12:41:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-20 12:41:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 12:41:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 12:41:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 12:41:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 12:41:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 12:41:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 12:41:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 12:41:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 12:41:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2022-11-20 12:41:14,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2022-11-20 12:41:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ftdi_module_lock [2022-11-20 12:41:14,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ftdi_module_lock [2022-11-20 12:41:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-20 12:41:14,985 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-20 12:41:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:41:14,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:41:14,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:41:15,909 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:41:15,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:41:17,130 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:41:36,448 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:41:36,541 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:41:36,541 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:41:36,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:41:36 BoogieIcfgContainer [2022-11-20 12:41:36,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:41:36,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:41:36,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:41:36,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:41:36,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:41:10" (1/3) ... [2022-11-20 12:41:36,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58625711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:41:36, skipping insertion in model container [2022-11-20 12:41:36,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:14" (2/3) ... [2022-11-20 12:41:36,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58625711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:41:36, skipping insertion in model container [2022-11-20 12:41:36,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:41:36" (3/3) ... [2022-11-20 12:41:36,564 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-11-20 12:41:36,595 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:41:36,595 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:41:36,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:41:36,730 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;@10a2037e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:41:36,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:41:36,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 1701 states, 1153 states have (on average 1.4058976582827407) internal successors, (1621), 1206 states have internal predecessors, (1621), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) [2022-11-20 12:41:36,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 12:41:36,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:36,773 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:36,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:36,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:36,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1576858883, now seen corresponding path program 1 times [2022-11-20 12:41:36,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:41:36,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277848212] [2022-11-20 12:41:36,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:36,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:41:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:41:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:41:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:41:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:41:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:41:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:41:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:41:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:41:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:41:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:41:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:41:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:41:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:41:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:41:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:41:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:41:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:41:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:41:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:41:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:41:37,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:41:37,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277848212] [2022-11-20 12:41:37,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277848212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:41:37,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:41:37,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:41:37,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922849795] [2022-11-20 12:41:37,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:37,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:41:37,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:41:37,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:41:37,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:41:38,003 INFO L87 Difference]: Start difference. First operand has 1701 states, 1153 states have (on average 1.4058976582827407) internal successors, (1621), 1206 states have internal predecessors, (1621), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:41:39,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:41:43,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:41:47,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:41:48,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:41:51,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:41:56,155 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 [] [2022-11-20 12:41:59,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:59,344 INFO L93 Difference]: Finished difference Result 3709 states and 5973 transitions. [2022-11-20 12:41:59,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:41:59,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2022-11-20 12:41:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:59,398 INFO L225 Difference]: With dead ends: 3709 [2022-11-20 12:41:59,398 INFO L226 Difference]: Without dead ends: 1999 [2022-11-20 12:41:59,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:41:59,439 INFO L413 NwaCegarLoop]: 2143 mSDtfsCounter, 1529 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 1924 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 3215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1924 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:59,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 3362 Invalid, 3215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1924 Valid, 1288 Invalid, 3 Unknown, 0 Unchecked, 20.7s Time] [2022-11-20 12:41:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2022-11-20 12:41:59,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1687. [2022-11-20 12:41:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1148 states have (on average 1.3980836236933798) internal successors, (1605), 1192 states have internal predecessors, (1605), 454 states have call successors, (454), 85 states have call predecessors, (454), 84 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-11-20 12:41:59,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2504 transitions. [2022-11-20 12:41:59,709 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2504 transitions. Word has length 135 [2022-11-20 12:41:59,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:59,710 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2504 transitions. [2022-11-20 12:41:59,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:41:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2504 transitions. [2022-11-20 12:41:59,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 12:41:59,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:59,730 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:59,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:41:59,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:59,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:59,732 INFO L85 PathProgramCache]: Analyzing trace with hash -212032333, now seen corresponding path program 1 times [2022-11-20 12:41:59,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:41:59,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631434433] [2022-11-20 12:41:59,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:59,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:41:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:42:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:42:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:42:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:42:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:42:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:42:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:01,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:42:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:42:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:42:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:42:01,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:01,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631434433] [2022-11-20 12:42:01,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631434433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:01,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:01,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:42:01,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237741498] [2022-11-20 12:42:01,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:01,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:42:01,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:01,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:42:01,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:42:01,080 INFO L87 Difference]: Start difference. First operand 1687 states and 2504 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:42:03,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:05,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:08,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:14,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:18,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:20,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:22,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:42:22,608 INFO L93 Difference]: Finished difference Result 2063 states and 3225 transitions. [2022-11-20 12:42:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:42:22,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2022-11-20 12:42:22,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:42:22,626 INFO L225 Difference]: With dead ends: 2063 [2022-11-20 12:42:22,626 INFO L226 Difference]: Without dead ends: 2058 [2022-11-20 12:42:22,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:42:22,629 INFO L413 NwaCegarLoop]: 2129 mSDtfsCounter, 3782 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 2357 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3924 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 3857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2357 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:42:22,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3924 Valid, 3452 Invalid, 3857 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2357 Valid, 1497 Invalid, 3 Unknown, 0 Unchecked, 21.2s Time] [2022-11-20 12:42:22,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2022-11-20 12:42:22,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 1744. [2022-11-20 12:42:22,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1189 states have (on average 1.3936080740117747) internal successors, (1657), 1233 states have internal predecessors, (1657), 461 states have call successors, (461), 94 states have call predecessors, (461), 93 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) [2022-11-20 12:42:22,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2572 transitions. [2022-11-20 12:42:22,753 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2572 transitions. Word has length 135 [2022-11-20 12:42:22,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:42:22,754 INFO L495 AbstractCegarLoop]: Abstraction has 1744 states and 2572 transitions. [2022-11-20 12:42:22,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 12:42:22,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2572 transitions. [2022-11-20 12:42:22,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 12:42:22,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:42:22,762 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:42:22,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:42:22,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:42:22,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:42:22,763 INFO L85 PathProgramCache]: Analyzing trace with hash 119902520, now seen corresponding path program 1 times [2022-11-20 12:42:22,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:42:22,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118620196] [2022-11-20 12:42:22,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:42:22,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:42:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:42:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:42:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:42:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:42:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:42:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:42:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:42:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:42:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:42:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:42:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-20 12:42:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:42:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:42:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:42:23,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:42:23,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118620196] [2022-11-20 12:42:23,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118620196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:42:23,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:42:23,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:42:23,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757787074] [2022-11-20 12:42:23,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:42:23,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:42:23,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:42:23,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:42:23,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:42:23,303 INFO L87 Difference]: Start difference. First operand 1744 states and 2572 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:42:27,593 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 [] [2022-11-20 12:42:31,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:33,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:35,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:39,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:41,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:43,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:46,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:48,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:50,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:52,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:54,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:55,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:57,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:42:59,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:01,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:09,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:15,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:15,893 INFO L93 Difference]: Finished difference Result 5784 states and 9028 transitions. [2022-11-20 12:43:15,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:43:15,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2022-11-20 12:43:15,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:43:15,924 INFO L225 Difference]: With dead ends: 5784 [2022-11-20 12:43:15,924 INFO L226 Difference]: Without dead ends: 4069 [2022-11-20 12:43:15,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:43:15,937 INFO L413 NwaCegarLoop]: 2422 mSDtfsCounter, 4443 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 5189 mSolverCounterSat, 3061 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4867 SdHoareTripleChecker+Valid, 7612 SdHoareTripleChecker+Invalid, 8258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3061 IncrementalHoareTripleChecker+Valid, 5189 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:43:15,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4867 Valid, 7612 Invalid, 8258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3061 Valid, 5189 Invalid, 8 Unknown, 0 Unchecked, 51.9s Time] [2022-11-20 12:43:15,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2022-11-20 12:43:16,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 3259. [2022-11-20 12:43:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 2235 states have (on average 1.403579418344519) internal successors, (3137), 2317 states have internal predecessors, (3137), 842 states have call successors, (842), 180 states have call predecessors, (842), 181 states have return successors, (885), 817 states have call predecessors, (885), 835 states have call successors, (885) [2022-11-20 12:43:16,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 4864 transitions. [2022-11-20 12:43:16,168 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 4864 transitions. Word has length 138 [2022-11-20 12:43:16,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:43:16,169 INFO L495 AbstractCegarLoop]: Abstraction has 3259 states and 4864 transitions. [2022-11-20 12:43:16,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:43:16,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 4864 transitions. [2022-11-20 12:43:16,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-20 12:43:16,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:43:16,175 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:43:16,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:43:16,175 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:43:16,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:16,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1733522333, now seen corresponding path program 1 times [2022-11-20 12:43:16,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:16,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994785214] [2022-11-20 12:43:16,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:16,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:43:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:43:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:43:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:43:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:43:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:43:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:43:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:43:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:43:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 12:43:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:43:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:16,737 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:43:16,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:16,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994785214] [2022-11-20 12:43:16,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994785214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:43:16,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:43:16,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:43:16,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520115311] [2022-11-20 12:43:16,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:43:16,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:43:16,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:16,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:43:16,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:43:16,742 INFO L87 Difference]: Start difference. First operand 3259 states and 4864 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:43:22,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:25,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:30,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:36,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:39,018 INFO L93 Difference]: Finished difference Result 4017 states and 6233 transitions. [2022-11-20 12:43:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:43:39,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2022-11-20 12:43:39,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:43:39,041 INFO L225 Difference]: With dead ends: 4017 [2022-11-20 12:43:39,042 INFO L226 Difference]: Without dead ends: 4013 [2022-11-20 12:43:39,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:43:39,044 INFO L413 NwaCegarLoop]: 2116 mSDtfsCounter, 3550 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 1748 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3828 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1748 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:43:39,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3828 Valid, 4168 Invalid, 3852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1748 Valid, 2100 Invalid, 4 Unknown, 0 Unchecked, 21.9s Time] [2022-11-20 12:43:39,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4013 states. [2022-11-20 12:43:39,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4013 to 3402. [2022-11-20 12:43:39,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 2336 states have (on average 1.396832191780822) internal successors, (3263), 2420 states have internal predecessors, (3263), 860 states have call successors, (860), 204 states have call predecessors, (860), 205 states have return successors, (905), 837 states have call predecessors, (905), 855 states have call successors, (905) [2022-11-20 12:43:39,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 5028 transitions. [2022-11-20 12:43:39,287 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 5028 transitions. Word has length 140 [2022-11-20 12:43:39,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:43:39,289 INFO L495 AbstractCegarLoop]: Abstraction has 3402 states and 5028 transitions. [2022-11-20 12:43:39,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:43:39,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 5028 transitions. [2022-11-20 12:43:39,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-20 12:43:39,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:43:39,295 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:43:39,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:43:39,296 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:43:39,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:39,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2096129828, now seen corresponding path program 1 times [2022-11-20 12:43:39,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:39,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822666356] [2022-11-20 12:43:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:39,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:43:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:43:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:43:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:43:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:43:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:43:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:43:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:43:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:43:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:43:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:43:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 12:43:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:43:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:39,827 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:43:39,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:39,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822666356] [2022-11-20 12:43:39,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822666356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:43:39,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:43:39,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:43:39,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393116520] [2022-11-20 12:43:39,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:43:39,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:43:39,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:39,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:43:39,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:43:39,830 INFO L87 Difference]: Start difference. First operand 3402 states and 5028 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:43:41,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:44,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:46,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:47,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:50,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:52,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:56,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:43:59,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:05,238 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 [] [2022-11-20 12:44:08,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:08,556 INFO L93 Difference]: Finished difference Result 4088 states and 6313 transitions. [2022-11-20 12:44:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:44:08,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 141 [2022-11-20 12:44:08,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:08,618 INFO L225 Difference]: With dead ends: 4088 [2022-11-20 12:44:08,618 INFO L226 Difference]: Without dead ends: 4085 [2022-11-20 12:44:08,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:44:08,621 INFO L413 NwaCegarLoop]: 2108 mSDtfsCounter, 3587 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 1686 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 4132 SdHoareTripleChecker+Invalid, 3778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1686 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:08,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3915 Valid, 4132 Invalid, 3778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1686 Valid, 2087 Invalid, 5 Unknown, 0 Unchecked, 28.3s Time] [2022-11-20 12:44:08,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2022-11-20 12:44:08,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 3474. [2022-11-20 12:44:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 2387 states have (on average 1.3937997486384583) internal successors, (3327), 2472 states have internal predecessors, (3327), 869 states have call successors, (869), 216 states have call predecessors, (869), 217 states have return successors, (915), 847 states have call predecessors, (915), 865 states have call successors, (915) [2022-11-20 12:44:08,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 5111 transitions. [2022-11-20 12:44:08,929 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 5111 transitions. Word has length 141 [2022-11-20 12:44:08,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:08,930 INFO L495 AbstractCegarLoop]: Abstraction has 3474 states and 5111 transitions. [2022-11-20 12:44:08,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:44:08,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 5111 transitions. [2022-11-20 12:44:08,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-20 12:44:08,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:08,936 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:44:08,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:44:08,937 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:08,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:08,937 INFO L85 PathProgramCache]: Analyzing trace with hash -556257664, now seen corresponding path program 1 times [2022-11-20 12:44:08,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:08,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671755150] [2022-11-20 12:44:08,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:08,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:44:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:44:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:44:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:44:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:44:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:44:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:44:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:44:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 12:44:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:44:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:09,432 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:44:09,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:09,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671755150] [2022-11-20 12:44:09,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671755150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:09,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:09,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:44:09,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577621982] [2022-11-20 12:44:09,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:09,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:44:09,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:09,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:44:09,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:44:09,434 INFO L87 Difference]: Start difference. First operand 3474 states and 5111 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:44:12,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:14,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:15,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:17,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:20,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:22,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:26,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:28,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:30,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:32,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:37,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:39,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:42,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:46,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:48,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:51,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:53,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:44:56,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:44:56,411 INFO L93 Difference]: Finished difference Result 7412 states and 11406 transitions. [2022-11-20 12:44:56,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:44:56,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 142 [2022-11-20 12:44:56,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:44:56,453 INFO L225 Difference]: With dead ends: 7412 [2022-11-20 12:44:56,453 INFO L226 Difference]: Without dead ends: 7409 [2022-11-20 12:44:56,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:44:56,458 INFO L413 NwaCegarLoop]: 2384 mSDtfsCounter, 4482 mSDsluCounter, 3445 mSDsCounter, 0 mSdLazyCounter, 3387 mSolverCounterSat, 2681 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4822 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 6077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2681 IncrementalHoareTripleChecker+Valid, 3387 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:44:56,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4822 Valid, 5829 Invalid, 6077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2681 Valid, 3387 Invalid, 9 Unknown, 0 Unchecked, 46.3s Time] [2022-11-20 12:44:56,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7409 states. [2022-11-20 12:44:56,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7409 to 6467. [2022-11-20 12:44:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 4407 states have (on average 1.392330383480826) internal successors, (6136), 4575 states have internal predecessors, (6136), 1624 states have call successors, (1624), 410 states have call predecessors, (1624), 435 states have return successors, (1851), 1601 states have call predecessors, (1851), 1621 states have call successors, (1851) [2022-11-20 12:44:56,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 9611 transitions. [2022-11-20 12:44:56,980 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 9611 transitions. Word has length 142 [2022-11-20 12:44:56,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:44:56,980 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 9611 transitions. [2022-11-20 12:44:56,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:44:56,981 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 9611 transitions. [2022-11-20 12:44:56,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 12:44:56,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:44:56,986 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:44:56,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:44:56,986 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:44:56,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:44:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash -64855969, now seen corresponding path program 1 times [2022-11-20 12:44:56,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:44:56,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562979444] [2022-11-20 12:44:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:44:56,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:44:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:44:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:44:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:44:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:44:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:44:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:44:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:44:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:44:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:44:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:44:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:44:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 12:44:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 12:44:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:44:57,576 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:44:57,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:44:57,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562979444] [2022-11-20 12:44:57,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562979444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:44:57,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:44:57,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:44:57,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92486104] [2022-11-20 12:44:57,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:44:57,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:44:57,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:44:57,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:44:57,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:44:57,579 INFO L87 Difference]: Start difference. First operand 6467 states and 9611 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:45:02,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:04,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:07,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:09,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:12,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:17,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:23,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:24,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:26,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:26,989 INFO L93 Difference]: Finished difference Result 7398 states and 11385 transitions. [2022-11-20 12:45:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:45:26,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 143 [2022-11-20 12:45:26,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:27,031 INFO L225 Difference]: With dead ends: 7398 [2022-11-20 12:45:27,031 INFO L226 Difference]: Without dead ends: 7388 [2022-11-20 12:45:27,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:45:27,039 INFO L413 NwaCegarLoop]: 2117 mSDtfsCounter, 3558 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 1678 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 4143 SdHoareTripleChecker+Invalid, 3771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:27,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3878 Valid, 4143 Invalid, 3771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1678 Valid, 2088 Invalid, 5 Unknown, 0 Unchecked, 28.8s Time] [2022-11-20 12:45:27,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7388 states. [2022-11-20 12:45:27,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7388 to 6459. [2022-11-20 12:45:27,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6459 states, 4400 states have (on average 1.3925) internal successors, (6127), 4568 states have internal predecessors, (6127), 1623 states have call successors, (1623), 410 states have call predecessors, (1623), 435 states have return successors, (1850), 1600 states have call predecessors, (1850), 1620 states have call successors, (1850) [2022-11-20 12:45:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6459 states to 6459 states and 9600 transitions. [2022-11-20 12:45:27,678 INFO L78 Accepts]: Start accepts. Automaton has 6459 states and 9600 transitions. Word has length 143 [2022-11-20 12:45:27,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:27,679 INFO L495 AbstractCegarLoop]: Abstraction has 6459 states and 9600 transitions. [2022-11-20 12:45:27,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:45:27,679 INFO L276 IsEmpty]: Start isEmpty. Operand 6459 states and 9600 transitions. [2022-11-20 12:45:27,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 12:45:27,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:27,684 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:45:27,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:45:27,684 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:27,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:27,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1410064585, now seen corresponding path program 1 times [2022-11-20 12:45:27,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:45:27,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277980459] [2022-11-20 12:45:27,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:27,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:45:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:45:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:45:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:45:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:45:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:45:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:45:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:45:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:45:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:45:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:45:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:45:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:45:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:45:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:45:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:45:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:45:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:45:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:45:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:45:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 12:45:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-20 12:45:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:45:28,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:45:28,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277980459] [2022-11-20 12:45:28,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277980459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:28,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:28,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:45:28,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219659395] [2022-11-20 12:45:28,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:28,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:45:28,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:45:28,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:45:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:45:28,251 INFO L87 Difference]: Start difference. First operand 6459 states and 9600 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:45:30,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:33,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:36,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:38,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:40,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:44,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:46,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:51,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:52,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:45:55,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:01,979 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 [] [2022-11-20 12:46:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:07,420 INFO L93 Difference]: Finished difference Result 9636 states and 16442 transitions. [2022-11-20 12:46:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:46:07,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 149 [2022-11-20 12:46:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:07,469 INFO L225 Difference]: With dead ends: 9636 [2022-11-20 12:46:07,470 INFO L226 Difference]: Without dead ends: 9633 [2022-11-20 12:46:07,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:46:07,480 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 2922 mSDsluCounter, 4297 mSDsCounter, 0 mSdLazyCounter, 4571 mSolverCounterSat, 2658 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3014 SdHoareTripleChecker+Valid, 6269 SdHoareTripleChecker+Invalid, 7236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2658 IncrementalHoareTripleChecker+Valid, 4571 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:07,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3014 Valid, 6269 Invalid, 7236 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2658 Valid, 4571 Invalid, 7 Unknown, 0 Unchecked, 38.2s Time] [2022-11-20 12:46:07,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9633 states. [2022-11-20 12:46:08,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9633 to 6459. [2022-11-20 12:46:08,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6459 states, 4400 states have (on average 1.391590909090909) internal successors, (6123), 4568 states have internal predecessors, (6123), 1623 states have call successors, (1623), 410 states have call predecessors, (1623), 435 states have return successors, (1850), 1600 states have call predecessors, (1850), 1620 states have call successors, (1850) [2022-11-20 12:46:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6459 states to 6459 states and 9596 transitions. [2022-11-20 12:46:08,257 INFO L78 Accepts]: Start accepts. Automaton has 6459 states and 9596 transitions. Word has length 149 [2022-11-20 12:46:08,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:08,261 INFO L495 AbstractCegarLoop]: Abstraction has 6459 states and 9596 transitions. [2022-11-20 12:46:08,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 12:46:08,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6459 states and 9596 transitions. [2022-11-20 12:46:08,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-20 12:46:08,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:08,271 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2022-11-20 12:46:08,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:46:08,272 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:46:08,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:08,272 INFO L85 PathProgramCache]: Analyzing trace with hash -133689067, now seen corresponding path program 1 times [2022-11-20 12:46:08,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:46:08,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408279490] [2022-11-20 12:46:08,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:08,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:46:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:46:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:46:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:46:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:46:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:46:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:46:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:46:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:46:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:46:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:46:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-20 12:46:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 12:46:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-20 12:46:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-20 12:46:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-11-20 12:46:08,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:46:08,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408279490] [2022-11-20 12:46:08,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408279490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:08,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:08,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:46:08,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845371211] [2022-11-20 12:46:08,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:08,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:46:08,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:46:08,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:46:08,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:46:08,868 INFO L87 Difference]: Start difference. First operand 6459 states and 9596 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (23), 7 states have call predecessors, (23), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:46:12,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:14,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:15,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:18,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:22,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:24,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:26,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:27,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:33,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:34,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:37,917 INFO L93 Difference]: Finished difference Result 7731 states and 12093 transitions. [2022-11-20 12:46:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:46:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (23), 7 states have call predecessors, (23), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 174 [2022-11-20 12:46:37,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:37,954 INFO L225 Difference]: With dead ends: 7731 [2022-11-20 12:46:37,955 INFO L226 Difference]: Without dead ends: 7728 [2022-11-20 12:46:37,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:46:37,963 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 3024 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 4150 mSolverCounterSat, 2575 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 6728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2575 IncrementalHoareTripleChecker+Valid, 4150 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:37,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3327 Valid, 3866 Invalid, 6728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2575 Valid, 4150 Invalid, 3 Unknown, 0 Unchecked, 28.3s Time] [2022-11-20 12:46:37,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7728 states. [2022-11-20 12:46:38,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7728 to 6472. [2022-11-20 12:46:38,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6472 states, 4392 states have (on average 1.3854735883424407) internal successors, (6085), 4555 states have internal predecessors, (6085), 1626 states have call successors, (1626), 410 states have call predecessors, (1626), 453 states have return successors, (1834), 1632 states have call predecessors, (1834), 1624 states have call successors, (1834) [2022-11-20 12:46:38,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6472 states to 6472 states and 9545 transitions. [2022-11-20 12:46:38,684 INFO L78 Accepts]: Start accepts. Automaton has 6472 states and 9545 transitions. Word has length 174 [2022-11-20 12:46:38,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:38,685 INFO L495 AbstractCegarLoop]: Abstraction has 6472 states and 9545 transitions. [2022-11-20 12:46:38,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (23), 7 states have call predecessors, (23), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:46:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 6472 states and 9545 transitions. [2022-11-20 12:46:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-20 12:46:38,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:38,702 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:46:38,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:46:38,702 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:46:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1742487794, now seen corresponding path program 1 times [2022-11-20 12:46:38,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:46:38,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538994625] [2022-11-20 12:46:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:38,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:46:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:46:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:46:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:46:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:46:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:46:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:46:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:46:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:46:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:46:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:46:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-20 12:46:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:46:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-20 12:46:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-20 12:46:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:46:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:46:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:39,776 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:46:39,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:46:39,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538994625] [2022-11-20 12:46:39,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538994625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:39,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:39,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:46:39,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053313431] [2022-11-20 12:46:39,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:39,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:46:39,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:46:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:46:39,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:46:39,780 INFO L87 Difference]: Start difference. First operand 6472 states and 9545 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (24), 9 states have call predecessors, (24), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:46:43,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:44,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:46,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:50,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:54,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:56,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:46:58,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:00,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:07,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:08,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:10,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:16,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:27,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:29,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:30,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:34,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:36,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:47:53,238 INFO L93 Difference]: Finished difference Result 19781 states and 36372 transitions. [2022-11-20 12:47:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 12:47:53,239 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (24), 9 states have call predecessors, (24), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 192 [2022-11-20 12:47:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:47:53,333 INFO L225 Difference]: With dead ends: 19781 [2022-11-20 12:47:53,333 INFO L226 Difference]: Without dead ends: 13338 [2022-11-20 12:47:53,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=171, Invalid=641, Unknown=0, NotChecked=0, Total=812 [2022-11-20 12:47:53,390 INFO L413 NwaCegarLoop]: 2062 mSDtfsCounter, 4295 mSDsluCounter, 11834 mSDsCounter, 0 mSdLazyCounter, 11647 mSolverCounterSat, 4156 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4427 SdHoareTripleChecker+Valid, 13896 SdHoareTripleChecker+Invalid, 15814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4156 IncrementalHoareTripleChecker+Valid, 11647 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:47:53,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4427 Valid, 13896 Invalid, 15814 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4156 Valid, 11647 Invalid, 11 Unknown, 0 Unchecked, 70.9s Time] [2022-11-20 12:47:53,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13338 states. [2022-11-20 12:47:54,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13338 to 6480. [2022-11-20 12:47:54,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6480 states, 4400 states have (on average 1.3847727272727273) internal successors, (6093), 4559 states have internal predecessors, (6093), 1626 states have call successors, (1626), 410 states have call predecessors, (1626), 453 states have return successors, (1834), 1636 states have call predecessors, (1834), 1624 states have call successors, (1834) [2022-11-20 12:47:54,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6480 states to 6480 states and 9553 transitions. [2022-11-20 12:47:54,944 INFO L78 Accepts]: Start accepts. Automaton has 6480 states and 9553 transitions. Word has length 192 [2022-11-20 12:47:54,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:47:54,945 INFO L495 AbstractCegarLoop]: Abstraction has 6480 states and 9553 transitions. [2022-11-20 12:47:54,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (24), 9 states have call predecessors, (24), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:47:54,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6480 states and 9553 transitions. [2022-11-20 12:47:54,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-20 12:47:54,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:47:54,960 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:54,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:47:54,960 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:47:54,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:54,961 INFO L85 PathProgramCache]: Analyzing trace with hash -495157141, now seen corresponding path program 1 times [2022-11-20 12:47:54,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:54,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548397746] [2022-11-20 12:47:54,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:54,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:47:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:47:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:47:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:47:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:47:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:47:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:47:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:47:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:47:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:47:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:47:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:47:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:47:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:47:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:47:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:47:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:47:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:47:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:47:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-20 12:47:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 12:47:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-20 12:47:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-20 12:47:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-20 12:47:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-20 12:47:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-20 12:47:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-20 12:47:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:47:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:47:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:47:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:47:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-11-20 12:47:56,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:56,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548397746] [2022-11-20 12:47:56,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548397746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:56,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:56,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:47:56,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835142020] [2022-11-20 12:47:56,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:56,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:47:56,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:56,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:47:56,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:47:56,485 INFO L87 Difference]: Start difference. First operand 6480 states and 9553 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 10 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:48:02,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:04,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:06,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:08,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:10,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:11,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:13,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:14,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:19,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:21,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:23,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:25,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:34,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:38,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:40,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:43,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:45,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:47,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:54,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:56,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:58,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:00,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:02,689 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 [] [2022-11-20 12:49:29,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:29,401 INFO L93 Difference]: Finished difference Result 19813 states and 36464 transitions. [2022-11-20 12:49:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 12:49:29,402 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 10 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 217 [2022-11-20 12:49:29,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:29,490 INFO L225 Difference]: With dead ends: 19813 [2022-11-20 12:49:29,491 INFO L226 Difference]: Without dead ends: 13362 [2022-11-20 12:49:29,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2022-11-20 12:49:29,538 INFO L413 NwaCegarLoop]: 1997 mSDtfsCounter, 3947 mSDsluCounter, 9463 mSDsCounter, 0 mSdLazyCounter, 11128 mSolverCounterSat, 2315 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 11460 SdHoareTripleChecker+Invalid, 13459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2315 IncrementalHoareTripleChecker+Valid, 11128 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:29,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 11460 Invalid, 13459 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2315 Valid, 11128 Invalid, 16 Unknown, 0 Unchecked, 90.2s Time] [2022-11-20 12:49:29,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13362 states. [2022-11-20 12:49:31,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13362 to 6704. [2022-11-20 12:49:31,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6704 states, 4556 states have (on average 1.386523266022827) internal successors, (6317), 4727 states have internal predecessors, (6317), 1674 states have call successors, (1674), 410 states have call predecessors, (1674), 473 states have return successors, (2078), 1692 states have call predecessors, (2078), 1672 states have call successors, (2078) [2022-11-20 12:49:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6704 states to 6704 states and 10069 transitions. [2022-11-20 12:49:31,213 INFO L78 Accepts]: Start accepts. Automaton has 6704 states and 10069 transitions. Word has length 217 [2022-11-20 12:49:31,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:31,214 INFO L495 AbstractCegarLoop]: Abstraction has 6704 states and 10069 transitions. [2022-11-20 12:49:31,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 10 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:49:31,215 INFO L276 IsEmpty]: Start isEmpty. Operand 6704 states and 10069 transitions. [2022-11-20 12:49:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-20 12:49:31,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:31,229 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:31,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:49:31,230 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:49:31,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:31,231 INFO L85 PathProgramCache]: Analyzing trace with hash -635824199, now seen corresponding path program 1 times [2022-11-20 12:49:31,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:31,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301522482] [2022-11-20 12:49:31,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:31,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:49:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:49:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:49:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:49:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:49:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:49:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:49:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:49:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:49:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:49:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:49:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:49:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:49:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:49:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:49:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:49:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:49:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:49:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:49:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:31,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-20 12:49:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-20 12:49:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-20 12:49:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-20 12:49:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-20 12:49:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:49:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:32,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:49:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:49:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:49:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:32,156 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:49:32,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:32,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301522482] [2022-11-20 12:49:32,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301522482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:32,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:32,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:49:32,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138215438] [2022-11-20 12:49:32,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:32,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:49:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:32,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:49:32,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:49:32,160 INFO L87 Difference]: Start difference. First operand 6704 states and 10069 transitions. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (24), 9 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 12:49:34,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:36,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:37,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:41,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:43,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:45,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:47,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:49,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:53,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:55,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:57,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:02,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:05,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:08,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:10,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:12,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:16,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:37,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:37,374 INFO L93 Difference]: Finished difference Result 20725 states and 38766 transitions. [2022-11-20 12:50:37,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 12:50:37,375 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (24), 9 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 203 [2022-11-20 12:50:37,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:37,462 INFO L225 Difference]: With dead ends: 20725 [2022-11-20 12:50:37,462 INFO L226 Difference]: Without dead ends: 14050 [2022-11-20 12:50:37,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-11-20 12:50:37,507 INFO L413 NwaCegarLoop]: 2148 mSDtfsCounter, 4922 mSDsluCounter, 7664 mSDsCounter, 0 mSdLazyCounter, 8189 mSolverCounterSat, 5096 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5072 SdHoareTripleChecker+Valid, 9812 SdHoareTripleChecker+Invalid, 13295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5096 IncrementalHoareTripleChecker+Valid, 8189 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:37,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5072 Valid, 9812 Invalid, 13295 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5096 Valid, 8189 Invalid, 10 Unknown, 0 Unchecked, 62.2s Time] [2022-11-20 12:50:37,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14050 states. [2022-11-20 12:50:39,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14050 to 9134. [2022-11-20 12:50:39,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9134 states, 6230 states have (on average 1.4008025682182985) internal successors, (8727), 6443 states have internal predecessors, (8727), 2253 states have call successors, (2253), 410 states have call predecessors, (2253), 650 states have return successors, (4618), 2418 states have call predecessors, (4618), 2251 states have call successors, (4618) [2022-11-20 12:50:39,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9134 states to 9134 states and 15598 transitions. [2022-11-20 12:50:39,348 INFO L78 Accepts]: Start accepts. Automaton has 9134 states and 15598 transitions. Word has length 203 [2022-11-20 12:50:39,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:39,348 INFO L495 AbstractCegarLoop]: Abstraction has 9134 states and 15598 transitions. [2022-11-20 12:50:39,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (24), 9 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 12:50:39,349 INFO L276 IsEmpty]: Start isEmpty. Operand 9134 states and 15598 transitions. [2022-11-20 12:50:39,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-20 12:50:39,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:39,362 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:39,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:50:39,362 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:50:39,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:39,363 INFO L85 PathProgramCache]: Analyzing trace with hash -738572264, now seen corresponding path program 1 times [2022-11-20 12:50:39,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:39,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311432600] [2022-11-20 12:50:39,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:39,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:50:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:50:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:50:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:50:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:50:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:50:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:50:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:50:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:50:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-20 12:50:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-20 12:50:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-20 12:50:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-20 12:50:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-20 12:50:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-20 12:50:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:41,888 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-11-20 12:50:41,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:50:41,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311432600] [2022-11-20 12:50:41,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311432600] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:50:41,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270224833] [2022-11-20 12:50:41,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:41,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:50:41,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:50:41,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:50:41,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:50:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:43,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:50:43,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:50:43,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:43,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270224833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:43,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:50:43,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2022-11-20 12:50:43,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111648206] [2022-11-20 12:50:43,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:43,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:50:43,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:50:43,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:50:43,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:50:43,490 INFO L87 Difference]: Start difference. First operand 9134 states and 15598 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:50:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:44,964 INFO L93 Difference]: Finished difference Result 18101 states and 31737 transitions. [2022-11-20 12:50:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:50:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 220 [2022-11-20 12:50:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:45,011 INFO L225 Difference]: With dead ends: 18101 [2022-11-20 12:50:45,011 INFO L226 Difference]: Without dead ends: 8996 [2022-11-20 12:50:45,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:50:45,112 INFO L413 NwaCegarLoop]: 2498 mSDtfsCounter, 9 mSDsluCounter, 7464 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9962 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:45,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9962 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:50:45,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8996 states. [2022-11-20 12:50:46,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8996 to 8298. [2022-11-20 12:50:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8298 states, 5632 states have (on average 1.3897372159090908) internal successors, (7827), 5827 states have internal predecessors, (7827), 2045 states have call successors, (2045), 410 states have call predecessors, (2045), 620 states have return successors, (3384), 2202 states have call predecessors, (3384), 2043 states have call successors, (3384) [2022-11-20 12:50:46,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8298 states to 8298 states and 13256 transitions. [2022-11-20 12:50:46,567 INFO L78 Accepts]: Start accepts. Automaton has 8298 states and 13256 transitions. Word has length 220 [2022-11-20 12:50:46,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:46,568 INFO L495 AbstractCegarLoop]: Abstraction has 8298 states and 13256 transitions. [2022-11-20 12:50:46,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:50:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 8298 states and 13256 transitions. [2022-11-20 12:50:46,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 12:50:46,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:46,581 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:46,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 12:50:46,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e85c61-0b72-4bc4-b479-a74407f5fd4f/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:50:46,794 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:50:46,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:46,795 INFO L85 PathProgramCache]: Analyzing trace with hash -983415781, now seen corresponding path program 1 times [2022-11-20 12:50:46,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:46,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060475245] [2022-11-20 12:50:46,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:46,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:50:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:50:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:50:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:50:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:50:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:50:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:50:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:50:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:50:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-20 12:50:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-20 12:50:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:47,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-20 12:50:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:48,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-20 12:50:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:48,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:48,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:48,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:50:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:50:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:50:48,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:50:48,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060475245] [2022-11-20 12:50:48,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060475245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:48,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:48,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:50:48,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816561826] [2022-11-20 12:50:48,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:48,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:50:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:50:48,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:50:48,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:50:48,289 INFO L87 Difference]: Start difference. First operand 8298 states and 13256 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (23), 9 states have call predecessors, (23), 2 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 12:50:54,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:56,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:57,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:00,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:06,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:10,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:12,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:16,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:21,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:22,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:25,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:27,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:50,061 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 [] [2022-11-20 12:52:19,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:52:19,955 INFO L93 Difference]: Finished difference Result 39724 states and 87008 transitions. [2022-11-20 12:52:19,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 12:52:19,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (23), 9 states have call predecessors, (23), 2 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2022-11-20 12:52:19,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:52:20,131 INFO L225 Difference]: With dead ends: 39724 [2022-11-20 12:52:20,131 INFO L226 Difference]: Without dead ends: 31455 [2022-11-20 12:52:20,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=1027, Unknown=0, NotChecked=0, Total=1332 [2022-11-20 12:52:20,196 INFO L413 NwaCegarLoop]: 3633 mSDtfsCounter, 12266 mSDsluCounter, 13453 mSDsCounter, 0 mSdLazyCounter, 20724 mSolverCounterSat, 13608 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12810 SdHoareTripleChecker+Valid, 17086 SdHoareTripleChecker+Invalid, 34339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 13608 IncrementalHoareTripleChecker+Valid, 20724 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:52:20,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12810 Valid, 17086 Invalid, 34339 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [13608 Valid, 20724 Invalid, 7 Unknown, 0 Unchecked, 84.7s Time] [2022-11-20 12:52:20,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31455 states. [2022-11-20 12:52:24,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31455 to 21740. [2022-11-20 12:52:24,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21740 states, 14606 states have (on average 1.3788169245515542) internal successors, (20139), 15071 states have internal predecessors, (20139), 5148 states have call successors, (5148), 774 states have call predecessors, (5148), 1985 states have return successors, (16894), 6300 states have call predecessors, (16894), 5146 states have call successors, (16894) [2022-11-20 12:52:24,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21740 states to 21740 states and 42181 transitions. [2022-11-20 12:52:24,452 INFO L78 Accepts]: Start accepts. Automaton has 21740 states and 42181 transitions. Word has length 183 [2022-11-20 12:52:24,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:52:24,452 INFO L495 AbstractCegarLoop]: Abstraction has 21740 states and 42181 transitions. [2022-11-20 12:52:24,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (23), 9 states have call predecessors, (23), 2 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 12:52:24,453 INFO L276 IsEmpty]: Start isEmpty. Operand 21740 states and 42181 transitions. [2022-11-20 12:52:24,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-20 12:52:24,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:52:24,480 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:52:24,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:52:24,480 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:52:24,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:52:24,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1415246411, now seen corresponding path program 1 times [2022-11-20 12:52:24,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:52:24,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858371967] [2022-11-20 12:52:24,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:52:24,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:52:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:52:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:52:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:52:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-20 12:52:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:52:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:52:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:52:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:52:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:52:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:52:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:52:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:52:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:52:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:52:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:24,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:52:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 12:52:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 12:52:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 12:52:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 12:52:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-20 12:52:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-20 12:52:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-20 12:52:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-20 12:52:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:52:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:52:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:52:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 12:52:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:25,176 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-20 12:52:25,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:52:25,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858371967] [2022-11-20 12:52:25,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858371967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:52:25,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:52:25,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:52:25,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005602155] [2022-11-20 12:52:25,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:52:25,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:52:25,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:52:25,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:52:25,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:52:25,180 INFO L87 Difference]: Start difference. First operand 21740 states and 42181 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (23), 9 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:52:28,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:30,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:33,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:34,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:39,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:41,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:45,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:46,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:49,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:00,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:02,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:14,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:53:14,710 INFO L93 Difference]: Finished difference Result 33518 states and 79028 transitions. [2022-11-20 12:53:14,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 12:53:14,710 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (23), 9 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 184 [2022-11-20 12:53:14,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:53:14,722 INFO L225 Difference]: With dead ends: 33518 [2022-11-20 12:53:14,722 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:53:14,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2022-11-20 12:53:14,956 INFO L413 NwaCegarLoop]: 1973 mSDtfsCounter, 4405 mSDsluCounter, 5682 mSDsCounter, 0 mSdLazyCounter, 6714 mSolverCounterSat, 3794 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4479 SdHoareTripleChecker+Valid, 7655 SdHoareTripleChecker+Invalid, 10514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3794 IncrementalHoareTripleChecker+Valid, 6714 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:53:14,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4479 Valid, 7655 Invalid, 10514 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3794 Valid, 6714 Invalid, 6 Unknown, 0 Unchecked, 43.4s Time] [2022-11-20 12:53:14,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:53:14,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:53:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:53:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:53:14,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2022-11-20 12:53:14,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:53:14,961 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:53:14,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (23), 9 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:53:14,961 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:53:14,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:53:14,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:53:14,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:53:14,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.