./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8 --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 a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 --- 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-e04fb08 [2022-11-16 12:52:28,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:52:28,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:52:28,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:52:28,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:52:28,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:52:28,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:52:28,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:52:28,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:52:28,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:52:28,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:52:28,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:52:28,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:52:28,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:52:28,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:52:28,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:52:28,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:52:28,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:52:28,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:52:28,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:52:28,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:52:28,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:52:28,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:52:28,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:52:28,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:52:28,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:52:28,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:52:28,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:52:28,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:52:28,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:52:28,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:52:28,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:52:28,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:52:28,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:52:28,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:52:28,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:52:28,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:52:28,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:52:28,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:52:28,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:52:28,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:52:28,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:52:28,738 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:52:28,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:52:28,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:52:28,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:52:28,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:52:28,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:52:28,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:52:28,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:52:28,742 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:52:28,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:52:28,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:52:28,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:52:28,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:52:28,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:52:28,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:52:28,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:52:28,745 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:52:28,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:52:28,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:52:28,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:52:28,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:52:28,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:52:28,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:52:28,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:52:28,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:52:28,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:52:28,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:52:28,750 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:52:28,750 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:52:28,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:52:28,751 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_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2022-11-16 12:52:29,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:52:29,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:52:29,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:52:29,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:52:29,128 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:52:29,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-11-16 12:52:29,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/data/cbedbc446/32cadabd23df44689d1feb66673f4966/FLAG13c0ae664 [2022-11-16 12:52:30,245 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:52:30,246 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-11-16 12:52:30,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/data/cbedbc446/32cadabd23df44689d1feb66673f4966/FLAG13c0ae664 [2022-11-16 12:52:30,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/data/cbedbc446/32cadabd23df44689d1feb66673f4966 [2022-11-16 12:52:30,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:52:30,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:52:30,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:52:30,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:52:30,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:52:30,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:52:30" (1/1) ... [2022-11-16 12:52:30,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea85c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:30, skipping insertion in model container [2022-11-16 12:52:30,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:52:30" (1/1) ... [2022-11-16 12:52:30,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:52:30,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:52:32,059 WARN L229 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_0b2dd31e-740f-4a1f-8649-2ca10e633d87/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2022-11-16 12:52:32,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:52:32,343 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:52:32,709 WARN L229 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_0b2dd31e-740f-4a1f-8649-2ca10e633d87/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2022-11-16 12:52:32,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:52:32,925 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:52:32,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32 WrapperNode [2022-11-16 12:52:32,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:52:32,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:52:32,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:52:32,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:52:32,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,231 INFO L138 Inliner]: procedures = 184, calls = 2049, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5226 [2022-11-16 12:52:33,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:52:33,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:52:33,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:52:33,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:52:33,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,458 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:52:33,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:52:33,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:52:33,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:52:33,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (1/1) ... [2022-11-16 12:52:33,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:52:33,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:33,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:33,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b2dd31e-740f-4a1f-8649-2ca10e633d87/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:52:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2022-11-16 12:52:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2022-11-16 12:52:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 12:52:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 12:52:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2022-11-16 12:52:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2022-11-16 12:52:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-11-16 12:52:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-11-16 12:52:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-11-16 12:52:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-11-16 12:52:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-11-16 12:52:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-11-16 12:52:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2022-11-16 12:52:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2022-11-16 12:52:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:52:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2022-11-16 12:52:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2022-11-16 12:52:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-11-16 12:52:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-11-16 12:52:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-16 12:52:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-16 12:52:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-11-16 12:52:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-11-16 12:52:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2022-11-16 12:52:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2022-11-16 12:52:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2022-11-16 12:52:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2022-11-16 12:52:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:52:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:52:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2022-11-16 12:52:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2022-11-16 12:52:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2022-11-16 12:52:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2022-11-16 12:52:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2022-11-16 12:52:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2022-11-16 12:52:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-11-16 12:52:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-11-16 12:52:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2022-11-16 12:52:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2022-11-16 12:52:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2022-11-16 12:52:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2022-11-16 12:52:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:52:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 12:52:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 12:52:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:52:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:52:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-11-16 12:52:33,630 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-11-16 12:52:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2022-11-16 12:52:33,630 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2022-11-16 12:52:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:52:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:52:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2022-11-16 12:52:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2022-11-16 12:52:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2022-11-16 12:52:33,632 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2022-11-16 12:52:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2022-11-16 12:52:33,633 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2022-11-16 12:52:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2022-11-16 12:52:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2022-11-16 12:52:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:52:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 12:52:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 12:52:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-11-16 12:52:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-11-16 12:52:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:52:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:52:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2022-11-16 12:52:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2022-11-16 12:52:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-11-16 12:52:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-11-16 12:52:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:52:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-11-16 12:52:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-11-16 12:52:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2022-11-16 12:52:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2022-11-16 12:52:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-11-16 12:52:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-11-16 12:52:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2022-11-16 12:52:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2022-11-16 12:52:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2022-11-16 12:52:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2022-11-16 12:52:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2022-11-16 12:52:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2022-11-16 12:52:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:52:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-11-16 12:52:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-11-16 12:52:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:52:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2022-11-16 12:52:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2022-11-16 12:52:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-16 12:52:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-16 12:52:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:52:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2022-11-16 12:52:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2022-11-16 12:52:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2022-11-16 12:52:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2022-11-16 12:52:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2022-11-16 12:52:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2022-11-16 12:52:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-16 12:52:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-16 12:52:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2022-11-16 12:52:33,645 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2022-11-16 12:52:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 12:52:33,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 12:52:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2022-11-16 12:52:33,646 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2022-11-16 12:52:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:52:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2022-11-16 12:52:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2022-11-16 12:52:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:52:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:52:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 12:52:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 12:52:34,596 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:52:34,603 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:52:40,983 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:52:41,000 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:52:41,000 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:52:41,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:52:41 BoogieIcfgContainer [2022-11-16 12:52:41,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:52:41,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:52:41,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:52:41,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:52:41,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:52:30" (1/3) ... [2022-11-16 12:52:41,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c349e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:52:41, skipping insertion in model container [2022-11-16 12:52:41,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:32" (2/3) ... [2022-11-16 12:52:41,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c349e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:52:41, skipping insertion in model container [2022-11-16 12:52:41,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:52:41" (3/3) ... [2022-11-16 12:52:41,020 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-11-16 12:52:41,044 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:52:41,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:52:41,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:52:41,220 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;@49457f07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:52:41,221 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:52:41,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 1302 states, 972 states have (on average 1.48559670781893) internal successors, (1444), 986 states have internal predecessors, (1444), 277 states have call successors, (277), 51 states have call predecessors, (277), 51 states have return successors, (277), 275 states have call predecessors, (277), 277 states have call successors, (277) [2022-11-16 12:52:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 12:52:41,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:52:41,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:52:41,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:52:41,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:41,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1021832113, now seen corresponding path program 1 times [2022-11-16 12:52:41,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:41,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734626276] [2022-11-16 12:52:41,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:41,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:42,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 12:52:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:42,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:42,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:52:42,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:52:42,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734626276] [2022-11-16 12:52:42,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734626276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:52:42,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:52:42,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:52:42,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125930473] [2022-11-16 12:52:42,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:52:42,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:52:42,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:52:42,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:52:42,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:52:42,496 INFO L87 Difference]: Start difference. First operand has 1302 states, 972 states have (on average 1.48559670781893) internal successors, (1444), 986 states have internal predecessors, (1444), 277 states have call successors, (277), 51 states have call predecessors, (277), 51 states have return successors, (277), 275 states have call predecessors, (277), 277 states have call successors, (277) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:52:46,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:52:46,235 INFO L93 Difference]: Finished difference Result 4046 states and 6671 transitions. [2022-11-16 12:52:46,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:52:46,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-11-16 12:52:46,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:52:46,275 INFO L225 Difference]: With dead ends: 4046 [2022-11-16 12:52:46,275 INFO L226 Difference]: Without dead ends: 2739 [2022-11-16 12:52:46,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:52:46,305 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 2253 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 5447 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 672 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:52:46,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2412 Valid, 5447 Invalid, 1563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [672 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-16 12:52:46,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2022-11-16 12:52:46,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2564. [2022-11-16 12:52:46,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 1919 states have (on average 1.4846274101094319) internal successors, (2849), 1935 states have internal predecessors, (2849), 544 states have call successors, (544), 101 states have call predecessors, (544), 100 states have return successors, (535), 531 states have call predecessors, (535), 535 states have call successors, (535) [2022-11-16 12:52:46,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3928 transitions. [2022-11-16 12:52:46,607 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3928 transitions. Word has length 36 [2022-11-16 12:52:46,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:52:46,608 INFO L495 AbstractCegarLoop]: Abstraction has 2564 states and 3928 transitions. [2022-11-16 12:52:46,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:52:46,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3928 transitions. [2022-11-16 12:52:46,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-16 12:52:46,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:52:46,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:52:46,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:52:46,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:52:46,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:46,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1227540809, now seen corresponding path program 1 times [2022-11-16 12:52:46,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:46,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954842735] [2022-11-16 12:52:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:46,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:47,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:52:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:47,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:47,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:52:47,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:52:47,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954842735] [2022-11-16 12:52:47,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954842735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:52:47,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:52:47,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:52:47,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926509304] [2022-11-16 12:52:47,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:52:47,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:52:47,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:52:47,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:52:47,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:52:47,235 INFO L87 Difference]: Start difference. First operand 2564 states and 3928 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:52:50,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:52:50,580 INFO L93 Difference]: Finished difference Result 7978 states and 12420 transitions. [2022-11-16 12:52:50,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:52:50,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-11-16 12:52:50,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:52:50,620 INFO L225 Difference]: With dead ends: 7978 [2022-11-16 12:52:50,621 INFO L226 Difference]: Without dead ends: 5417 [2022-11-16 12:52:50,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:52:50,638 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 2248 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 5544 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:52:50,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2407 Valid, 5544 Invalid, 1536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [642 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-16 12:52:50,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5417 states. [2022-11-16 12:52:50,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5417 to 5086. [2022-11-16 12:52:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 3810 states have (on average 1.4839895013123359) internal successors, (5654), 3834 states have internal predecessors, (5654), 1075 states have call successors, (1075), 201 states have call predecessors, (1075), 200 states have return successors, (1066), 1058 states have call predecessors, (1066), 1066 states have call successors, (1066) [2022-11-16 12:52:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 7795 transitions. [2022-11-16 12:52:51,024 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 7795 transitions. Word has length 35 [2022-11-16 12:52:51,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:52:51,025 INFO L495 AbstractCegarLoop]: Abstraction has 5086 states and 7795 transitions. [2022-11-16 12:52:51,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:52:51,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 7795 transitions. [2022-11-16 12:52:51,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 12:52:51,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:52:51,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:52:51,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:52:51,029 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:52:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash -591702726, now seen corresponding path program 1 times [2022-11-16 12:52:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:51,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357529162] [2022-11-16 12:52:51,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:51,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 12:52:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:51,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:52:51,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:52:51,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357529162] [2022-11-16 12:52:51,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357529162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:52:51,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:52:51,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:52:51,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972119535] [2022-11-16 12:52:51,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:52:51,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:52:51,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:52:51,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:52:51,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:52:51,667 INFO L87 Difference]: Start difference. First operand 5086 states and 7795 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:52:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:52:55,028 INFO L93 Difference]: Finished difference Result 15768 states and 24555 transitions. [2022-11-16 12:52:55,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:52:55,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2022-11-16 12:52:55,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:52:55,102 INFO L225 Difference]: With dead ends: 15768 [2022-11-16 12:52:55,102 INFO L226 Difference]: Without dead ends: 10685 [2022-11-16 12:52:55,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:52:55,137 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 2220 mSDsluCounter, 3283 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 5505 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:52:55,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 5505 Invalid, 1541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [654 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 12:52:55,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10685 states. [2022-11-16 12:52:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10685 to 10042. [2022-11-16 12:52:55,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10042 states, 7536 states have (on average 1.4851380042462845) internal successors, (11192), 7576 states have internal predecessors, (11192), 2105 states have call successors, (2105), 401 states have call predecessors, (2105), 400 states have return successors, (2096), 2080 states have call predecessors, (2096), 2096 states have call successors, (2096) [2022-11-16 12:52:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10042 states to 10042 states and 15393 transitions. [2022-11-16 12:52:55,789 INFO L78 Accepts]: Start accepts. Automaton has 10042 states and 15393 transitions. Word has length 38 [2022-11-16 12:52:55,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:52:55,790 INFO L495 AbstractCegarLoop]: Abstraction has 10042 states and 15393 transitions. [2022-11-16 12:52:55,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:52:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 10042 states and 15393 transitions. [2022-11-16 12:52:55,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 12:52:55,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:52:55,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:52:55,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:52:55,796 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:52:55,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1059420591, now seen corresponding path program 1 times [2022-11-16 12:52:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:55,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888421721] [2022-11-16 12:52:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:55,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:56,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 12:52:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:56,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:56,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:52:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:52:56,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:52:56,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888421721] [2022-11-16 12:52:56,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888421721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:52:56,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:52:56,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:52:56,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730044079] [2022-11-16 12:52:56,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:52:56,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:52:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:52:56,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:52:56,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:52:56,413 INFO L87 Difference]: Start difference. First operand 10042 states and 15393 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:53:00,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:00,164 INFO L93 Difference]: Finished difference Result 31288 states and 48725 transitions. [2022-11-16 12:53:00,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:53:00,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-11-16 12:53:00,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:00,322 INFO L225 Difference]: With dead ends: 31288 [2022-11-16 12:53:00,322 INFO L226 Difference]: Without dead ends: 21249 [2022-11-16 12:53:00,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:53:00,403 INFO L413 NwaCegarLoop]: 2280 mSDtfsCounter, 2223 mSDsluCounter, 3270 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 5550 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:00,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 5550 Invalid, 1534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [636 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-16 12:53:00,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21249 states. [2022-11-16 12:53:01,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21249 to 19982. [2022-11-16 12:53:01,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19982 states, 14996 states have (on average 1.484129101093625) internal successors, (22256), 15068 states have internal predecessors, (22256), 4185 states have call successors, (4185), 801 states have call predecessors, (4185), 800 states have return successors, (4176), 4144 states have call predecessors, (4176), 4176 states have call successors, (4176) [2022-11-16 12:53:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19982 states to 19982 states and 30617 transitions. [2022-11-16 12:53:01,709 INFO L78 Accepts]: Start accepts. Automaton has 19982 states and 30617 transitions. Word has length 36 [2022-11-16 12:53:01,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:01,709 INFO L495 AbstractCegarLoop]: Abstraction has 19982 states and 30617 transitions. [2022-11-16 12:53:01,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:53:01,710 INFO L276 IsEmpty]: Start isEmpty. Operand 19982 states and 30617 transitions. [2022-11-16 12:53:01,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 12:53:01,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:01,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:01,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:53:01,712 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:01,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:01,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1460746407, now seen corresponding path program 1 times [2022-11-16 12:53:01,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:01,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712598610] [2022-11-16 12:53:01,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:01,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:53:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:02,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:02,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:53:02,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:02,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712598610] [2022-11-16 12:53:02,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712598610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:53:02,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:53:02,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:53:02,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280782614] [2022-11-16 12:53:02,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:53:02,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:53:02,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:02,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:53:02,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:53:02,207 INFO L87 Difference]: Start difference. First operand 19982 states and 30617 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:53:06,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:06,398 INFO L93 Difference]: Finished difference Result 62036 states and 96549 transitions. [2022-11-16 12:53:06,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:53:06,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-11-16 12:53:06,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:06,731 INFO L225 Difference]: With dead ends: 62036 [2022-11-16 12:53:06,732 INFO L226 Difference]: Without dead ends: 42057 [2022-11-16 12:53:06,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:53:06,840 INFO L413 NwaCegarLoop]: 2176 mSDtfsCounter, 2279 mSDsluCounter, 3284 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2446 SdHoareTripleChecker+Valid, 5460 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 670 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:06,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2446 Valid, 5460 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [670 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:53:06,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42057 states. [2022-11-16 12:53:09,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42057 to 39542. [2022-11-16 12:53:09,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39542 states, 29708 states have (on average 1.4843139894977784) internal successors, (44096), 29844 states have internal predecessors, (44096), 8233 states have call successors, (8233), 1601 states have call predecessors, (8233), 1600 states have return successors, (8224), 8160 states have call predecessors, (8224), 8224 states have call successors, (8224) [2022-11-16 12:53:09,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39542 states to 39542 states and 60553 transitions. [2022-11-16 12:53:09,671 INFO L78 Accepts]: Start accepts. Automaton has 39542 states and 60553 transitions. Word has length 39 [2022-11-16 12:53:09,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:09,672 INFO L495 AbstractCegarLoop]: Abstraction has 39542 states and 60553 transitions. [2022-11-16 12:53:09,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:53:09,675 INFO L276 IsEmpty]: Start isEmpty. Operand 39542 states and 60553 transitions. [2022-11-16 12:53:09,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-16 12:53:09,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:09,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:09,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:53:09,677 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:09,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:09,678 INFO L85 PathProgramCache]: Analyzing trace with hash 43569599, now seen corresponding path program 1 times [2022-11-16 12:53:09,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:09,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597904895] [2022-11-16 12:53:09,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:09,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:53:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:10,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:53:10,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:10,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597904895] [2022-11-16 12:53:10,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597904895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:53:10,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:53:10,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:53:10,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890038423] [2022-11-16 12:53:10,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:53:10,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:53:10,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:10,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:53:10,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:53:10,349 INFO L87 Difference]: Start difference. First operand 39542 states and 60553 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:53:15,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:15,931 INFO L93 Difference]: Finished difference Result 123292 states and 191797 transitions. [2022-11-16 12:53:15,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:53:15,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2022-11-16 12:53:15,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:16,569 INFO L225 Difference]: With dead ends: 123292 [2022-11-16 12:53:16,570 INFO L226 Difference]: Without dead ends: 83753 [2022-11-16 12:53:16,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:53:16,818 INFO L413 NwaCegarLoop]: 2325 mSDtfsCounter, 2239 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 5673 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:16,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 5673 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:53:16,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83753 states. [2022-11-16 12:53:21,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83753 to 78742. [2022-11-16 12:53:21,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78742 states, 59148 states have (on average 1.4831946980455806) internal successors, (87728), 59412 states have internal predecessors, (87728), 16393 states have call successors, (16393), 3201 states have call predecessors, (16393), 3200 states have return successors, (16384), 16256 states have call predecessors, (16384), 16384 states have call successors, (16384) [2022-11-16 12:53:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78742 states to 78742 states and 120505 transitions. [2022-11-16 12:53:21,610 INFO L78 Accepts]: Start accepts. Automaton has 78742 states and 120505 transitions. Word has length 42 [2022-11-16 12:53:21,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:21,612 INFO L495 AbstractCegarLoop]: Abstraction has 78742 states and 120505 transitions. [2022-11-16 12:53:21,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:53:21,613 INFO L276 IsEmpty]: Start isEmpty. Operand 78742 states and 120505 transitions. [2022-11-16 12:53:21,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-16 12:53:21,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:21,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:21,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:53:21,616 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:21,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:21,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1197489140, now seen corresponding path program 1 times [2022-11-16 12:53:21,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:21,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652200207] [2022-11-16 12:53:21,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:21,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:22,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:53:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:22,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:22,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:53:22,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:22,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652200207] [2022-11-16 12:53:22,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652200207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:53:22,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:53:22,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:53:22,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212746044] [2022-11-16 12:53:22,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:53:22,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:53:22,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:22,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:53:22,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:53:22,045 INFO L87 Difference]: Start difference. First operand 78742 states and 120505 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:53:30,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:30,822 INFO L93 Difference]: Finished difference Result 245692 states and 382117 transitions. [2022-11-16 12:53:30,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:53:30,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2022-11-16 12:53:30,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:31,656 INFO L225 Difference]: With dead ends: 245692 [2022-11-16 12:53:31,656 INFO L226 Difference]: Without dead ends: 166953 [2022-11-16 12:53:31,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:53:31,944 INFO L413 NwaCegarLoop]: 2236 mSDtfsCounter, 2297 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2475 SdHoareTripleChecker+Valid, 5598 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:31,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2475 Valid, 5598 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 12:53:32,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166953 states. [2022-11-16 12:53:38,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166953 to 156950. [2022-11-16 12:53:39,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156950 states, 117836 states have (on average 1.482874503547303) internal successors, (174736), 118356 states have internal predecessors, (174736), 32713 states have call successors, (32713), 6401 states have call predecessors, (32713), 6400 states have return successors, (32704), 32448 states have call predecessors, (32704), 32704 states have call successors, (32704) [2022-11-16 12:53:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156950 states to 156950 states and 240153 transitions. [2022-11-16 12:53:40,185 INFO L78 Accepts]: Start accepts. Automaton has 156950 states and 240153 transitions. Word has length 41 [2022-11-16 12:53:40,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:40,186 INFO L495 AbstractCegarLoop]: Abstraction has 156950 states and 240153 transitions. [2022-11-16 12:53:40,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 12:53:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 156950 states and 240153 transitions. [2022-11-16 12:53:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 12:53:40,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:40,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:40,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:53:40,189 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:40,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 79998811, now seen corresponding path program 1 times [2022-11-16 12:53:40,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:40,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123324681] [2022-11-16 12:53:40,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:40,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:40,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-16 12:53:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:40,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:40,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:53:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:53:40,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:40,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123324681] [2022-11-16 12:53:40,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123324681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:53:40,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:53:40,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:53:40,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350276027] [2022-11-16 12:53:40,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:53:40,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:53:40,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:40,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:53:40,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:53:40,599 INFO L87 Difference]: Start difference. First operand 156950 states and 240153 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)