./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:47:31,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:47:32,047 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 10:47:32,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:47:32,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:47:32,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:47:32,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:47:32,083 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:47:32,084 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:47:32,084 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:47:32,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:47:32,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:47:32,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:47:32,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:47:32,090 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:47:32,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:47:32,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:47:32,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:47:32,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:47:32,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:47:32,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:47:32,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:47:32,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:47:32,099 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:47:32,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:47:32,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:47:32,101 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:47:32,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:47:32,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:32,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:47:32,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:47:32,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:47:32,104 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:47:32,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:47:32,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:47:32,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:47:32,106 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:47:32,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:47:32,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:47:32,107 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 [2023-11-26 10:47:32,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:47:32,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:47:32,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:47:32,462 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:47:32,463 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:47:32,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2023-11-26 10:47:35,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:47:36,104 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:47:36,105 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2023-11-26 10:47:36,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/data/51ffe3fd3/f73319a20740417f9216f42cbb32418d/FLAG1f4a5eed5 [2023-11-26 10:47:36,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/data/51ffe3fd3/f73319a20740417f9216f42cbb32418d [2023-11-26 10:47:36,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:47:36,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:47:36,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:36,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:47:36,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:47:36,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:36" (1/1) ... [2023-11-26 10:47:36,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb7bf7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:36, skipping insertion in model container [2023-11-26 10:47:36,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:36" (1/1) ... [2023-11-26 10:47:36,300 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:47:37,367 WARN L240 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_52e58a53-b3ee-4ab9-a33c-8670687259ce/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2023-11-26 10:47:37,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:37,495 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:47:37,714 WARN L240 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_52e58a53-b3ee-4ab9-a33c-8670687259ce/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2023-11-26 10:47:37,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:37,793 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:37,793 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:37,802 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:47:37,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37 WrapperNode [2023-11-26 10:47:37,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:37,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:37,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:47:37,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:47:37,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:37,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:37,989 INFO L138 Inliner]: procedures = 128, calls = 768, calls flagged for inlining = 53, calls inlined = 47, statements flattened = 2599 [2023-11-26 10:47:37,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:37,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:47:37,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:47:37,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:47:38,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,214 INFO L175 MemorySlicer]: Split 361 memory accesses to 17 slices as follows [2, 49, 8, 22, 121, 40, 2, 14, 7, 2, 6, 7, 17, 5, 50, 8, 1]. 34 percent of accesses are in the largest equivalence class. The 164 initializations are split as follows [2, 0, 6, 22, 0, 40, 1, 14, 0, 0, 0, 7, 17, 5, 50, 0, 0]. The 82 writes are split as follows [0, 42, 0, 0, 30, 0, 0, 0, 6, 1, 0, 0, 0, 0, 0, 3, 0]. [2023-11-26 10:47:38,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:47:38,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:47:38,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:47:38,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:47:38,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (1/1) ... [2023-11-26 10:47:38,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:38,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:38,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:47:38,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:47:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-26 10:47:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-26 10:47:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_remove [2023-11-26 10:47:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_remove [2023-11-26 10:47:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-26 10:47:38,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-26 10:47:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:47:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:47:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 10:47:38,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 10:47:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 10:47:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 10:47:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 10:47:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 10:47:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 10:47:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-26 10:47:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-26 10:47:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-26 10:47:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-26 10:47:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-26 10:47:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-26 10:47:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-26 10:47:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-26 10:47:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_bin_file [2023-11-26 10:47:38,493 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_bin_file [2023-11-26 10:47:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_modify_write_reg [2023-11-26 10:47:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_modify_write_reg [2023-11-26 10:47:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pch_phub_mutex [2023-11-26 10:47:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pch_phub_mutex [2023-11-26 10:47:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-26 10:47:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-26 10:47:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-26 10:47:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-26 10:47:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:47:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:47:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:47:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:47:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 10:47:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 10:47:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 10:47:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 10:47:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 10:47:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-26 10:47:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-26 10:47:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-26 10:47:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-26 10:47:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-26 10:47:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-26 10:47:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-26 10:47:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-26 10:47:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-26 10:47:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-26 10:47:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-26 10:47:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-26 10:47:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-26 10:47:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-26 10:47:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-26 10:47:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-26 10:47:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-26 10:47:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-26 10:47:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-26 10:47:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-26 10:47:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:47:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_file [2023-11-26 10:47:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_file [2023-11-26 10:47:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:47:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-26 10:47:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-26 10:47:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_rom [2023-11-26 10:47:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_rom [2023-11-26 10:47:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 10:47:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 10:47:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 10:47:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 10:47:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 10:47:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 10:47:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 10:47:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 10:47:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 10:47:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-26 10:47:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-26 10:47:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-26 10:47:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-26 10:47:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-26 10:47:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-26 10:47:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-26 10:47:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-26 10:47:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:47:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-26 10:47:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 10:47:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-26 10:47:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-26 10:47:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-26 10:47:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-26 10:47:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-26 10:47:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-26 10:47:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-26 10:47:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-26 10:47:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-26 10:47:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-26 10:47:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-11-26 10:47:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-11-26 10:47:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-26 10:47:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-26 10:47:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-26 10:47:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:47:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2023-11-26 10:47:38,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2023-11-26 10:47:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 10:47:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 10:47:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 10:47:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 10:47:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-26 10:47:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-26 10:47:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-26 10:47:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-26 10:47:38,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-26 10:47:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-26 10:47:38,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-26 10:47:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-26 10:47:38,571 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-26 10:47:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom [2023-11-26 10:47:38,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom [2023-11-26 10:47:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:47:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:47:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:47:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:47:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 10:47:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 10:47:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-26 10:47:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:47:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:47:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2023-11-26 10:47:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2023-11-26 10:47:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom [2023-11-26 10:47:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom [2023-11-26 10:47:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_rom [2023-11-26 10:47:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_rom [2023-11-26 10:47:39,113 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:47:39,116 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:47:41,467 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:47:41,621 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:47:41,622 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:47:41,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:41 BoogieIcfgContainer [2023-11-26 10:47:41,623 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:47:41,625 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:47:41,625 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:47:41,628 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:47:41,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:47:36" (1/3) ... [2023-11-26 10:47:41,629 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8dae80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:41, skipping insertion in model container [2023-11-26 10:47:41,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:37" (2/3) ... [2023-11-26 10:47:41,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8dae80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:41, skipping insertion in model container [2023-11-26 10:47:41,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:41" (3/3) ... [2023-11-26 10:47:41,632 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2023-11-26 10:47:41,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:47:41,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:47:41,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:41,737 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=LoopHeads, 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;@700be959, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:41,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:47:41,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 723 states, 504 states have (on average 1.4305555555555556) internal successors, (721), 514 states have internal predecessors, (721), 187 states have call successors, (187), 30 states have call predecessors, (187), 30 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2023-11-26 10:47:41,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 10:47:41,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:41,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:41,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:41,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:41,771 INFO L85 PathProgramCache]: Analyzing trace with hash 922268611, now seen corresponding path program 1 times [2023-11-26 10:47:41,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:41,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143743135] [2023-11-26 10:47:41,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:41,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:42,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:42,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143743135] [2023-11-26 10:47:42,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143743135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:42,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:42,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:42,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747171378] [2023-11-26 10:47:42,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:42,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:42,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:42,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:42,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:42,441 INFO L87 Difference]: Start difference. First operand has 723 states, 504 states have (on average 1.4305555555555556) internal successors, (721), 514 states have internal predecessors, (721), 187 states have call successors, (187), 30 states have call predecessors, (187), 30 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:42,951 INFO L93 Difference]: Finished difference Result 2155 states and 3317 transitions. [2023-11-26 10:47:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:42,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-26 10:47:42,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:42,978 INFO L225 Difference]: With dead ends: 2155 [2023-11-26 10:47:42,978 INFO L226 Difference]: Without dead ends: 1431 [2023-11-26 10:47:42,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:42,991 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 1065 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:42,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 2042 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:47:43,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2023-11-26 10:47:43,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1427. [2023-11-26 10:47:43,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 999 states have (on average 1.4204204204204205) internal successors, (1419), 1011 states have internal predecessors, (1419), 369 states have call successors, (369), 59 states have call predecessors, (369), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2023-11-26 10:47:43,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 2152 transitions. [2023-11-26 10:47:43,180 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 2152 transitions. Word has length 11 [2023-11-26 10:47:43,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:43,180 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 2152 transitions. [2023-11-26 10:47:43,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:43,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 2152 transitions. [2023-11-26 10:47:43,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 10:47:43,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:43,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:43,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:47:43,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:43,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:43,184 INFO L85 PathProgramCache]: Analyzing trace with hash -991150676, now seen corresponding path program 1 times [2023-11-26 10:47:43,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:43,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614805901] [2023-11-26 10:47:43,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:43,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:43,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:43,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:43,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614805901] [2023-11-26 10:47:43,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614805901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:43,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:43,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:47:43,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569172857] [2023-11-26 10:47:43,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:43,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:43,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:43,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:43,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:43,297 INFO L87 Difference]: Start difference. First operand 1427 states and 2152 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:43,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:43,498 INFO L93 Difference]: Finished difference Result 1445 states and 2172 transitions. [2023-11-26 10:47:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:43,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-26 10:47:43,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:43,513 INFO L225 Difference]: With dead ends: 1445 [2023-11-26 10:47:43,513 INFO L226 Difference]: Without dead ends: 1436 [2023-11-26 10:47:43,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:43,517 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 1080 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:43,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 1042 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:47:43,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2023-11-26 10:47:43,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1427. [2023-11-26 10:47:43,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 999 states have (on average 1.4194194194194194) internal successors, (1418), 1011 states have internal predecessors, (1418), 369 states have call successors, (369), 59 states have call predecessors, (369), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2023-11-26 10:47:43,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 2151 transitions. [2023-11-26 10:47:43,727 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 2151 transitions. Word has length 14 [2023-11-26 10:47:43,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:43,728 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 2151 transitions. [2023-11-26 10:47:43,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 2151 transitions. [2023-11-26 10:47:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 10:47:43,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:43,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:43,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:47:43,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:43,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:43,746 INFO L85 PathProgramCache]: Analyzing trace with hash -933892374, now seen corresponding path program 1 times [2023-11-26 10:47:43,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:43,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312681491] [2023-11-26 10:47:43,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:43,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:43,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:43,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312681491] [2023-11-26 10:47:43,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312681491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:43,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:43,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:43,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031061156] [2023-11-26 10:47:43,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:43,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:43,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:43,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:43,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:43,908 INFO L87 Difference]: Start difference. First operand 1427 states and 2151 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:44,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:44,112 INFO L93 Difference]: Finished difference Result 1429 states and 2152 transitions. [2023-11-26 10:47:44,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:44,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-26 10:47:44,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:44,124 INFO L225 Difference]: With dead ends: 1429 [2023-11-26 10:47:44,124 INFO L226 Difference]: Without dead ends: 1426 [2023-11-26 10:47:44,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:44,132 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 1072 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:44,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 1020 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:47:44,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2023-11-26 10:47:44,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2023-11-26 10:47:44,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 999 states have (on average 1.4184184184184183) internal successors, (1417), 1010 states have internal predecessors, (1417), 368 states have call successors, (368), 59 states have call predecessors, (368), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2023-11-26 10:47:44,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2149 transitions. [2023-11-26 10:47:44,248 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2149 transitions. Word has length 14 [2023-11-26 10:47:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:44,249 INFO L495 AbstractCegarLoop]: Abstraction has 1426 states and 2149 transitions. [2023-11-26 10:47:44,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:44,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2149 transitions. [2023-11-26 10:47:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 10:47:44,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:44,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:44,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:47:44,251 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:44,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1113739247, now seen corresponding path program 1 times [2023-11-26 10:47:44,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:44,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480929611] [2023-11-26 10:47:44,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:44,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:44,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:44,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:44,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480929611] [2023-11-26 10:47:44,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480929611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:44,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:44,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:44,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627726995] [2023-11-26 10:47:44,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:44,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:44,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:44,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:44,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:44,348 INFO L87 Difference]: Start difference. First operand 1426 states and 2149 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:44,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:44,596 INFO L93 Difference]: Finished difference Result 1428 states and 2150 transitions. [2023-11-26 10:47:44,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:44,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-26 10:47:44,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:44,609 INFO L225 Difference]: With dead ends: 1428 [2023-11-26 10:47:44,609 INFO L226 Difference]: Without dead ends: 1425 [2023-11-26 10:47:44,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:44,612 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 1069 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:44,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 1018 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:47:44,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2023-11-26 10:47:44,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1425. [2023-11-26 10:47:44,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 999 states have (on average 1.4174174174174174) internal successors, (1416), 1009 states have internal predecessors, (1416), 367 states have call successors, (367), 59 states have call predecessors, (367), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2023-11-26 10:47:44,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2147 transitions. [2023-11-26 10:47:44,768 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2147 transitions. Word has length 15 [2023-11-26 10:47:44,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:44,769 INFO L495 AbstractCegarLoop]: Abstraction has 1425 states and 2147 transitions. [2023-11-26 10:47:44,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:44,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2147 transitions. [2023-11-26 10:47:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 10:47:44,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:44,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:44,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:47:44,771 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:44,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:44,772 INFO L85 PathProgramCache]: Analyzing trace with hash 165814925, now seen corresponding path program 1 times [2023-11-26 10:47:44,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:44,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340522654] [2023-11-26 10:47:44,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:44,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:44,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:44,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:44,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340522654] [2023-11-26 10:47:44,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340522654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:44,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:44,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:44,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696461309] [2023-11-26 10:47:44,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:44,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:44,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:44,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:44,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:44,966 INFO L87 Difference]: Start difference. First operand 1425 states and 2147 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:45,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:45,368 INFO L93 Difference]: Finished difference Result 4243 states and 6411 transitions. [2023-11-26 10:47:45,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:45,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-26 10:47:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:45,391 INFO L225 Difference]: With dead ends: 4243 [2023-11-26 10:47:45,392 INFO L226 Difference]: Without dead ends: 2815 [2023-11-26 10:47:45,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:45,401 INFO L413 NwaCegarLoop]: 1117 mSDtfsCounter, 1063 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:45,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 2112 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:47:45,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2023-11-26 10:47:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2800. [2023-11-26 10:47:45,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 1968 states have (on average 1.4197154471544715) internal successors, (2794), 1993 states have internal predecessors, (2794), 719 states have call successors, (719), 114 states have call predecessors, (719), 112 states have return successors, (720), 708 states have call predecessors, (720), 712 states have call successors, (720) [2023-11-26 10:47:45,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 4233 transitions. [2023-11-26 10:47:45,650 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 4233 transitions. Word has length 16 [2023-11-26 10:47:45,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:45,651 INFO L495 AbstractCegarLoop]: Abstraction has 2800 states and 4233 transitions. [2023-11-26 10:47:45,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:45,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 4233 transitions. [2023-11-26 10:47:45,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-26 10:47:45,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:45,656 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, 1] [2023-11-26 10:47:45,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:47:45,656 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:45,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:45,657 INFO L85 PathProgramCache]: Analyzing trace with hash -543258423, now seen corresponding path program 1 times [2023-11-26 10:47:45,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:45,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628575142] [2023-11-26 10:47:45,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:45,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:47:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:45,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:47:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 10:47:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:45,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-26 10:47:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:45,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 10:47:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:45,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:45,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628575142] [2023-11-26 10:47:45,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628575142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:45,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:45,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:45,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986113158] [2023-11-26 10:47:45,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:45,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:47:45,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:45,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:47:45,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:47:45,819 INFO L87 Difference]: Start difference. First operand 2800 states and 4233 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:47:48,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:48,514 INFO L93 Difference]: Finished difference Result 8194 states and 12439 transitions. [2023-11-26 10:47:48,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 10:47:48,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2023-11-26 10:47:48,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:48,564 INFO L225 Difference]: With dead ends: 8194 [2023-11-26 10:47:48,564 INFO L226 Difference]: Without dead ends: 5395 [2023-11-26 10:47:48,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:47:48,582 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 1054 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:48,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 2847 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [800 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-26 10:47:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2023-11-26 10:47:49,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 5260. [2023-11-26 10:47:49,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5260 states, 3700 states have (on average 1.4178378378378378) internal successors, (5246), 3741 states have internal predecessors, (5246), 1347 states have call successors, (1347), 214 states have call predecessors, (1347), 212 states have return successors, (1348), 1336 states have call predecessors, (1348), 1340 states have call successors, (1348) [2023-11-26 10:47:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5260 states to 5260 states and 7941 transitions. [2023-11-26 10:47:49,120 INFO L78 Accepts]: Start accepts. Automaton has 5260 states and 7941 transitions. Word has length 43 [2023-11-26 10:47:49,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:49,121 INFO L495 AbstractCegarLoop]: Abstraction has 5260 states and 7941 transitions. [2023-11-26 10:47:49,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:47:49,121 INFO L276 IsEmpty]: Start isEmpty. Operand 5260 states and 7941 transitions. [2023-11-26 10:47:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-26 10:47:49,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:49,127 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:49,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:47:49,128 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:49,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:49,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1618160232, now seen corresponding path program 1 times [2023-11-26 10:47:49,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:49,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558055009] [2023-11-26 10:47:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:49,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 10:47:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:49,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:47:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 10:47:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:49,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 10:47:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:49,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:47:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:49,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:49,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558055009] [2023-11-26 10:47:49,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558055009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:49,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:49,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:49,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648472068] [2023-11-26 10:47:49,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:49,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:47:49,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:49,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:47:49,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:47:49,366 INFO L87 Difference]: Start difference. First operand 5260 states and 7941 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:47:52,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:52,449 INFO L93 Difference]: Finished difference Result 13214 states and 20047 transitions. [2023-11-26 10:47:52,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 10:47:52,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2023-11-26 10:47:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:52,631 INFO L225 Difference]: With dead ends: 13214 [2023-11-26 10:47:52,631 INFO L226 Difference]: Without dead ends: 7955 [2023-11-26 10:47:52,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:47:52,661 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 961 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:52,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 4628 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-26 10:47:52,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2023-11-26 10:47:53,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 7756. [2023-11-26 10:47:53,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7756 states, 5468 states have (on average 1.4180687637161669) internal successors, (7754), 5525 states have internal predecessors, (7754), 1975 states have call successors, (1975), 314 states have call predecessors, (1975), 312 states have return successors, (1976), 1964 states have call predecessors, (1976), 1968 states have call successors, (1976) [2023-11-26 10:47:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 11705 transitions. [2023-11-26 10:47:53,569 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 11705 transitions. Word has length 52 [2023-11-26 10:47:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:53,570 INFO L495 AbstractCegarLoop]: Abstraction has 7756 states and 11705 transitions. [2023-11-26 10:47:53,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:47:53,571 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 11705 transitions. [2023-11-26 10:47:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-26 10:47:53,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:53,581 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:53,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:47:53,581 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:53,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:53,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1822562020, now seen corresponding path program 1 times [2023-11-26 10:47:53,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:53,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394811021] [2023-11-26 10:47:53,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:53,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:47:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:53,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:47:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 10:47:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:47:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:47:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 10:47:53,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:53,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394811021] [2023-11-26 10:47:53,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394811021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:53,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:53,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:47:53,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530227827] [2023-11-26 10:47:53,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:53,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:47:53,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:53,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:47:53,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:47:53,988 INFO L87 Difference]: Start difference. First operand 7756 states and 11705 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-26 10:47:56,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:47:56,228 INFO L93 Difference]: Finished difference Result 15703 states and 23785 transitions. [2023-11-26 10:47:56,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:47:56,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 63 [2023-11-26 10:47:56,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:47:56,287 INFO L225 Difference]: With dead ends: 15703 [2023-11-26 10:47:56,287 INFO L226 Difference]: Without dead ends: 7948 [2023-11-26 10:47:56,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:47:56,332 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 1057 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:47:56,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 2786 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-26 10:47:56,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7948 states. [2023-11-26 10:47:57,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7948 to 7756. [2023-11-26 10:47:57,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7756 states, 5468 states have (on average 1.4173372348207753) internal successors, (7750), 5525 states have internal predecessors, (7750), 1975 states have call successors, (1975), 314 states have call predecessors, (1975), 312 states have return successors, (1976), 1964 states have call predecessors, (1976), 1968 states have call successors, (1976) [2023-11-26 10:47:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 11701 transitions. [2023-11-26 10:47:57,260 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 11701 transitions. Word has length 63 [2023-11-26 10:47:57,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:47:57,261 INFO L495 AbstractCegarLoop]: Abstraction has 7756 states and 11701 transitions. [2023-11-26 10:47:57,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-26 10:47:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 11701 transitions. [2023-11-26 10:47:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 10:47:57,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:57,271 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:57,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:47:57,271 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:47:57,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:57,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1695097060, now seen corresponding path program 1 times [2023-11-26 10:47:57,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:57,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003128798] [2023-11-26 10:47:57,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:57,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:57,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:47:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:57,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:47:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 10:47:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:57,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:47:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 10:47:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 10:47:57,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:57,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003128798] [2023-11-26 10:47:57,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003128798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:57,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:57,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:57,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981952418] [2023-11-26 10:47:57,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:57,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:47:57,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:57,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:47:57,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:47:57,625 INFO L87 Difference]: Start difference. First operand 7756 states and 11701 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:48:00,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:00,714 INFO L93 Difference]: Finished difference Result 15705 states and 23778 transitions. [2023-11-26 10:48:00,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:48:00,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2023-11-26 10:48:00,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:00,756 INFO L225 Difference]: With dead ends: 15705 [2023-11-26 10:48:00,756 INFO L226 Difference]: Without dead ends: 7950 [2023-11-26 10:48:00,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:48:00,789 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1104 mSDsluCounter, 2974 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 4576 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:00,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 4576 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-26 10:48:00,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7950 states. [2023-11-26 10:48:01,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7950 to 7744. [2023-11-26 10:48:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7744 states, 5461 states have (on average 1.4171397180003662) internal successors, (7739), 5519 states have internal predecessors, (7739), 1971 states have call successors, (1971), 312 states have call predecessors, (1971), 311 states have return successors, (1966), 1960 states have call predecessors, (1966), 1962 states have call successors, (1966) [2023-11-26 10:48:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7744 states to 7744 states and 11676 transitions. [2023-11-26 10:48:01,536 INFO L78 Accepts]: Start accepts. Automaton has 7744 states and 11676 transitions. Word has length 64 [2023-11-26 10:48:01,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:01,538 INFO L495 AbstractCegarLoop]: Abstraction has 7744 states and 11676 transitions. [2023-11-26 10:48:01,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:48:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 7744 states and 11676 transitions. [2023-11-26 10:48:01,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 10:48:01,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:01,546 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:01,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:48:01,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:48:01,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1246560539, now seen corresponding path program 1 times [2023-11-26 10:48:01,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:01,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65193944] [2023-11-26 10:48:01,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:01,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:48:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:01,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:48:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:01,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 10:48:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:01,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:48:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:01,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 10:48:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 10:48:01,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:01,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65193944] [2023-11-26 10:48:01,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65193944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:01,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:01,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:48:01,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145524708] [2023-11-26 10:48:01,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:01,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:48:01,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:01,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:48:01,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:48:01,785 INFO L87 Difference]: Start difference. First operand 7744 states and 11676 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:48:04,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:04,158 INFO L93 Difference]: Finished difference Result 8031 states and 12164 transitions. [2023-11-26 10:48:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 10:48:04,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2023-11-26 10:48:04,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:04,192 INFO L225 Difference]: With dead ends: 8031 [2023-11-26 10:48:04,192 INFO L226 Difference]: Without dead ends: 7907 [2023-11-26 10:48:04,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:48:04,198 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 188 mSDsluCounter, 3418 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 4341 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:04,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 4341 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-26 10:48:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2023-11-26 10:48:04,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 7713. [2023-11-26 10:48:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7713 states, 5440 states have (on average 1.4165441176470588) internal successors, (7706), 5494 states have internal predecessors, (7706), 1961 states have call successors, (1961), 312 states have call predecessors, (1961), 311 states have return successors, (1958), 1954 states have call predecessors, (1958), 1954 states have call successors, (1958) [2023-11-26 10:48:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7713 states to 7713 states and 11625 transitions. [2023-11-26 10:48:04,910 INFO L78 Accepts]: Start accepts. Automaton has 7713 states and 11625 transitions. Word has length 64 [2023-11-26 10:48:04,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:04,911 INFO L495 AbstractCegarLoop]: Abstraction has 7713 states and 11625 transitions. [2023-11-26 10:48:04,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:48:04,911 INFO L276 IsEmpty]: Start isEmpty. Operand 7713 states and 11625 transitions. [2023-11-26 10:48:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-26 10:48:04,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:04,920 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:04,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:48:04,921 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:48:04,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:04,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1448611295, now seen corresponding path program 1 times [2023-11-26 10:48:04,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:04,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980328951] [2023-11-26 10:48:04,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:04,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:05,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 10:48:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:48:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:05,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 10:48:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-26 10:48:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:05,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 10:48:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:05,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:48:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 10:48:05,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:05,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980328951] [2023-11-26 10:48:05,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980328951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:05,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:05,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:48:05,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70737710] [2023-11-26 10:48:05,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:05,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:48:05,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:05,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:48:05,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:48:05,400 INFO L87 Difference]: Start difference. First operand 7713 states and 11625 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 10:48:08,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:08,271 INFO L93 Difference]: Finished difference Result 7947 states and 12034 transitions. [2023-11-26 10:48:08,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 10:48:08,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2023-11-26 10:48:08,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:08,320 INFO L225 Difference]: With dead ends: 7947 [2023-11-26 10:48:08,320 INFO L226 Difference]: Without dead ends: 7859 [2023-11-26 10:48:08,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:48:08,329 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 187 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 4347 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:08,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 4347 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-26 10:48:08,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7859 states. [2023-11-26 10:48:09,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7859 to 7663. [2023-11-26 10:48:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7663 states, 5407 states have (on average 1.4161272424634732) internal successors, (7657), 5457 states have internal predecessors, (7657), 1944 states have call successors, (1944), 311 states have call predecessors, (1944), 311 states have return successors, (1944), 1942 states have call predecessors, (1944), 1940 states have call successors, (1944) [2023-11-26 10:48:09,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7663 states to 7663 states and 11545 transitions. [2023-11-26 10:48:09,148 INFO L78 Accepts]: Start accepts. Automaton has 7663 states and 11545 transitions. Word has length 70 [2023-11-26 10:48:09,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:09,150 INFO L495 AbstractCegarLoop]: Abstraction has 7663 states and 11545 transitions. [2023-11-26 10:48:09,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 10:48:09,150 INFO L276 IsEmpty]: Start isEmpty. Operand 7663 states and 11545 transitions. [2023-11-26 10:48:09,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 10:48:09,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:09,160 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:09,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:48:09,160 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:48:09,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:09,161 INFO L85 PathProgramCache]: Analyzing trace with hash 91833141, now seen corresponding path program 1 times [2023-11-26 10:48:09,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:09,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22796279] [2023-11-26 10:48:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:09,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:09,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:48:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:09,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:48:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 10:48:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:48:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 10:48:09,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:09,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22796279] [2023-11-26 10:48:09,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22796279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:09,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:09,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:48:09,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277177868] [2023-11-26 10:48:09,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:09,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:48:09,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:09,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:48:09,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:48:09,520 INFO L87 Difference]: Start difference. First operand 7663 states and 11545 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:48:11,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:11,869 INFO L93 Difference]: Finished difference Result 11616 states and 17591 transitions. [2023-11-26 10:48:11,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 10:48:11,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 65 [2023-11-26 10:48:11,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:11,916 INFO L225 Difference]: With dead ends: 11616 [2023-11-26 10:48:11,917 INFO L226 Difference]: Without dead ends: 7863 [2023-11-26 10:48:11,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:48:11,939 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 202 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 4324 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:11,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 4324 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-26 10:48:11,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7863 states. [2023-11-26 10:48:12,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7863 to 7661. [2023-11-26 10:48:12,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7661 states, 5405 states have (on average 1.4159111933395006) internal successors, (7653), 5455 states have internal predecessors, (7653), 1944 states have call successors, (1944), 311 states have call predecessors, (1944), 311 states have return successors, (1944), 1942 states have call predecessors, (1944), 1940 states have call successors, (1944) [2023-11-26 10:48:12,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7661 states to 7661 states and 11541 transitions. [2023-11-26 10:48:12,614 INFO L78 Accepts]: Start accepts. Automaton has 7661 states and 11541 transitions. Word has length 65 [2023-11-26 10:48:12,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:12,614 INFO L495 AbstractCegarLoop]: Abstraction has 7661 states and 11541 transitions. [2023-11-26 10:48:12,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:48:12,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7661 states and 11541 transitions. [2023-11-26 10:48:12,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 10:48:12,623 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:12,623 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:12,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:48:12,623 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:48:12,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:12,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1884121842, now seen corresponding path program 1 times [2023-11-26 10:48:12,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:12,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455208806] [2023-11-26 10:48:12,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:12,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:12,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 10:48:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:48:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:12,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 10:48:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-26 10:48:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:12,862 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-26 10:48:12,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455208806] [2023-11-26 10:48:12,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455208806] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:48:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311706191] [2023-11-26 10:48:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:12,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:12,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:12,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:12,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e58a53-b3ee-4ab9-a33c-8670687259ce/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:48:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:13,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:48:13,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-26 10:48:13,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:13,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311706191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:13,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:48:13,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-26 10:48:13,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605171547] [2023-11-26 10:48:13,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:13,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:13,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:13,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:13,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:48:13,744 INFO L87 Difference]: Start difference. First operand 7661 states and 11541 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:48:16,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:16,510 INFO L93 Difference]: Finished difference Result 22988 states and 34627 transitions. [2023-11-26 10:48:16,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:16,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 67 [2023-11-26 10:48:16,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:16,618 INFO L225 Difference]: With dead ends: 22988 [2023-11-26 10:48:16,618 INFO L226 Difference]: Without dead ends: 22981 [2023-11-26 10:48:16,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:48:16,630 INFO L413 NwaCegarLoop]: 1869 mSDtfsCounter, 2181 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:16,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 3527 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 10:48:16,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22981 states.