./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl --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 32bit --witnessprinter.graph.data.programhash bd635b7902366e8a0b08b14a90a1f3949f04bf734a3e09a83f5077ced842f5da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:01,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:01,266 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:15:01,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:01,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:01,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:01,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:01,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:01,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:01,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:01,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:01,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:01,332 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:01,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:01,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:01,334 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:01,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:01,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:01,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:01,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:01,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:01,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:01,337 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:01,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:01,338 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:01,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:01,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:01,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:01,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:01,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:01,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:01,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:01,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:01,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:01,342 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:01,343 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:01,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:01,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:01,343 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:01,343 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_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd635b7902366e8a0b08b14a90a1f3949f04bf734a3e09a83f5077ced842f5da [2023-11-12 02:15:01,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:01,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:01,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:01,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:01,679 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:01,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i [2023-11-12 02:15:05,035 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:05,467 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:05,469 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i [2023-11-12 02:15:05,498 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/data/7e87e2b89/639d5df8bf6b491b96a262bf1f78d1fb/FLAG0a676fc90 [2023-11-12 02:15:05,516 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/data/7e87e2b89/639d5df8bf6b491b96a262bf1f78d1fb [2023-11-12 02:15:05,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:05,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:05,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:05,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:05,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:05,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:05" (1/1) ... [2023-11-12 02:15:05,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50376821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:05, skipping insertion in model container [2023-11-12 02:15:05,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:05" (1/1) ... [2023-11-12 02:15:05,638 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:06,302 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_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[44118,44131] [2023-11-12 02:15:06,318 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_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[44660,44673] [2023-11-12 02:15:06,430 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_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[56247,56260] [2023-11-12 02:15:06,432 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_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[56368,56381] [2023-11-12 02:15:06,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:06,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:06,512 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_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[44118,44131] [2023-11-12 02:15:06,525 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_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[44660,44673] [2023-11-12 02:15:06,602 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_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[56247,56260] [2023-11-12 02:15:06,603 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_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[56368,56381] [2023-11-12 02:15:06,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:06,747 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:06,783 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:06,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06 WrapperNode [2023-11-12 02:15:06,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:06,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:06,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:06,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:06,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:06,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:06,942 INFO L138 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1542 [2023-11-12 02:15:06,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:06,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:06,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:06,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:06,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:06,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:06,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:06,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:07,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:07,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:07,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:07,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:07,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:07,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:07,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:07,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:07,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (1/1) ... [2023-11-12 02:15:07,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:07,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:07,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:07,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:07,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:15:07,222 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 02:15:07,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:15:07,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:15:07,224 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-12 02:15:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-12 02:15:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:15:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:15:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:15:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:15:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:15:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-12 02:15:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-12 02:15:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:15:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-12 02:15:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-12 02:15:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:07,526 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:07,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:09,248 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:09,261 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:09,261 INFO L302 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-12 02:15:09,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:09 BoogieIcfgContainer [2023-11-12 02:15:09,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:09,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:09,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:09,272 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:09,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:05" (1/3) ... [2023-11-12 02:15:09,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdcb4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:09, skipping insertion in model container [2023-11-12 02:15:09,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:06" (2/3) ... [2023-11-12 02:15:09,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdcb4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:09, skipping insertion in model container [2023-11-12 02:15:09,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:09" (3/3) ... [2023-11-12 02:15:09,276 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-2.i [2023-11-12 02:15:09,298 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:09,299 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 02:15:09,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:09,376 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;@1583c700, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:09,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 02:15:09,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 431 states, 407 states have (on average 1.660933660933661) internal successors, (676), 411 states have internal predecessors, (676), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-12 02:15:09,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:15:09,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:09,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:09,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:09,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:09,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1053908008, now seen corresponding path program 1 times [2023-11-12 02:15:09,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:09,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55259221] [2023-11-12 02:15:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:09,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:09,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:09,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55259221] [2023-11-12 02:15:09,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55259221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:09,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:09,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:15:09,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907084699] [2023-11-12 02:15:09,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:09,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:15:09,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:09,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:15:09,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:09,657 INFO L87 Difference]: Start difference. First operand has 431 states, 407 states have (on average 1.660933660933661) internal successors, (676), 411 states have internal predecessors, (676), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:09,743 INFO L93 Difference]: Finished difference Result 857 states and 1422 transitions. [2023-11-12 02:15:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:15:09,746 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 02:15:09,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:09,761 INFO L225 Difference]: With dead ends: 857 [2023-11-12 02:15:09,761 INFO L226 Difference]: Without dead ends: 424 [2023-11-12 02:15:09,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:09,771 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:09,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:09,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-11-12 02:15:09,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2023-11-12 02:15:09,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 401 states have (on average 1.4713216957605986) internal successors, (590), 405 states have internal predecessors, (590), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 620 transitions. [2023-11-12 02:15:09,853 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 620 transitions. Word has length 8 [2023-11-12 02:15:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:09,854 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 620 transitions. [2023-11-12 02:15:09,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 620 transitions. [2023-11-12 02:15:09,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:15:09,856 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:09,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:09,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:15:09,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:09,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:09,858 INFO L85 PathProgramCache]: Analyzing trace with hash -719765386, now seen corresponding path program 1 times [2023-11-12 02:15:09,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:09,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532765099] [2023-11-12 02:15:09,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:09,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:10,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:10,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532765099] [2023-11-12 02:15:10,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532765099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:10,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:10,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:10,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455725285] [2023-11-12 02:15:10,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:10,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:10,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:10,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:10,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:10,131 INFO L87 Difference]: Start difference. First operand 424 states and 620 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:10,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:10,808 INFO L93 Difference]: Finished difference Result 967 states and 1432 transitions. [2023-11-12 02:15:10,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:15:10,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:15:10,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:10,816 INFO L225 Difference]: With dead ends: 967 [2023-11-12 02:15:10,816 INFO L226 Difference]: Without dead ends: 737 [2023-11-12 02:15:10,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:10,819 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 453 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:10,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1752 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 02:15:10,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-12 02:15:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 426. [2023-11-12 02:15:10,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 403 states have (on average 1.468982630272953) internal successors, (592), 407 states have internal predecessors, (592), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:10,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 622 transitions. [2023-11-12 02:15:10,852 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 622 transitions. Word has length 10 [2023-11-12 02:15:10,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:10,853 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 622 transitions. [2023-11-12 02:15:10,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:10,853 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 622 transitions. [2023-11-12 02:15:10,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:15:10,856 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:10,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:10,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:15:10,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:10,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:10,858 INFO L85 PathProgramCache]: Analyzing trace with hash 512859417, now seen corresponding path program 1 times [2023-11-12 02:15:10,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:10,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002550164] [2023-11-12 02:15:10,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:10,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:10,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:10,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227390395] [2023-11-12 02:15:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:10,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:10,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:10,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:10,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:15:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:11,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:15:11,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:11,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:11,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:11,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002550164] [2023-11-12 02:15:11,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:11,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227390395] [2023-11-12 02:15:11,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227390395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:11,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:11,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:11,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701594710] [2023-11-12 02:15:11,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:11,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:11,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:11,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:11,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:11,306 INFO L87 Difference]: Start difference. First operand 426 states and 622 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:11,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:11,410 INFO L93 Difference]: Finished difference Result 869 states and 1271 transitions. [2023-11-12 02:15:11,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:11,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-12 02:15:11,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:11,416 INFO L225 Difference]: With dead ends: 869 [2023-11-12 02:15:11,417 INFO L226 Difference]: Without dead ends: 447 [2023-11-12 02:15:11,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:11,422 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 9 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:11,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1185 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:11,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-12 02:15:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2023-11-12 02:15:11,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 423 states have (on average 1.446808510638298) internal successors, (612), 427 states have internal predecessors, (612), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 642 transitions. [2023-11-12 02:15:11,450 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 642 transitions. Word has length 66 [2023-11-12 02:15:11,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:11,451 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 642 transitions. [2023-11-12 02:15:11,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 642 transitions. [2023-11-12 02:15:11,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:15:11,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:11,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:11,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:11,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:11,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:11,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash 264712923, now seen corresponding path program 1 times [2023-11-12 02:15:11,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:11,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663112062] [2023-11-12 02:15:11,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:11,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:11,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:11,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890760724] [2023-11-12 02:15:11,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:11,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:11,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:11,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:11,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:15:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:12,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:15:12,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:12,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:12,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:12,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:12,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663112062] [2023-11-12 02:15:12,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:12,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890760724] [2023-11-12 02:15:12,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890760724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:12,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:12,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:12,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745201304] [2023-11-12 02:15:12,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:12,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:12,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:12,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:12,070 INFO L87 Difference]: Start difference. First operand 446 states and 642 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:12,172 INFO L93 Difference]: Finished difference Result 875 states and 1267 transitions. [2023-11-12 02:15:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:15:12,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-12 02:15:12,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:12,176 INFO L225 Difference]: With dead ends: 875 [2023-11-12 02:15:12,176 INFO L226 Difference]: Without dead ends: 433 [2023-11-12 02:15:12,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:12,178 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 165 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:12,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1625 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-12 02:15:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 432. [2023-11-12 02:15:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 409 states have (on average 1.4449877750611246) internal successors, (591), 413 states have internal predecessors, (591), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:12,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 621 transitions. [2023-11-12 02:15:12,198 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 621 transitions. Word has length 66 [2023-11-12 02:15:12,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:12,198 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 621 transitions. [2023-11-12 02:15:12,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:12,199 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 621 transitions. [2023-11-12 02:15:12,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:15:12,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:12,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:12,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:12,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:12,408 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:12,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:12,408 INFO L85 PathProgramCache]: Analyzing trace with hash -30782195, now seen corresponding path program 1 times [2023-11-12 02:15:12,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:12,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751343780] [2023-11-12 02:15:12,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:12,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:12,441 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:12,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738225112] [2023-11-12 02:15:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:12,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:12,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:12,443 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:12,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:15:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:12,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 02:15:12,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:12,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:12,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:12,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:12,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751343780] [2023-11-12 02:15:12,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:12,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738225112] [2023-11-12 02:15:12,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738225112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:12,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:12,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:15:12,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698563655] [2023-11-12 02:15:12,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:12,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:15:12,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:12,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:15:12,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:15:12,909 INFO L87 Difference]: Start difference. First operand 432 states and 621 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:13,341 INFO L93 Difference]: Finished difference Result 909 states and 1304 transitions. [2023-11-12 02:15:13,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:15:13,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-12 02:15:13,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:13,350 INFO L225 Difference]: With dead ends: 909 [2023-11-12 02:15:13,350 INFO L226 Difference]: Without dead ends: 481 [2023-11-12 02:15:13,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:15:13,352 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 27 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:13,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2230 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:15:13,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-12 02:15:13,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 472. [2023-11-12 02:15:13,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 449 states have (on average 1.423162583518931) internal successors, (639), 453 states have internal predecessors, (639), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:13,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 669 transitions. [2023-11-12 02:15:13,373 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 669 transitions. Word has length 66 [2023-11-12 02:15:13,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:13,375 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 669 transitions. [2023-11-12 02:15:13,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:13,375 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 669 transitions. [2023-11-12 02:15:13,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 02:15:13,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:13,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:13,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:13,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:13,591 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:13,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:13,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1975731849, now seen corresponding path program 1 times [2023-11-12 02:15:13,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:13,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457674204] [2023-11-12 02:15:13,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:13,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:13,622 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:13,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483824114] [2023-11-12 02:15:13,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:13,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:13,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:13,624 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:13,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:15:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:14,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:15:14,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:14,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:14,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:14,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457674204] [2023-11-12 02:15:14,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:14,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483824114] [2023-11-12 02:15:14,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483824114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:14,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:14,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:15:14,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355974707] [2023-11-12 02:15:14,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:14,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:15:14,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:14,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:15:14,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:15:14,318 INFO L87 Difference]: Start difference. First operand 472 states and 669 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:14,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:14,944 INFO L93 Difference]: Finished difference Result 958 states and 1362 transitions. [2023-11-12 02:15:14,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:15:14,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-12 02:15:14,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:14,949 INFO L225 Difference]: With dead ends: 958 [2023-11-12 02:15:14,949 INFO L226 Difference]: Without dead ends: 490 [2023-11-12 02:15:14,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:15:14,951 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 47 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:14,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3106 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:15:14,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-11-12 02:15:14,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 482. [2023-11-12 02:15:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 459 states have (on average 1.4270152505446623) internal successors, (655), 463 states have internal predecessors, (655), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 685 transitions. [2023-11-12 02:15:14,970 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 685 transitions. Word has length 67 [2023-11-12 02:15:14,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:14,971 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 685 transitions. [2023-11-12 02:15:14,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:14,971 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 685 transitions. [2023-11-12 02:15:14,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 02:15:14,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:14,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:14,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:15,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:15,180 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:15,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1313790664, now seen corresponding path program 1 times [2023-11-12 02:15:15,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:15,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438538779] [2023-11-12 02:15:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:15,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:15,242 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:15,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587075297] [2023-11-12 02:15:15,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:15,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:15,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:15,248 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:15,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:15:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:16,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:15:16,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:16,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:16,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:16,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:16,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438538779] [2023-11-12 02:15:16,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:16,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587075297] [2023-11-12 02:15:16,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587075297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:16,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:16,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:15:16,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168210845] [2023-11-12 02:15:16,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:16,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:16,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:16,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:16,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:16,389 INFO L87 Difference]: Start difference. First operand 482 states and 685 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:16,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:16,893 INFO L93 Difference]: Finished difference Result 958 states and 1364 transitions. [2023-11-12 02:15:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:15:16,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-12 02:15:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:16,898 INFO L225 Difference]: With dead ends: 958 [2023-11-12 02:15:16,899 INFO L226 Difference]: Without dead ends: 480 [2023-11-12 02:15:16,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:16,903 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 11 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:16,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2584 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:15:16,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-11-12 02:15:16,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2023-11-12 02:15:16,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 456 states have (on average 1.4254385964912282) internal successors, (650), 460 states have internal predecessors, (650), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:16,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 680 transitions. [2023-11-12 02:15:16,921 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 680 transitions. Word has length 68 [2023-11-12 02:15:16,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:16,922 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 680 transitions. [2023-11-12 02:15:16,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:16,922 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 680 transitions. [2023-11-12 02:15:16,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 02:15:16,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:16,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:16,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:17,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:17,131 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:17,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:17,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1853062836, now seen corresponding path program 1 times [2023-11-12 02:15:17,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:17,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304506358] [2023-11-12 02:15:17,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:17,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:17,162 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:17,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57090310] [2023-11-12 02:15:17,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:17,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:17,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:17,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:17,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:15:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:18,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-12 02:15:18,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:18,515 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 02:15:18,602 INFO L322 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2023-11-12 02:15:18,603 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2023-11-12 02:15:19,137 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:15:19,138 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-12 02:15:19,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:19,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:19,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:19,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304506358] [2023-11-12 02:15:19,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:19,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57090310] [2023-11-12 02:15:19,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57090310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:19,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:19,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-12 02:15:19,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089306381] [2023-11-12 02:15:19,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:19,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:15:19,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:19,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:15:19,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:15:19,336 INFO L87 Difference]: Start difference. First operand 479 states and 680 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:22,885 INFO L93 Difference]: Finished difference Result 1335 states and 1911 transitions. [2023-11-12 02:15:22,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:15:22,886 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-12 02:15:22,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:22,893 INFO L225 Difference]: With dead ends: 1335 [2023-11-12 02:15:22,893 INFO L226 Difference]: Without dead ends: 860 [2023-11-12 02:15:22,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:15:22,895 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 1107 mSDsluCounter, 4256 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:22,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 4872 Invalid, 1721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-12 02:15:22,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2023-11-12 02:15:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 517. [2023-11-12 02:15:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 494 states have (on average 1.402834008097166) internal successors, (693), 498 states have internal predecessors, (693), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 723 transitions. [2023-11-12 02:15:22,923 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 723 transitions. Word has length 68 [2023-11-12 02:15:22,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:22,923 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 723 transitions. [2023-11-12 02:15:22,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 723 transitions. [2023-11-12 02:15:22,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 02:15:22,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:22,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:22,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:23,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:23,136 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:23,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:23,137 INFO L85 PathProgramCache]: Analyzing trace with hash 670454676, now seen corresponding path program 1 times [2023-11-12 02:15:23,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:23,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222173665] [2023-11-12 02:15:23,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:23,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:23,174 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:23,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921795025] [2023-11-12 02:15:23,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:23,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:23,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:23,176 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:23,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:15:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:24,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 02:15:24,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:24,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:24,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:24,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222173665] [2023-11-12 02:15:24,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:24,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921795025] [2023-11-12 02:15:24,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921795025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:24,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:24,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:15:24,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657673131] [2023-11-12 02:15:24,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:24,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:15:24,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:24,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:15:24,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:15:24,271 INFO L87 Difference]: Start difference. First operand 517 states and 723 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:24,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:24,923 INFO L93 Difference]: Finished difference Result 529 states and 735 transitions. [2023-11-12 02:15:24,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:15:24,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-12 02:15:24,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:24,927 INFO L225 Difference]: With dead ends: 529 [2023-11-12 02:15:24,927 INFO L226 Difference]: Without dead ends: 527 [2023-11-12 02:15:24,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:15:24,928 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 1075 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:24,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 2993 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 02:15:24,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-11-12 02:15:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2023-11-12 02:15:24,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 501 states have (on average 1.3992015968063871) internal successors, (701), 506 states have internal predecessors, (701), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-12 02:15:24,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 733 transitions. [2023-11-12 02:15:24,954 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 733 transitions. Word has length 68 [2023-11-12 02:15:24,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:24,955 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 733 transitions. [2023-11-12 02:15:24,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:24,955 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 733 transitions. [2023-11-12 02:15:24,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-12 02:15:24,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:24,957 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:24,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:25,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:25,165 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:25,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:25,165 INFO L85 PathProgramCache]: Analyzing trace with hash -262435328, now seen corresponding path program 1 times [2023-11-12 02:15:25,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:25,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180902857] [2023-11-12 02:15:25,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:25,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:25,210 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:25,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18340141] [2023-11-12 02:15:25,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:25,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:25,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:25,212 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:25,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:15:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:25,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:15:25,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:25,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:25,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:25,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180902857] [2023-11-12 02:15:25,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:25,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18340141] [2023-11-12 02:15:25,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18340141] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:25,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:15:25,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2023-11-12 02:15:25,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330151839] [2023-11-12 02:15:25,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:25,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:15:25,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:25,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:15:25,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:15:25,975 INFO L87 Difference]: Start difference. First operand 527 states and 733 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:15:26,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:26,263 INFO L93 Difference]: Finished difference Result 2123 states and 3022 transitions. [2023-11-12 02:15:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:15:26,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2023-11-12 02:15:26,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:26,276 INFO L225 Difference]: With dead ends: 2123 [2023-11-12 02:15:26,277 INFO L226 Difference]: Without dead ends: 1638 [2023-11-12 02:15:26,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:15:26,279 INFO L413 NwaCegarLoop]: 1615 mSDtfsCounter, 2757 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2757 SdHoareTripleChecker+Valid, 3559 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:26,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2757 Valid, 3559 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:15:26,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2023-11-12 02:15:26,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1392. [2023-11-12 02:15:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1342 states have (on average 1.4269746646795827) internal successors, (1915), 1350 states have internal predecessors, (1915), 33 states have call successors, (33), 13 states have call predecessors, (33), 13 states have return successors, (35), 28 states have call predecessors, (35), 33 states have call successors, (35) [2023-11-12 02:15:26,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1983 transitions. [2023-11-12 02:15:26,358 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1983 transitions. Word has length 83 [2023-11-12 02:15:26,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:26,358 INFO L495 AbstractCegarLoop]: Abstraction has 1392 states and 1983 transitions. [2023-11-12 02:15:26,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:15:26,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1983 transitions. [2023-11-12 02:15:26,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 02:15:26,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:26,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:26,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:26,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:15:26,568 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:26,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:26,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2076242331, now seen corresponding path program 1 times [2023-11-12 02:15:26,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:26,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636825059] [2023-11-12 02:15:26,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:26,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:26,618 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:26,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129989880] [2023-11-12 02:15:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:26,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:26,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:26,621 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:26,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:15:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:27,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:15:27,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:27,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:27,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:27,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636825059] [2023-11-12 02:15:27,013 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:27,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129989880] [2023-11-12 02:15:27,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129989880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:27,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:27,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:27,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377541854] [2023-11-12 02:15:27,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:27,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:27,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:27,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:27,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:27,016 INFO L87 Difference]: Start difference. First operand 1392 states and 1983 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:27,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:27,082 INFO L93 Difference]: Finished difference Result 2745 states and 3925 transitions. [2023-11-12 02:15:27,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:27,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-11-12 02:15:27,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:27,093 INFO L225 Difference]: With dead ends: 2745 [2023-11-12 02:15:27,093 INFO L226 Difference]: Without dead ends: 1395 [2023-11-12 02:15:27,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:27,096 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 0 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:27,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1219 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:27,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2023-11-12 02:15:27,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1395. [2023-11-12 02:15:27,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1345 states have (on average 1.4260223048327139) internal successors, (1918), 1353 states have internal predecessors, (1918), 33 states have call successors, (33), 13 states have call predecessors, (33), 13 states have return successors, (35), 28 states have call predecessors, (35), 33 states have call successors, (35) [2023-11-12 02:15:27,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1986 transitions. [2023-11-12 02:15:27,219 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1986 transitions. Word has length 81 [2023-11-12 02:15:27,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:27,220 INFO L495 AbstractCegarLoop]: Abstraction has 1395 states and 1986 transitions. [2023-11-12 02:15:27,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:27,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1986 transitions. [2023-11-12 02:15:27,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 02:15:27,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:27,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:27,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:27,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:15:27,430 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:27,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:27,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1825697955, now seen corresponding path program 1 times [2023-11-12 02:15:27,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:27,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110357123] [2023-11-12 02:15:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:27,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:27,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:27,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347844099] [2023-11-12 02:15:27,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:27,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:27,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:27,486 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:27,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 02:15:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:27,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:15:27,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:28,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:28,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:28,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:28,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110357123] [2023-11-12 02:15:28,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:28,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347844099] [2023-11-12 02:15:28,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347844099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:28,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:28,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:28,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076467722] [2023-11-12 02:15:28,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:28,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:28,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:28,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:28,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:28,103 INFO L87 Difference]: Start difference. First operand 1395 states and 1986 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:28,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:28,415 INFO L93 Difference]: Finished difference Result 3215 states and 4657 transitions. [2023-11-12 02:15:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:28,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-11-12 02:15:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:28,428 INFO L225 Difference]: With dead ends: 3215 [2023-11-12 02:15:28,428 INFO L226 Difference]: Without dead ends: 1862 [2023-11-12 02:15:28,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:28,432 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 390 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:28,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1395 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:15:28,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2023-11-12 02:15:28,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1378. [2023-11-12 02:15:28,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1336 states have (on average 1.4520958083832336) internal successors, (1940), 1342 states have internal predecessors, (1940), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (29), 25 states have call predecessors, (29), 28 states have call successors, (29) [2023-11-12 02:15:28,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1997 transitions. [2023-11-12 02:15:28,506 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1997 transitions. Word has length 81 [2023-11-12 02:15:28,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:28,507 INFO L495 AbstractCegarLoop]: Abstraction has 1378 states and 1997 transitions. [2023-11-12 02:15:28,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:28,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1997 transitions. [2023-11-12 02:15:28,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 02:15:28,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:28,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:28,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:28,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:15:28,719 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:28,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:28,720 INFO L85 PathProgramCache]: Analyzing trace with hash 931077370, now seen corresponding path program 1 times [2023-11-12 02:15:28,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:28,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619243766] [2023-11-12 02:15:28,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:28,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:28,775 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:28,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308010683] [2023-11-12 02:15:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:28,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:28,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:28,777 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:28,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-12 02:15:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:29,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 02:15:29,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:15:29,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:29,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:29,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619243766] [2023-11-12 02:15:29,387 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:29,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308010683] [2023-11-12 02:15:29,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308010683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:29,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:29,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:29,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080685012] [2023-11-12 02:15:29,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:29,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:29,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:29,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:29,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:29,390 INFO L87 Difference]: Start difference. First operand 1378 states and 1997 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:15:29,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:29,561 INFO L93 Difference]: Finished difference Result 2561 states and 3725 transitions. [2023-11-12 02:15:29,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:15:29,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 119 [2023-11-12 02:15:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:29,570 INFO L225 Difference]: With dead ends: 2561 [2023-11-12 02:15:29,570 INFO L226 Difference]: Without dead ends: 1378 [2023-11-12 02:15:29,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:15:29,573 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 128 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:29,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 2328 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:29,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2023-11-12 02:15:29,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1378. [2023-11-12 02:15:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1336 states have (on average 1.4520958083832336) internal successors, (1940), 1342 states have internal predecessors, (1940), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-12 02:15:29,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1996 transitions. [2023-11-12 02:15:29,640 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1996 transitions. Word has length 119 [2023-11-12 02:15:29,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:29,641 INFO L495 AbstractCegarLoop]: Abstraction has 1378 states and 1996 transitions. [2023-11-12 02:15:29,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:15:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1996 transitions. [2023-11-12 02:15:29,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-12 02:15:29,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:29,643 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:29,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:29,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-12 02:15:29,857 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:29,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:29,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1605107756, now seen corresponding path program 1 times [2023-11-12 02:15:29,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:29,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437081704] [2023-11-12 02:15:29,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:29,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:29,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:29,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377801659] [2023-11-12 02:15:29,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:29,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:29,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:29,913 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:29,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-12 02:15:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:30,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:15:30,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:30,382 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:15:30,390 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-12 02:15:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:15:30,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:30,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:30,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437081704] [2023-11-12 02:15:30,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:30,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377801659] [2023-11-12 02:15:30,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377801659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:30,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:30,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:30,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196298137] [2023-11-12 02:15:30,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:30,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:30,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:30,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:30,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:30,400 INFO L87 Difference]: Start difference. First operand 1378 states and 1996 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-12 02:15:30,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:30,863 INFO L93 Difference]: Finished difference Result 1847 states and 2683 transitions. [2023-11-12 02:15:30,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:15:30,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 124 [2023-11-12 02:15:30,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:30,875 INFO L225 Difference]: With dead ends: 1847 [2023-11-12 02:15:30,875 INFO L226 Difference]: Without dead ends: 1740 [2023-11-12 02:15:30,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:30,877 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 249 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:30,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1734 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:15:30,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2023-11-12 02:15:30,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1382. [2023-11-12 02:15:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1340 states have (on average 1.4507462686567165) internal successors, (1944), 1346 states have internal predecessors, (1944), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-12 02:15:30,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 2000 transitions. [2023-11-12 02:15:30,943 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 2000 transitions. Word has length 124 [2023-11-12 02:15:30,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:30,944 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 2000 transitions. [2023-11-12 02:15:30,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-12 02:15:30,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 2000 transitions. [2023-11-12 02:15:30,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-12 02:15:30,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:30,947 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:30,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-12 02:15:31,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-12 02:15:31,155 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:31,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash -65911987, now seen corresponding path program 1 times [2023-11-12 02:15:31,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:31,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810941324] [2023-11-12 02:15:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:31,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:31,219 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:31,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454725324] [2023-11-12 02:15:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:31,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:31,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:31,221 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:31,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-12 02:15:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-12 02:15:31,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:32,001 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 02:15:32,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:32,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:32,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810941324] [2023-11-12 02:15:32,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:32,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454725324] [2023-11-12 02:15:32,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454725324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:32,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:32,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:15:32,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770524118] [2023-11-12 02:15:32,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:32,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:15:32,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:32,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:15:32,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:15:32,005 INFO L87 Difference]: Start difference. First operand 1382 states and 2000 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:15:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:32,204 INFO L93 Difference]: Finished difference Result 2577 states and 3744 transitions. [2023-11-12 02:15:32,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:15:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 135 [2023-11-12 02:15:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:32,213 INFO L225 Difference]: With dead ends: 2577 [2023-11-12 02:15:32,214 INFO L226 Difference]: Without dead ends: 1387 [2023-11-12 02:15:32,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:15:32,217 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 16 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:32,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4157 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:32,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2023-11-12 02:15:32,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1387. [2023-11-12 02:15:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1344 states have (on average 1.4501488095238095) internal successors, (1949), 1351 states have internal predecessors, (1949), 28 states have call successors, (28), 10 states have call predecessors, (28), 11 states have return successors, (29), 25 states have call predecessors, (29), 28 states have call successors, (29) [2023-11-12 02:15:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2006 transitions. [2023-11-12 02:15:32,319 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2006 transitions. Word has length 135 [2023-11-12 02:15:32,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:32,319 INFO L495 AbstractCegarLoop]: Abstraction has 1387 states and 2006 transitions. [2023-11-12 02:15:32,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:15:32,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2006 transitions. [2023-11-12 02:15:32,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-12 02:15:32,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:32,322 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:32,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:32,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-12 02:15:32,535 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:32,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:32,535 INFO L85 PathProgramCache]: Analyzing trace with hash 157122231, now seen corresponding path program 1 times [2023-11-12 02:15:32,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:32,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299939702] [2023-11-12 02:15:32,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:32,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:32,600 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:32,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274497135] [2023-11-12 02:15:32,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:32,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:32,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:32,602 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:32,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-12 02:15:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:33,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 169 conjunts are in the unsatisfiable core [2023-11-12 02:15:33,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:33,479 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 02:15:33,499 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-12 02:15:33,499 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-11-12 02:15:33,574 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-12 02:15:33,575 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2023-11-12 02:15:33,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:33,742 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-11-12 02:15:33,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:33,750 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-12 02:15:35,037 INFO L322 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2023-11-12 02:15:35,037 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 45 [2023-11-12 02:15:35,149 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:15:35,154 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:15:35,338 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2023-11-12 02:15:36,109 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:15:36,110 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 61 [2023-11-12 02:15:36,128 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-12 02:15:36,313 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:15:36,314 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2370 treesize of output 1946 [2023-11-12 02:15:36,347 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:15:36,348 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2309 treesize of output 1885 [2023-11-12 02:15:36,387 INFO L322 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2023-11-12 02:15:36,387 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1813 treesize of output 1319 [2023-11-12 02:15:36,403 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 22 [2023-11-12 02:15:36,413 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2023-11-12 02:15:36,431 INFO L322 Elim1Store]: treesize reduction 27, result has 15.6 percent of original size [2023-11-12 02:15:36,432 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 60 [2023-11-12 02:15:36,455 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2023-11-12 02:15:36,484 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:15:36,485 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1528 treesize of output 1 [2023-11-12 02:15:36,527 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:15:36,528 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2059 treesize of output 1701 [2023-11-12 02:15:36,561 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:15:36,562 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1998 treesize of output 1640 [2023-11-12 02:15:36,628 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:15:36,629 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2199 treesize of output 1764 [2023-11-12 02:15:36,679 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:15:36,679 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3790 treesize of output 2942 [2023-11-12 02:15:36,718 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:15:36,719 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3886 treesize of output 3010 [2023-11-12 02:15:36,769 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:15:36,770 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4564 treesize of output 3530 [2023-11-12 02:15:36,819 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:15:36,820 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4235 treesize of output 3265 [2023-11-12 02:15:36,851 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:15:36,852 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2498 treesize of output 1981 [2023-11-12 02:15:36,900 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:15:36,901 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2370 treesize of output 1946 [2023-11-12 02:15:36,931 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:15:36,932 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2309 treesize of output 1885 [2023-11-12 02:15:36,963 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:15:36,963 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1813 treesize of output 1 [2023-11-12 02:15:36,998 INFO L322 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-12 02:15:36,999 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2463 treesize of output 1958 [2023-11-12 02:15:37,046 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:15:37,047 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4232 treesize of output 3274 [2023-11-12 02:15:37,087 INFO L322 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-12 02:15:37,088 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4525 treesize of output 3503 [2023-11-12 02:15:37,119 INFO L322 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-12 02:15:37,119 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1744 treesize of output 1 [2023-11-12 02:15:37,155 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:15:37,156 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2301 treesize of output 1887 [2023-11-12 02:15:37,185 INFO L322 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-12 02:15:37,186 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2240 treesize of output 1826 [2023-11-12 02:15:37,521 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-12 02:15:37,528 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 40 [2023-11-12 02:15:37,570 INFO L322 Elim1Store]: treesize reduction 8, result has 80.5 percent of original size [2023-11-12 02:15:37,570 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 58 [2023-11-12 02:15:37,764 INFO L322 Elim1Store]: treesize reduction 334, result has 7.5 percent of original size [2023-11-12 02:15:37,764 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 550 treesize of output 363 [2023-11-12 02:15:37,806 INFO L322 Elim1Store]: treesize reduction 106, result has 4.5 percent of original size [2023-11-12 02:15:37,806 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 283 treesize of output 218 [2023-11-12 02:15:37,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:37,816 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 109 [2023-11-12 02:15:37,822 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-11-12 02:15:37,839 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2023-11-12 02:15:37,856 INFO L322 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-12 02:15:37,856 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 364 treesize of output 262 [2023-11-12 02:15:37,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:38,297 INFO L322 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2023-11-12 02:15:38,298 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 168 treesize of output 87 [2023-11-12 02:15:38,330 INFO L322 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2023-11-12 02:15:38,331 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 111 [2023-11-12 02:15:38,746 INFO L322 Elim1Store]: treesize reduction 194, result has 11.8 percent of original size [2023-11-12 02:15:38,747 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 214 treesize of output 139 [2023-11-12 02:15:38,793 INFO L322 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2023-11-12 02:15:38,794 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 167 treesize of output 140 [2023-11-12 02:15:39,415 INFO L322 Elim1Store]: treesize reduction 120, result has 17.8 percent of original size [2023-11-12 02:15:39,416 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 367 treesize of output 191 [2023-11-12 02:15:39,458 INFO L322 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2023-11-12 02:15:39,461 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 321 treesize of output 239 [2023-11-12 02:15:39,476 INFO L322 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-11-12 02:15:39,476 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 238 treesize of output 117 [2023-11-12 02:15:39,489 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 52 [2023-11-12 02:15:39,498 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2023-11-12 02:15:39,502 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2023-11-12 02:15:39,561 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:39,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:39,695 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse12 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse10 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse12)) (.cse11 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse12))) (let ((.cse0 (mod |c_ULTIMATE.start_main_~_ha_bkt~0#1| 4294967296)) (.cse3 (select (select |c_#memory_$Pointer$.base| .cse10) .cse11))) (let ((.cse5 (select |c_#memory_$Pointer$.base| .cse3)) (.cse1 (select |c_#memory_$Pointer$.offset| .cse3)) (.cse6 (* .cse0 12)) (.cse7 (select (select |c_#memory_$Pointer$.offset| .cse10) .cse11))) (and (or (< .cse0 2147483648) (let ((.cse2 (+ .cse6 .cse7 (- 51539607548))) (.cse4 (+ (- 51539607552) .cse6 .cse7))) (and (forall ((v_ArrVal_2754 (Array Int Int))) (or (not (= (store .cse1 .cse2 (select v_ArrVal_2754 .cse2)) v_ArrVal_2754)) (forall ((v_ArrVal_2755 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_2754) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2755) .cse3) .cse4) 0)))) (forall ((v_ArrVal_2758 (Array Int Int)) (v_ArrVal_2757 Int)) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse3 (store .cse5 .cse2 v_ArrVal_2757)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2758) .cse3) .cse4) 0))))) (or (let ((.cse9 (+ .cse6 .cse7)) (.cse8 (+ .cse6 .cse7 4))) (and (forall ((v_ArrVal_2758 (Array Int Int)) (v_ArrVal_2757 Int)) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse3 (store .cse5 .cse8 v_ArrVal_2757)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2758) .cse3) .cse9) 0)) (forall ((v_ArrVal_2754 (Array Int Int))) (or (forall ((v_ArrVal_2755 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_2754) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2755) .cse3) .cse9) 0)) (not (= (store .cse1 .cse8 (select v_ArrVal_2754 .cse8)) v_ArrVal_2754)))))) (< 2147483647 .cse0))))))) is different from false [2023-11-12 02:15:39,818 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse12 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse10 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse12)) (.cse11 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse12))) (let ((.cse0 (mod |c_ULTIMATE.start_main_#t~nondet117#1| 4294967296)) (.cse1 (select (select |c_#memory_$Pointer$.base| .cse10) .cse11))) (let ((.cse2 (select |c_#memory_$Pointer$.base| .cse1)) (.cse5 (select |c_#memory_$Pointer$.offset| .cse1)) (.cse6 (select (select |c_#memory_$Pointer$.offset| .cse10) .cse11)) (.cse7 (* .cse0 12))) (and (or (< 2147483647 .cse0) (let ((.cse4 (+ .cse6 .cse7)) (.cse3 (+ .cse6 4 .cse7))) (and (forall ((v_ArrVal_2758 (Array Int Int)) (v_ArrVal_2757 Int)) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse1 (store .cse2 .cse3 v_ArrVal_2757)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2758) .cse1) .cse4) 0)) (forall ((v_ArrVal_2754 (Array Int Int))) (or (forall ((v_ArrVal_2755 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_2754) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2755) .cse1) .cse4) 0)) (not (= (store .cse5 .cse3 (select v_ArrVal_2754 .cse3)) v_ArrVal_2754))))))) (or (< .cse0 2147483648) (let ((.cse8 (+ .cse6 (- 51539607548) .cse7)) (.cse9 (+ (- 51539607552) .cse6 .cse7))) (and (forall ((v_ArrVal_2758 (Array Int Int)) (v_ArrVal_2757 Int)) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse1 (store .cse2 .cse8 v_ArrVal_2757)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2758) .cse1) .cse9) 0)) (forall ((v_ArrVal_2754 (Array Int Int))) (or (not (= v_ArrVal_2754 (store .cse5 .cse8 (select v_ArrVal_2754 .cse8)))) (forall ((v_ArrVal_2755 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_2754) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2755) .cse1) .cse9) 0)))))))))))) is different from false [2023-11-12 02:15:39,844 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse5)) (.cse4 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse5))) (let ((.cse1 (select (select |c_#memory_$Pointer$.offset| .cse3) .cse4))) (let ((.cse2 (+ .cse1 4)) (.cse0 (select (select |c_#memory_$Pointer$.base| .cse3) .cse4))) (and (forall ((v_ArrVal_2754 (Array Int Int))) (or (forall ((v_ArrVal_2755 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_2754) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2755) .cse0) .cse1) 0)) (not (= v_ArrVal_2754 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse2 (select v_ArrVal_2754 .cse2)))))) (forall ((v_ArrVal_2758 (Array Int Int)) (v_ArrVal_2757 Int)) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) .cse2 v_ArrVal_2757)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2758) .cse0) .cse1) 0))))))) is different from false [2023-11-12 02:15:39,897 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse8 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse7))) (let ((.cse9 (select |c_#memory_$Pointer$.base| .cse8)) (.cse11 (select |c_#memory_$Pointer$.offset| .cse8)) (.cse10 (+ 12 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse7)))) (and (forall ((v_ArrVal_2754 (Array Int Int)) (v_ArrVal_2751 Int) (v_ArrVal_2750 Int)) (let ((.cse0 (store |c_#memory_$Pointer$.offset| .cse8 (store .cse11 .cse10 v_ArrVal_2750))) (.cse6 (store |c_#memory_$Pointer$.base| .cse8 (store .cse9 .cse10 v_ArrVal_2751)))) (let ((.cse4 (select (select .cse6 |c_ULTIMATE.start_main_~users~0#1.base|) .cse7)) (.cse5 (select (select .cse0 |c_ULTIMATE.start_main_~users~0#1.base|) .cse7))) (let ((.cse1 (select (select .cse6 .cse4) .cse5)) (.cse3 (select (select .cse0 .cse4) .cse5))) (or (not (= (let ((.cse2 (+ .cse3 4))) (store (select .cse0 .cse1) .cse2 (select v_ArrVal_2754 .cse2))) v_ArrVal_2754)) (forall ((v_ArrVal_2755 (Array Int Int))) (= (select (select (store (store .cse0 .cse1 v_ArrVal_2754) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2755) .cse1) .cse3) 0))))))) (forall ((v_ArrVal_2758 (Array Int Int)) (v_ArrVal_2751 Int) (v_ArrVal_2750 Int) (v_ArrVal_2757 Int)) (= (let ((.cse17 (store |c_#memory_$Pointer$.offset| .cse8 (store .cse11 .cse10 v_ArrVal_2750))) (.cse12 (store |c_#memory_$Pointer$.base| .cse8 (store .cse9 .cse10 v_ArrVal_2751)))) (let ((.cse15 (select (select .cse12 |c_ULTIMATE.start_main_~users~0#1.base|) .cse7)) (.cse16 (select (select .cse17 |c_ULTIMATE.start_main_~users~0#1.base|) .cse7))) (let ((.cse14 (select (select .cse17 .cse15) .cse16))) (select (let ((.cse13 (select (select .cse12 .cse15) .cse16))) (select (store (store .cse12 .cse13 (store (select .cse12 .cse13) (+ .cse14 4) v_ArrVal_2757)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2758) .cse13)) .cse14)))) 0)))))) is different from false [2023-11-12 02:15:39,941 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse8 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))) (let ((.cse9 (select |c_#memory_$Pointer$.base| .cse8)) (.cse11 (select |c_#memory_$Pointer$.offset| .cse8)) (.cse10 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse7) 12))) (and (forall ((v_ArrVal_2754 (Array Int Int)) (v_ArrVal_2751 Int) (v_ArrVal_2750 Int)) (let ((.cse0 (store |c_#memory_$Pointer$.offset| .cse8 (store .cse11 .cse10 v_ArrVal_2750))) (.cse6 (store |c_#memory_$Pointer$.base| .cse8 (store .cse9 .cse10 v_ArrVal_2751)))) (let ((.cse4 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7)) (.cse5 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))) (let ((.cse1 (select (select .cse6 .cse4) .cse5)) (.cse3 (select (select .cse0 .cse4) .cse5))) (or (not (= v_ArrVal_2754 (let ((.cse2 (+ .cse3 4))) (store (select .cse0 .cse1) .cse2 (select v_ArrVal_2754 .cse2))))) (forall ((v_ArrVal_2755 (Array Int Int))) (= (select (select (store (store .cse0 .cse1 v_ArrVal_2754) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2755) .cse1) .cse3) 0))))))) (forall ((v_ArrVal_2758 (Array Int Int)) (v_ArrVal_2751 Int) (v_ArrVal_2750 Int) (v_ArrVal_2757 Int)) (= (let ((.cse17 (store |c_#memory_$Pointer$.offset| .cse8 (store .cse11 .cse10 v_ArrVal_2750))) (.cse12 (store |c_#memory_$Pointer$.base| .cse8 (store .cse9 .cse10 v_ArrVal_2751)))) (let ((.cse15 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7)) (.cse16 (select (select .cse17 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))) (let ((.cse14 (select (select .cse17 .cse15) .cse16))) (select (let ((.cse13 (select (select .cse12 .cse15) .cse16))) (select (store (store .cse12 .cse13 (store (select .cse12 .cse13) (+ .cse14 4) v_ArrVal_2757)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2758) .cse13)) .cse14)))) 0)))))) is different from false [2023-11-12 02:15:40,181 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem103#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem103#1.base|) |c_ULTIMATE.start_main_#t~mem103#1.offset| 0))) (.cse7 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse12 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem103#1.base|) |c_ULTIMATE.start_main_#t~mem103#1.offset| 0))) (.cse9 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))) (let ((.cse10 (select .cse8 .cse9)) (.cse13 (select .cse12 .cse9)) (.cse11 (+ (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7) 12))) (and (forall ((v_ArrVal_2754 (Array Int Int)) (v_ArrVal_2751 Int) (v_ArrVal_2750 Int)) (let ((.cse0 (store .cse12 .cse9 (store .cse13 .cse11 v_ArrVal_2750))) (.cse6 (store .cse8 .cse9 (store .cse10 .cse11 v_ArrVal_2751)))) (let ((.cse4 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7)) (.cse5 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))) (let ((.cse1 (select (select .cse6 .cse4) .cse5)) (.cse2 (select (select .cse0 .cse4) .cse5))) (or (forall ((v_ArrVal_2755 (Array Int Int))) (= (select (select (store (store .cse0 .cse1 v_ArrVal_2754) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2755) .cse1) .cse2) 0)) (not (= (let ((.cse3 (+ .cse2 4))) (store (select .cse0 .cse1) .cse3 (select v_ArrVal_2754 .cse3))) v_ArrVal_2754))))))) (forall ((v_ArrVal_2758 (Array Int Int)) (v_ArrVal_2751 Int) (v_ArrVal_2750 Int) (v_ArrVal_2757 Int)) (= (let ((.cse19 (store .cse12 .cse9 (store .cse13 .cse11 v_ArrVal_2750))) (.cse14 (store .cse8 .cse9 (store .cse10 .cse11 v_ArrVal_2751)))) (let ((.cse17 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7)) (.cse18 (select (select .cse19 |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))) (let ((.cse16 (select (select .cse19 .cse17) .cse18))) (select (let ((.cse15 (select (select .cse14 .cse17) .cse18))) (select (store (store .cse14 .cse15 (store (select .cse14 .cse15) (+ .cse16 4) v_ArrVal_2757)) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_2758) .cse15)) .cse16)))) 0)))))) is different from false [2023-11-12 02:15:40,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:40,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299939702] [2023-11-12 02:15:40,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:40,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274497135] [2023-11-12 02:15:40,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274497135] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:40,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:15:40,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2023-11-12 02:15:40,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348029377] [2023-11-12 02:15:40,190 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:15:40,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-12 02:15:40,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:40,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-12 02:15:40,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1087, Unknown=6, NotChecked=426, Total=1640 [2023-11-12 02:15:40,192 INFO L87 Difference]: Start difference. First operand 1387 states and 2006 transitions. Second operand has 35 states, 32 states have (on average 3.8125) internal successors, (122), 26 states have internal predecessors, (122), 6 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-12 02:15:48,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:48,335 INFO L93 Difference]: Finished difference Result 3064 states and 4435 transitions. [2023-11-12 02:15:48,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-12 02:15:48,336 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 32 states have (on average 3.8125) internal successors, (122), 26 states have internal predecessors, (122), 6 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 137 [2023-11-12 02:15:48,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:48,350 INFO L225 Difference]: With dead ends: 3064 [2023-11-12 02:15:48,350 INFO L226 Difference]: Without dead ends: 1873 [2023-11-12 02:15:48,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1556 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=494, Invalid=5224, Unknown=6, NotChecked=918, Total=6642 [2023-11-12 02:15:48,357 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 2387 mSDsluCounter, 11823 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 12395 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:48,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2412 Valid, 12395 Invalid, 3137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-12 02:15:48,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2023-11-12 02:15:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1635. [2023-11-12 02:15:48,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1578 states have (on average 1.4359949302915083) internal successors, (2266), 1588 states have internal predecessors, (2266), 36 states have call successors, (36), 13 states have call predecessors, (36), 17 states have return successors, (43), 33 states have call predecessors, (43), 36 states have call successors, (43) [2023-11-12 02:15:48,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2345 transitions. [2023-11-12 02:15:48,465 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2345 transitions. Word has length 137 [2023-11-12 02:15:48,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:48,466 INFO L495 AbstractCegarLoop]: Abstraction has 1635 states and 2345 transitions. [2023-11-12 02:15:48,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 32 states have (on average 3.8125) internal successors, (122), 26 states have internal predecessors, (122), 6 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-12 02:15:48,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2345 transitions. [2023-11-12 02:15:48,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-12 02:15:48,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:48,469 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:48,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:48,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 02:15:48,683 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 02:15:48,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:48,683 INFO L85 PathProgramCache]: Analyzing trace with hash 858722105, now seen corresponding path program 1 times [2023-11-12 02:15:48,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:48,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811788780] [2023-11-12 02:15:48,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:48,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:48,748 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:48,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991074493] [2023-11-12 02:15:48,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:48,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:48,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:48,751 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:48,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d53efc2-6492-4354-b6e8-6dce10b9d5cc/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-12 02:15:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:49,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-12 02:15:49,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:15:49,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:49,783 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 02:15:49,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:49,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811788780] [2023-11-12 02:15:49,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:49,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991074493] [2023-11-12 02:15:49,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991074493] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:15:49,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:15:49,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2023-11-12 02:15:49,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76136378] [2023-11-12 02:15:49,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:15:49,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:15:49,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:49,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:15:49,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:15:49,786 INFO L87 Difference]: Start difference. First operand 1635 states and 2345 transitions. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 3 states have call successors, (13), 2 states have call predecessors, (13), 6 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-12 02:15:50,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:50,183 INFO L93 Difference]: Finished difference Result 3082 states and 4439 transitions. [2023-11-12 02:15:50,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-12 02:15:50,184 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 3 states have call successors, (13), 2 states have call predecessors, (13), 6 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 137 [2023-11-12 02:15:50,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:50,194 INFO L225 Difference]: With dead ends: 3082 [2023-11-12 02:15:50,194 INFO L226 Difference]: Without dead ends: 1641 [2023-11-12 02:15:50,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:15:50,198 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 22 mSDsluCounter, 4154 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4752 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:50,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4752 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:15:50,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states.