./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 41a06dba17575946a131560ceaa3b40649c8b00d9b30bc4696c27d89715c52b3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:57:51,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:57:52,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 21:57:52,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:57:52,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:57:52,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:57:52,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:57:52,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:57:52,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:57:52,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:57:52,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:57:52,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:57:52,152 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:57:52,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:57:52,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:57:52,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:57:52,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:57:52,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:57:52,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:57:52,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:57:52,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:57:52,158 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:57:52,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:57:52,160 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:57:52,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:57:52,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:57:52,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:57:52,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:57:52,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:57:52,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:57:52,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:57:52,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:57:52,165 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:57:52,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:57:52,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:57:52,167 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:57:52,168 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_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41a06dba17575946a131560ceaa3b40649c8b00d9b30bc4696c27d89715c52b3 [2023-11-06 21:57:52,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:57:52,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:57:52,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:57:52,590 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:57:52,591 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:57:52,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2023-11-06 21:57:55,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:57:56,637 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:57:56,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2023-11-06 21:57:56,687 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/data/fc8de363d/2e968d74099b462c8d8820cde6ab420c/FLAG4a95a7b80 [2023-11-06 21:57:56,710 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/data/fc8de363d/2e968d74099b462c8d8820cde6ab420c [2023-11-06 21:57:56,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:57:56,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:57:56,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:57:56,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:57:56,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:57:56,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:56" (1/1) ... [2023-11-06 21:57:56,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a014e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:56, skipping insertion in model container [2023-11-06 21:57:56,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:56" (1/1) ... [2023-11-06 21:57:56,994 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:57:59,329 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_fb6cfce3-d601-4678-b302-659cfbbea18c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[263943,263956] [2023-11-06 21:57:59,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:57:59,552 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:57:59,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3725-3726] [2023-11-06 21:57:59,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3737-3738] [2023-11-06 21:57:59,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3741-3742] [2023-11-06 21:57:59,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3745-3746] [2023-11-06 21:57:59,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3749-3750] [2023-11-06 21:58:00,095 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_fb6cfce3-d601-4678-b302-659cfbbea18c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[263943,263956] [2023-11-06 21:58:00,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:00,234 WARN L672 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:00,235 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:00,244 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:00,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00 WrapperNode [2023-11-06 21:58:00,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:00,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:00,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:00,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:00,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:00,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:00,583 INFO L138 Inliner]: procedures = 267, calls = 2900, calls flagged for inlining = 122, calls inlined = 113, statements flattened = 6785 [2023-11-06 21:58:00,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:00,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:00,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:00,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:00,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:00,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:00,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:00,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:00,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:01,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:01,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:01,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:01,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:01,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:01,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:01,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:01,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (1/1) ... [2023-11-06 21:58:01,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:01,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:01,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:01,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6cfce3-d601-4678-b302-659cfbbea18c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-06 21:58:01,234 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-06 21:58:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-06 21:58:01,235 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-06 21:58:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-06 21:58:01,235 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-06 21:58:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2023-11-06 21:58:01,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2023-11-06 21:58:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 21:58:01,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 21:58:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-06 21:58:01,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-06 21:58:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2023-11-06 21:58:01,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2023-11-06 21:58:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 21:58:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 21:58:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-06 21:58:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-06 21:58:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2023-11-06 21:58:01,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2023-11-06 21:58:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-06 21:58:01,242 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-06 21:58:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-06 21:58:01,242 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-06 21:58:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2023-11-06 21:58:01,243 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2023-11-06 21:58:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-06 21:58:01,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-06 21:58:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-06 21:58:01,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-06 21:58:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 21:58:01,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 21:58:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-06 21:58:01,246 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-06 21:58:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:58:01,247 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:58:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2023-11-06 21:58:01,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2023-11-06 21:58:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2023-11-06 21:58:01,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2023-11-06 21:58:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:58:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-06 21:58:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-06 21:58:01,248 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-06 21:58:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-06 21:58:01,310 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-06 21:58:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-11-06 21:58:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-11-06 21:58:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2023-11-06 21:58:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2023-11-06 21:58:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:58:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-06 21:58:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-06 21:58:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-06 21:58:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-11-06 21:58:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-11-06 21:58:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2023-11-06 21:58:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2023-11-06 21:58:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:58:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-11-06 21:58:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-11-06 21:58:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 21:58:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2023-11-06 21:58:01,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2023-11-06 21:58:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 21:58:01,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 21:58:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-06 21:58:01,313 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-06 21:58:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-06 21:58:01,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-06 21:58:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-06 21:58:01,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-06 21:58:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-06 21:58:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-06 21:58:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2023-11-06 21:58:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2023-11-06 21:58:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2023-11-06 21:58:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2023-11-06 21:58:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-06 21:58:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-06 21:58:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_45 [2023-11-06 21:58:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_45 [2023-11-06 21:58:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_44 [2023-11-06 21:58:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_44 [2023-11-06 21:58:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-06 21:58:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-06 21:58:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_43 [2023-11-06 21:58:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_43 [2023-11-06 21:58:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-06 21:58:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-06 21:58:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-11-06 21:58:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-11-06 21:58:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2023-11-06 21:58:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2023-11-06 21:58:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2023-11-06 21:58:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2023-11-06 21:58:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2023-11-06 21:58:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2023-11-06 21:58:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2023-11-06 21:58:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2023-11-06 21:58:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2023-11-06 21:58:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2023-11-06 21:58:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 21:58:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-06 21:58:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-06 21:58:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2023-11-06 21:58:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2023-11-06 21:58:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-06 21:58:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-06 21:58:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-06 21:58:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-06 21:58:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-06 21:58:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-06 21:58:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:58:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-06 21:58:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-06 21:58:01,322 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2023-11-06 21:58:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2023-11-06 21:58:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2023-11-06 21:58:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2023-11-06 21:58:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2023-11-06 21:58:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2023-11-06 21:58:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2023-11-06 21:58:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2023-11-06 21:58:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-06 21:58:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-06 21:58:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-06 21:58:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-06 21:58:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2023-11-06 21:58:01,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2023-11-06 21:58:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-06 21:58:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-06 21:58:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:58:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-06 21:58:01,327 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-06 21:58:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 21:58:01,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 21:58:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2023-11-06 21:58:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2023-11-06 21:58:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-06 21:58:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-06 21:58:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2023-11-06 21:58:01,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2023-11-06 21:58:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2023-11-06 21:58:01,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2023-11-06 21:58:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:58:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2023-11-06 21:58:01,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2023-11-06 21:58:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-06 21:58:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-06 21:58:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-06 21:58:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-06 21:58:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:58:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-06 21:58:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-06 21:58:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:58:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2023-11-06 21:58:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2023-11-06 21:58:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:58:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:58:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2023-11-06 21:58:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2023-11-06 21:58:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-06 21:58:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-06 21:58:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2023-11-06 21:58:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2023-11-06 21:58:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-11-06 21:58:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-11-06 21:58:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-06 21:58:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-06 21:58:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-06 21:58:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-06 21:58:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-06 21:58:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-06 21:58:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-06 21:58:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-06 21:58:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2023-11-06 21:58:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2023-11-06 21:58:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2023-11-06 21:58:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2023-11-06 21:58:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:58:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:01,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:02,201 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:02,205 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:03,398 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 21:58:19,301 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:19,333 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:19,333 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:58:19,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:19 BoogieIcfgContainer [2023-11-06 21:58:19,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:19,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:19,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:19,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:19,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:57:56" (1/3) ... [2023-11-06 21:58:19,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90eb031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:19, skipping insertion in model container [2023-11-06 21:58:19,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:00" (2/3) ... [2023-11-06 21:58:19,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90eb031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:19, skipping insertion in model container [2023-11-06 21:58:19,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:19" (3/3) ... [2023-11-06 21:58:19,353 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2023-11-06 21:58:19,375 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:19,376 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:58:19,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:19,521 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29d8cb5b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:19,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:58:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 1896 states, 1328 states have (on average 1.4352409638554218) internal successors, (1906), 1380 states have internal predecessors, (1906), 483 states have call successors, (483), 84 states have call predecessors, (483), 83 states have return successors, (476), 462 states have call predecessors, (476), 476 states have call successors, (476) [2023-11-06 21:58:19,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 21:58:19,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:19,565 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:19,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:19,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:19,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1616571903, now seen corresponding path program 1 times [2023-11-06 21:58:19,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:19,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027044692] [2023-11-06 21:58:19,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:19,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:58:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 21:58:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 21:58:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 21:58:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-06 21:58:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 21:58:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 21:58:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-06 21:58:20,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:20,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027044692] [2023-11-06 21:58:20,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027044692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:20,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:20,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:58:20,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919585005] [2023-11-06 21:58:20,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:20,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:20,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:21,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:21,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:21,015 INFO L87 Difference]: Start difference. First operand has 1896 states, 1328 states have (on average 1.4352409638554218) internal successors, (1906), 1380 states have internal predecessors, (1906), 483 states have call successors, (483), 84 states have call predecessors, (483), 83 states have return successors, (476), 462 states have call predecessors, (476), 476 states have call successors, (476) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 21:58:24,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:26,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:30,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:31,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:32,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:36,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:38,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:40,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:45,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:48,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:52,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:53,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:55,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:58:58,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:58,227 INFO L93 Difference]: Finished difference Result 4122 states and 6553 transitions. [2023-11-06 21:58:58,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:58,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 127 [2023-11-06 21:58:58,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:58,274 INFO L225 Difference]: With dead ends: 4122 [2023-11-06 21:58:58,274 INFO L226 Difference]: Without dead ends: 2214 [2023-11-06 21:58:58,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:58:58,308 INFO L413 NwaCegarLoop]: 2422 mSDtfsCounter, 981 mSDsluCounter, 3747 mSDsCounter, 0 mSdLazyCounter, 2791 mSolverCounterSat, 1280 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 6169 SdHoareTripleChecker+Invalid, 4075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1280 IncrementalHoareTripleChecker+Valid, 2791 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:58,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 6169 Invalid, 4075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1280 Valid, 2791 Invalid, 4 Unknown, 0 Unchecked, 36.7s Time] [2023-11-06 21:58:58,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2023-11-06 21:58:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1879. [2023-11-06 21:58:58,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1320 states have (on average 1.415909090909091) internal successors, (1869), 1364 states have internal predecessors, (1869), 476 states have call successors, (476), 83 states have call predecessors, (476), 82 states have return successors, (474), 460 states have call predecessors, (474), 474 states have call successors, (474) [2023-11-06 21:58:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2819 transitions. [2023-11-06 21:58:58,577 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2819 transitions. Word has length 127 [2023-11-06 21:58:58,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:58,578 INFO L495 AbstractCegarLoop]: Abstraction has 1879 states and 2819 transitions. [2023-11-06 21:58:58,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 21:58:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2819 transitions. [2023-11-06 21:58:58,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 21:58:58,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:58,589 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:58,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:58:58,590 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:58,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:58,590 INFO L85 PathProgramCache]: Analyzing trace with hash 561430967, now seen corresponding path program 1 times [2023-11-06 21:58:58,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:58,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936320889] [2023-11-06 21:58:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:58,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:58:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 21:58:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 21:58:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 21:58:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-06 21:58:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 21:58:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 21:58:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-06 21:58:59,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:59,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936320889] [2023-11-06 21:58:59,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936320889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:59,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:59,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:58:59,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775647296] [2023-11-06 21:58:59,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:59,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:58:59,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:59,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:58:59,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:58:59,354 INFO L87 Difference]: Start difference. First operand 1879 states and 2819 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 21:59:03,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:04,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:12,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:15,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:16,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:20,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:23,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:25,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:27,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:29,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:32,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:34,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:34,828 INFO L93 Difference]: Finished difference Result 6059 states and 9460 transitions. [2023-11-06 21:59:34,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:59:34,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 127 [2023-11-06 21:59:34,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:59:34,879 INFO L225 Difference]: With dead ends: 6059 [2023-11-06 21:59:34,880 INFO L226 Difference]: Without dead ends: 4209 [2023-11-06 21:59:34,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:59:34,901 INFO L413 NwaCegarLoop]: 2429 mSDtfsCounter, 5607 mSDsluCounter, 3579 mSDsCounter, 0 mSdLazyCounter, 2047 mSolverCounterSat, 3956 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5952 SdHoareTripleChecker+Valid, 6008 SdHoareTripleChecker+Invalid, 6008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3956 IncrementalHoareTripleChecker+Valid, 2047 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2023-11-06 21:59:34,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5952 Valid, 6008 Invalid, 6008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3956 Valid, 2047 Invalid, 5 Unknown, 0 Unchecked, 34.8s Time] [2023-11-06 21:59:34,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2023-11-06 21:59:35,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 3541. [2023-11-06 21:59:35,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 2503 states have (on average 1.4262884538553735) internal successors, (3570), 2588 states have internal predecessors, (3570), 880 states have call successors, (880), 158 states have call predecessors, (880), 157 states have return successors, (878), 850 states have call predecessors, (878), 878 states have call successors, (878) [2023-11-06 21:59:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 5328 transitions. [2023-11-06 21:59:35,260 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 5328 transitions. Word has length 127 [2023-11-06 21:59:35,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:59:35,261 INFO L495 AbstractCegarLoop]: Abstraction has 3541 states and 5328 transitions. [2023-11-06 21:59:35,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 21:59:35,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 5328 transitions. [2023-11-06 21:59:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-06 21:59:35,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:35,266 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:35,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:59:35,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:35,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:35,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1307897765, now seen corresponding path program 1 times [2023-11-06 21:59:35,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:35,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982326611] [2023-11-06 21:59:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:35,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:59:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 21:59:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:59:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 21:59:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 21:59:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:35,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:36,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:59:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-06 21:59:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 21:59:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 21:59:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-06 21:59:36,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:36,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982326611] [2023-11-06 21:59:36,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982326611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:36,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:36,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:59:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706434428] [2023-11-06 21:59:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:36,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:59:36,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:36,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:59:36,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:59:36,082 INFO L87 Difference]: Start difference. First operand 3541 states and 5328 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 21:59:40,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:42,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:50,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:52,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:53,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:55,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:57,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:58,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:02,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:05,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:07,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:09,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:11,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:16,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:18,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:20,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:22,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:24,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:26,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:28,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:00:28,934 INFO L93 Difference]: Finished difference Result 11573 states and 18106 transitions. [2023-11-06 22:00:28,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:00:28,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 134 [2023-11-06 22:00:28,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:00:29,034 INFO L225 Difference]: With dead ends: 11573 [2023-11-06 22:00:29,034 INFO L226 Difference]: Without dead ends: 8061 [2023-11-06 22:00:29,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:00:29,078 INFO L413 NwaCegarLoop]: 2414 mSDtfsCounter, 5538 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 4004 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5914 SdHoareTripleChecker+Valid, 6030 SdHoareTripleChecker+Invalid, 6065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4004 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:00:29,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5914 Valid, 6030 Invalid, 6065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4004 Valid, 2048 Invalid, 13 Unknown, 0 Unchecked, 52.2s Time] [2023-11-06 22:00:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8061 states. [2023-11-06 22:00:29,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8061 to 6806. [2023-11-06 22:00:29,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6806 states, 4800 states have (on average 1.4277083333333334) internal successors, (6853), 4966 states have internal predecessors, (6853), 1696 states have call successors, (1696), 310 states have call predecessors, (1696), 309 states have return successors, (1693), 1637 states have call predecessors, (1693), 1693 states have call successors, (1693) [2023-11-06 22:00:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6806 states to 6806 states and 10242 transitions. [2023-11-06 22:00:29,786 INFO L78 Accepts]: Start accepts. Automaton has 6806 states and 10242 transitions. Word has length 134 [2023-11-06 22:00:29,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:00:29,788 INFO L495 AbstractCegarLoop]: Abstraction has 6806 states and 10242 transitions. [2023-11-06 22:00:29,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:00:29,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6806 states and 10242 transitions. [2023-11-06 22:00:29,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-06 22:00:29,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:29,795 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:29,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:00:29,796 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:00:29,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:29,796 INFO L85 PathProgramCache]: Analyzing trace with hash -701632353, now seen corresponding path program 1 times [2023-11-06 22:00:29,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:29,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96390955] [2023-11-06 22:00:29,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:29,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:00:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:00:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:00:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:00:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:00:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:00:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:00:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:00:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:00:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:00:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:00:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:00:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:00:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:00:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:00:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:00:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-06 22:00:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 22:00:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 22:00:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,569 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-06 22:00:30,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:30,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96390955] [2023-11-06 22:00:30,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96390955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:30,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:30,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:00:30,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738574767] [2023-11-06 22:00:30,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:30,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:00:30,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:30,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:00:30,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:00:30,574 INFO L87 Difference]: Start difference. First operand 6806 states and 10242 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:00:32,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:34,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:37,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:39,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:43,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:45,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:52,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:55,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:56,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:59,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:05,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:07,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:09,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:11,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:11,298 INFO L93 Difference]: Finished difference Result 8065 states and 12822 transitions. [2023-11-06 22:01:11,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:01:11,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 136 [2023-11-06 22:01:11,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:11,376 INFO L225 Difference]: With dead ends: 8065 [2023-11-06 22:01:11,376 INFO L226 Difference]: Without dead ends: 8062 [2023-11-06 22:01:11,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:01:11,383 INFO L413 NwaCegarLoop]: 2433 mSDtfsCounter, 1228 mSDsluCounter, 4687 mSDsCounter, 0 mSdLazyCounter, 2764 mSolverCounterSat, 1331 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 7120 SdHoareTripleChecker+Invalid, 4102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1331 IncrementalHoareTripleChecker+Valid, 2764 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:11,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 7120 Invalid, 4102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1331 Valid, 2764 Invalid, 7 Unknown, 0 Unchecked, 40.3s Time] [2023-11-06 22:01:11,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8062 states. [2023-11-06 22:01:11,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8062 to 6810. [2023-11-06 22:01:11,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6810 states, 4804 states have (on average 1.4273522064945878) internal successors, (6857), 4970 states have internal predecessors, (6857), 1696 states have call successors, (1696), 310 states have call predecessors, (1696), 309 states have return successors, (1693), 1637 states have call predecessors, (1693), 1693 states have call successors, (1693) [2023-11-06 22:01:11,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6810 states to 6810 states and 10246 transitions. [2023-11-06 22:01:11,997 INFO L78 Accepts]: Start accepts. Automaton has 6810 states and 10246 transitions. Word has length 136 [2023-11-06 22:01:11,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:11,999 INFO L495 AbstractCegarLoop]: Abstraction has 6810 states and 10246 transitions. [2023-11-06 22:01:12,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:01:12,001 INFO L276 IsEmpty]: Start isEmpty. Operand 6810 states and 10246 transitions. [2023-11-06 22:01:12,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-06 22:01:12,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:12,005 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:12,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:01:12,005 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:12,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:12,006 INFO L85 PathProgramCache]: Analyzing trace with hash -486980028, now seen corresponding path program 1 times [2023-11-06 22:01:12,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:12,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737306544] [2023-11-06 22:01:12,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:12,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:01:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:01:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:01:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:01:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:01:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:01:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:01:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:01:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:01:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:01:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:01:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:01:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:01:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:01:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:01:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:13,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:01:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-06 22:01:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:13,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 22:01:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:13,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 22:01:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-06 22:01:13,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:13,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737306544] [2023-11-06 22:01:13,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737306544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:13,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:13,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:01:13,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069583468] [2023-11-06 22:01:13,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:13,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:01:13,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:13,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:01:13,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:01:13,068 INFO L87 Difference]: Start difference. First operand 6810 states and 10246 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:01:14,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:16,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:18,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:22,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:24,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:28,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:32,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:38,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:40,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:42,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:44,592 INFO L93 Difference]: Finished difference Result 14814 states and 23326 transitions. [2023-11-06 22:01:44,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:01:44,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 138 [2023-11-06 22:01:44,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:44,598 INFO L225 Difference]: With dead ends: 14814 [2023-11-06 22:01:44,598 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:01:44,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:01:44,691 INFO L413 NwaCegarLoop]: 2408 mSDtfsCounter, 4215 mSDsluCounter, 3657 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 2251 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4561 SdHoareTripleChecker+Valid, 6065 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2251 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:44,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4561 Valid, 6065 Invalid, 4275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2251 Valid, 2020 Invalid, 4 Unknown, 0 Unchecked, 30.9s Time] [2023-11-06 22:01:44,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:01:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:01:44,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:01:44,696 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2023-11-06 22:01:44,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:44,697 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:01:44,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:01:44,697 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:01:44,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:01:44,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:01:44,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:01:44,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.