./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 15:18:35,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 15:18:36,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 15:18:36,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 15:18:36,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 15:18:36,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 15:18:36,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 15:18:36,038 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 15:18:36,038 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 15:18:36,039 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 15:18:36,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 15:18:36,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 15:18:36,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 15:18:36,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 15:18:36,040 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 15:18:36,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 15:18:36,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 15:18:36,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 15:18:36,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 15:18:36,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 15:18:36,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 15:18:36,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 15:18:36,043 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 15:18:36,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 15:18:36,044 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 15:18:36,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 15:18:36,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 15:18:36,045 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 15:18:36,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 15:18:36,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 15:18:36,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 15:18:36,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 15:18:36,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 15:18:36,047 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 15:18:36,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 15:18:36,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 15:18:36,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 15:18:36,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 15:18:36,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 15:18:36,049 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b [2024-10-14 15:18:36,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 15:18:36,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 15:18:36,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 15:18:36,356 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 15:18:36,357 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 15:18:36,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2024-10-14 15:18:37,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 15:18:38,224 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 15:18:38,225 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2024-10-14 15:18:38,262 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d924882a1/5c5d89ed19be43a4a74098775ffff94e/FLAG1d9318d5e [2024-10-14 15:18:38,378 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d924882a1/5c5d89ed19be43a4a74098775ffff94e [2024-10-14 15:18:38,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 15:18:38,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 15:18:38,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 15:18:38,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 15:18:38,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 15:18:38,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:18:38" (1/1) ... [2024-10-14 15:18:38,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7666ce2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:38, skipping insertion in model container [2024-10-14 15:18:38,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:18:38" (1/1) ... [2024-10-14 15:18:38,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 15:18:39,597 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2024-10-14 15:18:39,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 15:18:39,683 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 15:18:39,748 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; incl %0": "+m" (v->counter)); [2827] [2024-10-14 15:18:39,750 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [2834-2835] [2024-10-14 15:18:39,844 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2024-10-14 15:18:39,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 15:18:39,896 INFO L204 MainTranslator]: Completed translation [2024-10-14 15:18:39,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39 WrapperNode [2024-10-14 15:18:39,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 15:18:39,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 15:18:39,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 15:18:39,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 15:18:39,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:39,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,056 INFO L138 Inliner]: procedures = 144, calls = 819, calls flagged for inlining = 50, calls inlined = 42, statements flattened = 1725 [2024-10-14 15:18:40,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 15:18:40,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 15:18:40,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 15:18:40,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 15:18:40,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,200 INFO L175 MemorySlicer]: Split 398 memory accesses to 20 slices as follows [2, 1, 6, 22, 5, 1, 6, 1, 218, 2, 11, 3, 11, 3, 31, 13, 29, 5, 1, 27]. 55 percent of accesses are in the largest equivalence class. The 154 initializations are split as follows [2, 0, 0, 22, 5, 0, 6, 1, 0, 0, 11, 3, 11, 0, 24, 13, 29, 0, 0, 27]. The 152 writes are split as follows [0, 1, 5, 0, 0, 0, 0, 0, 141, 2, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0]. [2024-10-14 15:18:40,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 15:18:40,385 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 15:18:40,385 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 15:18:40,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 15:18:40,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (1/1) ... [2024-10-14 15:18:40,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 15:18:40,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:18:40,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 15:18:40,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 15:18:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-10-14 15:18:40,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-10-14 15:18:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-10-14 15:18:40,471 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-10-14 15:18:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-10-14 15:18:40,472 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-10-14 15:18:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2024-10-14 15:18:40,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2024-10-14 15:18:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-10-14 15:18:40,474 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-10-14 15:18:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 15:18:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 15:18:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 15:18:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 15:18:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 15:18:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 15:18:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-14 15:18:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-14 15:18:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-14 15:18:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-14 15:18:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-14 15:18:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-14 15:18:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-14 15:18:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-14 15:18:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-14 15:18:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-14 15:18:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-14 15:18:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-10-14 15:18:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-10-14 15:18:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-10-14 15:18:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2024-10-14 15:18:40,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2024-10-14 15:18:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-10-14 15:18:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-10-14 15:18:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2024-10-14 15:18:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2024-10-14 15:18:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-14 15:18:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-14 15:18:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2024-10-14 15:18:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2024-10-14 15:18:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2024-10-14 15:18:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2024-10-14 15:18:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2024-10-14 15:18:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2024-10-14 15:18:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 15:18:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 15:18:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 15:18:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 15:18:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 15:18:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 15:18:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-14 15:18:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-14 15:18:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-14 15:18:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-14 15:18:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-14 15:18:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-14 15:18:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-14 15:18:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-14 15:18:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-14 15:18:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-14 15:18:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-14 15:18:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-10-14 15:18:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-10-14 15:18:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-10-14 15:18:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-10-14 15:18:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-10-14 15:18:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2024-10-14 15:18:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2024-10-14 15:18:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-14 15:18:40,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-14 15:18:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-10-14 15:18:40,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-10-14 15:18:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2024-10-14 15:18:40,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2024-10-14 15:18:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 15:18:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2024-10-14 15:18:40,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2024-10-14 15:18:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2024-10-14 15:18:40,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2024-10-14 15:18:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-10-14 15:18:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-10-14 15:18:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2024-10-14 15:18:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2024-10-14 15:18:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-10-14 15:18:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-10-14 15:18:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 15:18:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2024-10-14 15:18:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2024-10-14 15:18:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-10-14 15:18:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-10-14 15:18:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-10-14 15:18:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-10-14 15:18:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 15:18:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 15:18:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 15:18:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-14 15:18:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-14 15:18:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-14 15:18:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-14 15:18:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-14 15:18:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-14 15:18:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-14 15:18:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-14 15:18:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-14 15:18:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-14 15:18:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-14 15:18:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-10-14 15:18:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-10-14 15:18:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-10-14 15:18:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-10-14 15:18:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-10-14 15:18:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-10-14 15:18:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 15:18:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2024-10-14 15:18:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2024-10-14 15:18:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2024-10-14 15:18:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2024-10-14 15:18:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 15:18:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 15:18:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 15:18:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-14 15:18:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-14 15:18:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-14 15:18:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-14 15:18:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-14 15:18:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-14 15:18:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-14 15:18:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-14 15:18:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-14 15:18:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-14 15:18:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-14 15:18:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-10-14 15:18:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-10-14 15:18:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-10-14 15:18:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-10-14 15:18:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-10-14 15:18:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-10-14 15:18:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2024-10-14 15:18:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2024-10-14 15:18:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2024-10-14 15:18:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2024-10-14 15:18:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2024-10-14 15:18:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2024-10-14 15:18:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-10-14 15:18:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-10-14 15:18:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 15:18:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-14 15:18:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-14 15:18:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-14 15:18:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-14 15:18:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-14 15:18:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-14 15:18:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-14 15:18:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-14 15:18:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-10-14 15:18:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-10-14 15:18:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-10-14 15:18:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-10-14 15:18:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-10-14 15:18:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-10-14 15:18:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-10-14 15:18:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-10-14 15:18:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-10-14 15:18:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-10-14 15:18:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2024-10-14 15:18:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2024-10-14 15:18:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-10-14 15:18:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-10-14 15:18:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2024-10-14 15:18:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2024-10-14 15:18:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2024-10-14 15:18:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2024-10-14 15:18:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 15:18:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 15:18:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 15:18:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 15:18:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 15:18:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 15:18:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 15:18:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-14 15:18:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-14 15:18:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-14 15:18:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2024-10-14 15:18:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2024-10-14 15:18:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2024-10-14 15:18:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2024-10-14 15:18:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2024-10-14 15:18:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2024-10-14 15:18:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-10-14 15:18:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-10-14 15:18:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 15:18:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 15:18:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-10-14 15:18:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-10-14 15:18:40,997 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 15:18:41,000 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 15:18:48,938 INFO L? ?]: Removed 697 outVars from TransFormulas that were not future-live. [2024-10-14 15:18:48,939 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 15:18:49,070 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 15:18:49,070 INFO L314 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-14 15:18:49,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:18:49 BoogieIcfgContainer [2024-10-14 15:18:49,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 15:18:49,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 15:18:49,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 15:18:49,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 15:18:49,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:18:38" (1/3) ... [2024-10-14 15:18:49,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224983f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:18:49, skipping insertion in model container [2024-10-14 15:18:49,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:18:39" (2/3) ... [2024-10-14 15:18:49,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224983f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:18:49, skipping insertion in model container [2024-10-14 15:18:49,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:18:49" (3/3) ... [2024-10-14 15:18:49,081 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2024-10-14 15:18:49,097 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 15:18:49,098 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 15:18:49,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 15:18:49,197 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@504a3e31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 15:18:49,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 15:18:49,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 794 states, 561 states have (on average 1.4420677361853833) internal successors, (809), 582 states have internal predecessors, (809), 191 states have call successors, (191), 44 states have call predecessors, (191), 44 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-10-14 15:18:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 15:18:49,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:18:49,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:18:49,218 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:18:49,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:18:49,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1032908081, now seen corresponding path program 1 times [2024-10-14 15:18:49,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:18:49,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449080517] [2024-10-14 15:18:49,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:18:49,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:18:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:18:49,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:18:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:18:49,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 15:18:49,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:18:49,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449080517] [2024-10-14 15:18:49,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449080517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:18:49,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:18:49,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 15:18:49,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995223754] [2024-10-14 15:18:49,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:18:49,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:18:49,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:18:49,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:18:49,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 15:18:49,733 INFO L87 Difference]: Start difference. First operand has 794 states, 561 states have (on average 1.4420677361853833) internal successors, (809), 582 states have internal predecessors, (809), 191 states have call successors, (191), 44 states have call predecessors, (191), 44 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 15:18:50,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:18:50,575 INFO L93 Difference]: Finished difference Result 1937 states and 2962 transitions. [2024-10-14 15:18:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:18:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-10-14 15:18:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:18:50,608 INFO L225 Difference]: With dead ends: 1937 [2024-10-14 15:18:50,608 INFO L226 Difference]: Without dead ends: 1140 [2024-10-14 15:18:50,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 15:18:50,626 INFO L432 NwaCegarLoop]: 1389 mSDtfsCounter, 526 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 2447 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 15:18:50,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 2447 Invalid, 167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 15:18:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2024-10-14 15:18:50,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1112. [2024-10-14 15:18:50,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 778 states have (on average 1.417737789203085) internal successors, (1103), 799 states have internal predecessors, (1103), 266 states have call successors, (266), 68 states have call predecessors, (266), 67 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2024-10-14 15:18:50,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1629 transitions. [2024-10-14 15:18:50,777 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1629 transitions. Word has length 16 [2024-10-14 15:18:50,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:18:50,777 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1629 transitions. [2024-10-14 15:18:50,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 15:18:50,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1629 transitions. [2024-10-14 15:18:50,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 15:18:50,779 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:18:50,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:18:50,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 15:18:50,780 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:18:50,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:18:50,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1254437233, now seen corresponding path program 1 times [2024-10-14 15:18:50,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:18:50,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371832413] [2024-10-14 15:18:50,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:18:50,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:18:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:18:50,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 15:18:50,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:18:50,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371832413] [2024-10-14 15:18:50,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371832413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:18:50,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:18:50,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 15:18:50,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828926208] [2024-10-14 15:18:50,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:18:50,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:18:50,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:18:50,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:18:50,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 15:18:50,919 INFO L87 Difference]: Start difference. First operand 1112 states and 1629 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 15:18:51,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:18:51,199 INFO L93 Difference]: Finished difference Result 2223 states and 3257 transitions. [2024-10-14 15:18:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:18:51,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-14 15:18:51,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:18:51,210 INFO L225 Difference]: With dead ends: 2223 [2024-10-14 15:18:51,210 INFO L226 Difference]: Without dead ends: 1112 [2024-10-14 15:18:51,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 15:18:51,216 INFO L432 NwaCegarLoop]: 1083 mSDtfsCounter, 1141 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 15:18:51,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 1083 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 15:18:51,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-10-14 15:18:51,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2024-10-14 15:18:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 778 states have (on average 1.4151670951156812) internal successors, (1101), 799 states have internal predecessors, (1101), 266 states have call successors, (266), 68 states have call predecessors, (266), 67 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2024-10-14 15:18:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1627 transitions. [2024-10-14 15:18:51,344 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1627 transitions. Word has length 16 [2024-10-14 15:18:51,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:18:51,344 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1627 transitions. [2024-10-14 15:18:51,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 15:18:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1627 transitions. [2024-10-14 15:18:51,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 15:18:51,347 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:18:51,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:18:51,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 15:18:51,347 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:18:51,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:18:51,348 INFO L85 PathProgramCache]: Analyzing trace with hash -469304842, now seen corresponding path program 1 times [2024-10-14 15:18:51,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:18:51,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641975554] [2024-10-14 15:18:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:18:51,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:18:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:18:51,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 15:18:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:18:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 15:18:51,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:18:51,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641975554] [2024-10-14 15:18:51,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641975554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:18:51,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:18:51,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 15:18:51,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472191953] [2024-10-14 15:18:51,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:18:51,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 15:18:51,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:18:51,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 15:18:51,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 15:18:51,519 INFO L87 Difference]: Start difference. First operand 1112 states and 1627 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 15:18:58,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:19:02,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:19:06,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:19:10,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:10,883 INFO L93 Difference]: Finished difference Result 2860 states and 4191 transitions. [2024-10-14 15:19:10,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 15:19:10,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-14 15:19:10,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:10,895 INFO L225 Difference]: With dead ends: 2860 [2024-10-14 15:19:10,895 INFO L226 Difference]: Without dead ends: 1749 [2024-10-14 15:19:10,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:10,901 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 1354 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 344 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:10,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1558 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 2107 Invalid, 3 Unknown, 0 Unchecked, 19.1s Time] [2024-10-14 15:19:10,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2024-10-14 15:19:10,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1745. [2024-10-14 15:19:10,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1230 states have (on average 1.4178861788617887) internal successors, (1744), 1259 states have internal predecessors, (1744), 409 states have call successors, (409), 106 states have call predecessors, (409), 105 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2024-10-14 15:19:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2556 transitions. [2024-10-14 15:19:10,993 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2556 transitions. Word has length 17 [2024-10-14 15:19:10,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:10,993 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2556 transitions. [2024-10-14 15:19:10,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 15:19:10,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2556 transitions. [2024-10-14 15:19:10,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 15:19:10,997 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:10,998 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:10,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 15:19:10,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:10,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:10,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1003401782, now seen corresponding path program 1 times [2024-10-14 15:19:10,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:10,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452903203] [2024-10-14 15:19:10,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:10,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:11,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 15:19:11,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:11,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452903203] [2024-10-14 15:19:11,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452903203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:11,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:19:11,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 15:19:11,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219603801] [2024-10-14 15:19:11,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:11,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:19:11,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:11,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:19:11,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 15:19:11,142 INFO L87 Difference]: Start difference. First operand 1745 states and 2556 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 15:19:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:11,542 INFO L93 Difference]: Finished difference Result 3513 states and 5151 transitions. [2024-10-14 15:19:11,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:19:11,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-10-14 15:19:11,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:11,556 INFO L225 Difference]: With dead ends: 3513 [2024-10-14 15:19:11,556 INFO L226 Difference]: Without dead ends: 1769 [2024-10-14 15:19:11,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 15:19:11,566 INFO L432 NwaCegarLoop]: 1081 mSDtfsCounter, 12 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:11,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2158 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 15:19:11,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2024-10-14 15:19:11,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1747. [2024-10-14 15:19:11,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1747 states, 1232 states have (on average 1.4172077922077921) internal successors, (1746), 1261 states have internal predecessors, (1746), 409 states have call successors, (409), 106 states have call predecessors, (409), 105 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2024-10-14 15:19:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 2558 transitions. [2024-10-14 15:19:11,668 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 2558 transitions. Word has length 25 [2024-10-14 15:19:11,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:11,668 INFO L471 AbstractCegarLoop]: Abstraction has 1747 states and 2558 transitions. [2024-10-14 15:19:11,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 15:19:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 2558 transitions. [2024-10-14 15:19:11,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-14 15:19:11,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:11,671 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:11,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 15:19:11,671 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:11,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1356760886, now seen corresponding path program 1 times [2024-10-14 15:19:11,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:11,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027398509] [2024-10-14 15:19:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:11,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:11,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 15:19:11,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:11,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027398509] [2024-10-14 15:19:11,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027398509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:11,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:19:11,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 15:19:11,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252234891] [2024-10-14 15:19:11,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:11,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:19:11,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:11,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:19:11,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 15:19:11,799 INFO L87 Difference]: Start difference. First operand 1747 states and 2558 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 15:19:12,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:12,127 INFO L93 Difference]: Finished difference Result 3503 states and 5133 transitions. [2024-10-14 15:19:12,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:19:12,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-10-14 15:19:12,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:12,139 INFO L225 Difference]: With dead ends: 3503 [2024-10-14 15:19:12,140 INFO L226 Difference]: Without dead ends: 1757 [2024-10-14 15:19:12,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 15:19:12,147 INFO L432 NwaCegarLoop]: 1082 mSDtfsCounter, 1 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:12,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2161 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 15:19:12,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2024-10-14 15:19:12,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1757. [2024-10-14 15:19:12,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1242 states have (on average 1.4186795491143318) internal successors, (1762), 1271 states have internal predecessors, (1762), 409 states have call successors, (409), 106 states have call predecessors, (409), 105 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2024-10-14 15:19:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2574 transitions. [2024-10-14 15:19:12,263 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2574 transitions. Word has length 29 [2024-10-14 15:19:12,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:12,264 INFO L471 AbstractCegarLoop]: Abstraction has 1757 states and 2574 transitions. [2024-10-14 15:19:12,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 15:19:12,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2574 transitions. [2024-10-14 15:19:12,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 15:19:12,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:12,265 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:12,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 15:19:12,266 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:12,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:12,266 INFO L85 PathProgramCache]: Analyzing trace with hash -788417359, now seen corresponding path program 1 times [2024-10-14 15:19:12,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:12,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368149167] [2024-10-14 15:19:12,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:12,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:12,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:12,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:19:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:12,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 15:19:12,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368149167] [2024-10-14 15:19:12,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368149167] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:19:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358622647] [2024-10-14 15:19:12,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:12,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:12,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:19:12,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:19:12,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 15:19:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:12,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 15:19:12,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:19:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 15:19:12,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 15:19:12,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358622647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:12,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 15:19:12,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-14 15:19:12,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651131291] [2024-10-14 15:19:12,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:12,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:19:12,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:12,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:19:12,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:12,912 INFO L87 Difference]: Start difference. First operand 1757 states and 2574 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 15:19:13,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:13,314 INFO L93 Difference]: Finished difference Result 3557 states and 5221 transitions. [2024-10-14 15:19:13,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:19:13,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-10-14 15:19:13,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:13,358 INFO L225 Difference]: With dead ends: 3557 [2024-10-14 15:19:13,358 INFO L226 Difference]: Without dead ends: 1801 [2024-10-14 15:19:13,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:13,365 INFO L432 NwaCegarLoop]: 1091 mSDtfsCounter, 13 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:13,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2169 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 15:19:13,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-10-14 15:19:13,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1801. [2024-10-14 15:19:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1274 states have (on average 1.4207221350078494) internal successors, (1810), 1303 states have internal predecessors, (1810), 421 states have call successors, (421), 106 states have call predecessors, (421), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-14 15:19:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2646 transitions. [2024-10-14 15:19:13,445 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2646 transitions. Word has length 34 [2024-10-14 15:19:13,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:13,445 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2646 transitions. [2024-10-14 15:19:13,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 15:19:13,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2646 transitions. [2024-10-14 15:19:13,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 15:19:13,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:13,447 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:13,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 15:19:13,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-14 15:19:13,652 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:13,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1859693111, now seen corresponding path program 1 times [2024-10-14 15:19:13,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:13,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981953228] [2024-10-14 15:19:13,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:13,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:13,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:13,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:19:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:13,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:19:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 15:19:13,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:13,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981953228] [2024-10-14 15:19:13,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981953228] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:19:13,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452159220] [2024-10-14 15:19:13,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:13,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:13,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:19:13,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:19:13,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 15:19:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:14,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 15:19:14,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:19:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 15:19:14,327 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 15:19:14,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452159220] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:14,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 15:19:14,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-14 15:19:14,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654711380] [2024-10-14 15:19:14,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:14,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:19:14,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:14,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:19:14,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:14,329 INFO L87 Difference]: Start difference. First operand 1801 states and 2646 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:14,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:14,623 INFO L93 Difference]: Finished difference Result 1823 states and 2672 transitions. [2024-10-14 15:19:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:19:14,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-10-14 15:19:14,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:14,636 INFO L225 Difference]: With dead ends: 1823 [2024-10-14 15:19:14,636 INFO L226 Difference]: Without dead ends: 1812 [2024-10-14 15:19:14,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:14,638 INFO L432 NwaCegarLoop]: 1096 mSDtfsCounter, 1144 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:14,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 1109 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 15:19:14,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2024-10-14 15:19:14,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1801. [2024-10-14 15:19:14,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1274 states have (on average 1.4191522762951334) internal successors, (1808), 1303 states have internal predecessors, (1808), 421 states have call successors, (421), 106 states have call predecessors, (421), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-14 15:19:14,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2644 transitions. [2024-10-14 15:19:14,719 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2644 transitions. Word has length 38 [2024-10-14 15:19:14,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:14,721 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2644 transitions. [2024-10-14 15:19:14,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:14,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2644 transitions. [2024-10-14 15:19:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 15:19:14,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:14,722 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:14,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 15:19:14,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-14 15:19:14,924 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:14,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:14,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1802434809, now seen corresponding path program 1 times [2024-10-14 15:19:14,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:14,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177888279] [2024-10-14 15:19:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:14,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:15,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:15,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:19:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:15,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:19:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 15:19:15,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:15,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177888279] [2024-10-14 15:19:15,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177888279] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:19:15,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482662742] [2024-10-14 15:19:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:15,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:15,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:19:15,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:19:15,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 15:19:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:15,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 15:19:15,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:19:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 15:19:15,669 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 15:19:15,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482662742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:15,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 15:19:15,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-14 15:19:15,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242158619] [2024-10-14 15:19:15,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:15,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:19:15,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:15,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:19:15,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:15,670 INFO L87 Difference]: Start difference. First operand 1801 states and 2644 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:16,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:16,001 INFO L93 Difference]: Finished difference Result 1803 states and 2645 transitions. [2024-10-14 15:19:16,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:19:16,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-10-14 15:19:16,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:16,014 INFO L225 Difference]: With dead ends: 1803 [2024-10-14 15:19:16,014 INFO L226 Difference]: Without dead ends: 1800 [2024-10-14 15:19:16,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:16,017 INFO L432 NwaCegarLoop]: 1081 mSDtfsCounter, 1113 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:16,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 1081 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 15:19:16,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2024-10-14 15:19:16,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2024-10-14 15:19:16,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1274 states have (on average 1.4183673469387754) internal successors, (1807), 1302 states have internal predecessors, (1807), 420 states have call successors, (420), 106 states have call predecessors, (420), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-14 15:19:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2642 transitions. [2024-10-14 15:19:16,114 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2642 transitions. Word has length 38 [2024-10-14 15:19:16,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:16,115 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 2642 transitions. [2024-10-14 15:19:16,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:16,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2642 transitions. [2024-10-14 15:19:16,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 15:19:16,116 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:16,117 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:16,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 15:19:16,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:16,318 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:16,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash -41316681, now seen corresponding path program 1 times [2024-10-14 15:19:16,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:16,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529947816] [2024-10-14 15:19:16,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:16,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:16,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:16,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:19:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:16,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:19:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 15:19:16,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:16,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529947816] [2024-10-14 15:19:16,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529947816] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:19:16,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026003394] [2024-10-14 15:19:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:16,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:16,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:19:16,481 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:19:16,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 15:19:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:16,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 15:19:16,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:19:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 15:19:17,022 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 15:19:17,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026003394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:17,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 15:19:17,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-14 15:19:17,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735711774] [2024-10-14 15:19:17,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:17,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:19:17,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:17,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:19:17,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:17,024 INFO L87 Difference]: Start difference. First operand 1800 states and 2642 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:17,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:17,296 INFO L93 Difference]: Finished difference Result 1802 states and 2643 transitions. [2024-10-14 15:19:17,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:19:17,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-10-14 15:19:17,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:17,308 INFO L225 Difference]: With dead ends: 1802 [2024-10-14 15:19:17,308 INFO L226 Difference]: Without dead ends: 1799 [2024-10-14 15:19:17,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:17,310 INFO L432 NwaCegarLoop]: 1079 mSDtfsCounter, 1110 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:17,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1079 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 15:19:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2024-10-14 15:19:17,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2024-10-14 15:19:17,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1274 states have (on average 1.4175824175824177) internal successors, (1806), 1301 states have internal predecessors, (1806), 419 states have call successors, (419), 106 states have call predecessors, (419), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-14 15:19:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2640 transitions. [2024-10-14 15:19:17,404 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2640 transitions. Word has length 39 [2024-10-14 15:19:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:17,404 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 2640 transitions. [2024-10-14 15:19:17,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2640 transitions. [2024-10-14 15:19:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 15:19:17,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:17,406 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:17,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 15:19:17,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:17,606 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:17,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:17,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1281224694, now seen corresponding path program 1 times [2024-10-14 15:19:17,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:17,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013115566] [2024-10-14 15:19:17,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:17,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:17,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:17,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:19:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:17,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:19:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:17,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 15:19:17,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:17,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013115566] [2024-10-14 15:19:17,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013115566] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:19:17,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24412978] [2024-10-14 15:19:17,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:17,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:17,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:19:17,787 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:19:17,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 15:19:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:18,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 15:19:18,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:19:18,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 15:19:18,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 15:19:18,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24412978] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:18,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 15:19:18,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-14 15:19:18,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218279627] [2024-10-14 15:19:18,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:18,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:19:18,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:18,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:19:18,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:18,304 INFO L87 Difference]: Start difference. First operand 1799 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:18,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:18,515 INFO L93 Difference]: Finished difference Result 1801 states and 2641 transitions. [2024-10-14 15:19:18,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:19:18,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-10-14 15:19:18,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:18,528 INFO L225 Difference]: With dead ends: 1801 [2024-10-14 15:19:18,529 INFO L226 Difference]: Without dead ends: 1798 [2024-10-14 15:19:18,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:18,531 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 1107 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:18,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1077 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 15:19:18,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2024-10-14 15:19:18,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2024-10-14 15:19:18,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1274 states have (on average 1.4167974882260597) internal successors, (1805), 1300 states have internal predecessors, (1805), 418 states have call successors, (418), 106 states have call predecessors, (418), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-14 15:19:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2638 transitions. [2024-10-14 15:19:18,663 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2638 transitions. Word has length 40 [2024-10-14 15:19:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:18,664 INFO L471 AbstractCegarLoop]: Abstraction has 1798 states and 2638 transitions. [2024-10-14 15:19:18,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2638 transitions. [2024-10-14 15:19:18,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 15:19:18,665 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:18,665 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:18,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 15:19:18,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 15:19:18,870 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:18,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:18,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1063662566, now seen corresponding path program 1 times [2024-10-14 15:19:18,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:18,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589340846] [2024-10-14 15:19:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:18,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:19,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:19,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:19:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:19,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:19:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:19,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 15:19:19,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:19,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589340846] [2024-10-14 15:19:19,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589340846] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:19:19,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779379376] [2024-10-14 15:19:19,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:19,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:19,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:19:19,060 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:19:19,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 15:19:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:19,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 15:19:19,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:19:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 15:19:19,535 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 15:19:19,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779379376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:19,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 15:19:19,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-14 15:19:19,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883378833] [2024-10-14 15:19:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:19,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:19:19,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:19,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:19:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:19,536 INFO L87 Difference]: Start difference. First operand 1798 states and 2638 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:19,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:19,917 INFO L93 Difference]: Finished difference Result 2295 states and 3312 transitions. [2024-10-14 15:19:19,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:19:19,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-10-14 15:19:19,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:19,932 INFO L225 Difference]: With dead ends: 2295 [2024-10-14 15:19:19,932 INFO L226 Difference]: Without dead ends: 2260 [2024-10-14 15:19:19,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:19,934 INFO L432 NwaCegarLoop]: 1226 mSDtfsCounter, 1017 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:19,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 1667 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 15:19:19,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2024-10-14 15:19:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2260. [2024-10-14 15:19:20,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 1571 states have (on average 1.39528962444303) internal successors, (2192), 1606 states have internal predecessors, (2192), 536 states have call successors, (536), 153 states have call predecessors, (536), 152 states have return successors, (535), 535 states have call predecessors, (535), 535 states have call successors, (535) [2024-10-14 15:19:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3263 transitions. [2024-10-14 15:19:20,063 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3263 transitions. Word has length 41 [2024-10-14 15:19:20,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:20,063 INFO L471 AbstractCegarLoop]: Abstraction has 2260 states and 3263 transitions. [2024-10-14 15:19:20,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 15:19:20,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3263 transitions. [2024-10-14 15:19:20,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 15:19:20,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:20,066 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:20,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 15:19:20,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:20,267 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:20,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:20,268 INFO L85 PathProgramCache]: Analyzing trace with hash 604048974, now seen corresponding path program 1 times [2024-10-14 15:19:20,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:20,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487524314] [2024-10-14 15:19:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:20,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:20,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:20,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:19:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:20,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:19:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:20,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 15:19:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:20,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 15:19:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:20,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 15:19:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:20,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 15:19:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:20,460 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 15:19:20,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:20,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487524314] [2024-10-14 15:19:20,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487524314] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:19:20,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372025583] [2024-10-14 15:19:20,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:20,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:20,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:19:20,463 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:19:20,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 15:19:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:20,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 15:19:20,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:19:20,895 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 15:19:20,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 15:19:20,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372025583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:20,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 15:19:20,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-14 15:19:20,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699335266] [2024-10-14 15:19:20,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:20,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 15:19:20,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:20,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 15:19:20,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 15:19:20,896 INFO L87 Difference]: Start difference. First operand 2260 states and 3263 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 15:19:21,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:21,250 INFO L93 Difference]: Finished difference Result 4537 states and 6554 transitions. [2024-10-14 15:19:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 15:19:21,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-10-14 15:19:21,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:21,265 INFO L225 Difference]: With dead ends: 4537 [2024-10-14 15:19:21,266 INFO L226 Difference]: Without dead ends: 2278 [2024-10-14 15:19:21,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 15:19:21,276 INFO L432 NwaCegarLoop]: 1027 mSDtfsCounter, 19 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:21,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2049 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 15:19:21,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2024-10-14 15:19:21,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2262. [2024-10-14 15:19:21,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 1573 states have (on average 1.3947870311506676) internal successors, (2194), 1608 states have internal predecessors, (2194), 536 states have call successors, (536), 153 states have call predecessors, (536), 152 states have return successors, (535), 535 states have call predecessors, (535), 535 states have call successors, (535) [2024-10-14 15:19:21,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3265 transitions. [2024-10-14 15:19:21,440 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3265 transitions. Word has length 66 [2024-10-14 15:19:21,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:21,441 INFO L471 AbstractCegarLoop]: Abstraction has 2262 states and 3265 transitions. [2024-10-14 15:19:21,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 15:19:21,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3265 transitions. [2024-10-14 15:19:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 15:19:21,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:21,444 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:21,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 15:19:21,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:21,645 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:21,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:21,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1008921741, now seen corresponding path program 1 times [2024-10-14 15:19:21,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:21,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666229230] [2024-10-14 15:19:21,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:21,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:21,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:21,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:19:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:21,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:19:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:21,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 15:19:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:21,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 15:19:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:21,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 15:19:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:21,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 15:19:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:21,805 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 15:19:21,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:21,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666229230] [2024-10-14 15:19:21,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666229230] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:19:21,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176162899] [2024-10-14 15:19:21,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:21,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:19:21,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:19:21,808 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:19:21,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 15:19:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:22,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 15:19:22,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:19:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 15:19:22,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 15:19:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 15:19:22,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176162899] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 15:19:22,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 15:19:22,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-10-14 15:19:22,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933221162] [2024-10-14 15:19:22,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 15:19:22,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 15:19:22,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 15:19:22,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-14 15:19:22,399 INFO L87 Difference]: Start difference. First operand 2262 states and 3265 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 15:19:28,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:19:32,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:19:36,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:19:40,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:19:44,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:19:47,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:19:49,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:19:49,833 INFO L93 Difference]: Finished difference Result 4667 states and 6769 transitions. [2024-10-14 15:19:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 15:19:49,833 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 69 [2024-10-14 15:19:49,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:19:49,848 INFO L225 Difference]: With dead ends: 4667 [2024-10-14 15:19:49,848 INFO L226 Difference]: Without dead ends: 2406 [2024-10-14 15:19:49,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-14 15:19:49,857 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 623 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 83 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2024-10-14 15:19:49,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1080 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1537 Invalid, 5 Unknown, 0 Unchecked, 27.2s Time] [2024-10-14 15:19:49,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2024-10-14 15:19:49,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2406. [2024-10-14 15:19:49,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 1687 states have (on average 1.3965619442797865) internal successors, (2356), 1722 states have internal predecessors, (2356), 566 states have call successors, (566), 153 states have call predecessors, (566), 152 states have return successors, (565), 565 states have call predecessors, (565), 565 states have call successors, (565) [2024-10-14 15:19:49,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3487 transitions. [2024-10-14 15:19:49,999 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3487 transitions. Word has length 69 [2024-10-14 15:19:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:19:49,999 INFO L471 AbstractCegarLoop]: Abstraction has 2406 states and 3487 transitions. [2024-10-14 15:19:50,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-14 15:19:50,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3487 transitions. [2024-10-14 15:19:50,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 15:19:50,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:19:50,003 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:19:50,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 15:19:50,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 15:19:50,208 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:19:50,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:19:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash 374173069, now seen corresponding path program 2 times [2024-10-14 15:19:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:19:50,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172611003] [2024-10-14 15:19:50,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:19:50,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:19:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:50,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 15:19:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:50,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 15:19:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:50,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 15:19:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:50,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 15:19:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:50,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 15:19:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:50,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 15:19:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:50,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 15:19:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:19:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-14 15:19:50,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:19:50,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172611003] [2024-10-14 15:19:50,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172611003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:19:50,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:19:50,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 15:19:50,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126099418] [2024-10-14 15:19:50,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:19:50,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 15:19:50,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:19:50,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 15:19:50,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:19:50,465 INFO L87 Difference]: Start difference. First operand 2406 states and 3487 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-14 15:19:56,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:20:00,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 15:20:04,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []