/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:03:12,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:03:12,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:03:12,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:03:12,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:03:12,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:03:12,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:03:12,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:03:12,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:03:12,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:03:12,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:03:12,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:03:12,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:03:12,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:03:12,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:03:12,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:03:12,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:03:12,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:03:12,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:03:12,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:03:12,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:03:12,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:03:12,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:03:12,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:03:12,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 06:03:12,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:03:12,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:03:12,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:03:12,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:03:12,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:03:12,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:03:12,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:03:12,390 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:03:12,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:03:12,391 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:03:12,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:03:12,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:03:12,392 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:03:12,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:03:12,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:03:12,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:03:12,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:03:12,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:03:12,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:03:12,394 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:03:12,394 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:03:12,394 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:03:12,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:03:12,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:03:12,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:03:12,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:03:12,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:03:12,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:03:12,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:03:12,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:03:12,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:03:12,396 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:03:12,396 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:03:12,396 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:03:12,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:03:12,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:03:12,396 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:03:12,396 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:03:12,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:03:12,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:03:12,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:03:12,665 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:03:12,666 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:03:12,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i [2022-01-10 06:03:12,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4510abbe2/67c5609b681840a2a8eae8760115af9e/FLAG01ba064bd [2022-01-10 06:03:13,321 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:03:13,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i [2022-01-10 06:03:13,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4510abbe2/67c5609b681840a2a8eae8760115af9e/FLAG01ba064bd [2022-01-10 06:03:13,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4510abbe2/67c5609b681840a2a8eae8760115af9e [2022-01-10 06:03:13,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:03:13,750 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:03:13,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:03:13,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:03:13,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:03:13,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:03:13" (1/1) ... [2022-01-10 06:03:13,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24548cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:13, skipping insertion in model container [2022-01-10 06:03:13,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:03:13" (1/1) ... [2022-01-10 06:03:13,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:03:13,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:03:14,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i[452,465] [2022-01-10 06:03:15,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:03:15,427 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:03:15,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:03:15,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i[452,465] [2022-01-10 06:03:15,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:03:15,602 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:03:15,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ddv-machzwd/ddv_machzwd_all.i[452,465] [2022-01-10 06:03:15,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:03:16,000 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:03:16,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16 WrapperNode [2022-01-10 06:03:16,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:03:16,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:03:16,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:03:16,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:03:16,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,271 INFO L137 Inliner]: procedures = 483, calls = 2708, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3252 [2022-01-10 06:03:16,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:03:16,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:03:16,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:03:16,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:03:16,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:03:16,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:03:16,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:03:16,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:03:16,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (1/1) ... [2022-01-10 06:03:16,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:03:16,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:03:16,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:03:16,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:03:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2022-01-10 06:03:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2022-01-10 06:03:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-01-10 06:03:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-01-10 06:03:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-10 06:03:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2022-01-10 06:03:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-01-10 06:03:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-01-10 06:03:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 06:03:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-01-10 06:03:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:03:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-01-10 06:03:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-01-10 06:03:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-01-10 06:03:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-01-10 06:03:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-10 06:03:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2022-01-10 06:03:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2022-01-10 06:03:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2022-01-10 06:03:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-10 06:03:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-10 06:03:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-01-10 06:03:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-01-10 06:03:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 06:03:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2022-01-10 06:03:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2022-01-10 06:03:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:03:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 06:03:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-01-10 06:03:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-01-10 06:03:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2022-01-10 06:03:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2022-01-10 06:03:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2022-01-10 06:03:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2022-01-10 06:03:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:03:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:03:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2022-01-10 06:03:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2022-01-10 06:03:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 06:03:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 06:03:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-01-10 06:03:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-10 06:03:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-10 06:03:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-01-10 06:03:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-01-10 06:03:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 06:03:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 06:03:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-01-10 06:03:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-01-10 06:03:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 06:03:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-01-10 06:03:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-01-10 06:03:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-01-10 06:03:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-01-10 06:03:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 06:03:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 06:03:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2022-01-10 06:03:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2022-01-10 06:03:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-01-10 06:03:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-01-10 06:03:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-01-10 06:03:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-01-10 06:03:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-01-10 06:03:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-01-10 06:03:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2022-01-10 06:03:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2022-01-10 06:03:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2022-01-10 06:03:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2022-01-10 06:03:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-01-10 06:03:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-01-10 06:03:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2022-01-10 06:03:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2022-01-10 06:03:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2022-01-10 06:03:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2022-01-10 06:03:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-01-10 06:03:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-01-10 06:03:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-01-10 06:03:16,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-01-10 06:03:16,989 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:03:16,990 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:03:26,853 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:03:26,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:03:26,861 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-10 06:03:26,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:03:26 BoogieIcfgContainer [2022-01-10 06:03:26,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:03:26,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:03:26,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:03:26,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:03:26,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:03:13" (1/3) ... [2022-01-10 06:03:26,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d2b08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:03:26, skipping insertion in model container [2022-01-10 06:03:26,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:03:16" (2/3) ... [2022-01-10 06:03:26,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d2b08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:03:26, skipping insertion in model container [2022-01-10 06:03:26,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:03:26" (3/3) ... [2022-01-10 06:03:26,875 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_all.i [2022-01-10 06:03:26,879 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:03:26,880 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:03:26,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:03:26,941 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 06:03:26,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:03:26,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 248 states have (on average 1.3588709677419355) internal successors, (337), 254 states have internal predecessors, (337), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-01-10 06:03:26,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 06:03:26,972 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:03:26,972 INFO L514 BasicCegarLoop]: 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] [2022-01-10 06:03:26,973 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:03:26,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:03:26,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1228378465, now seen corresponding path program 1 times [2022-01-10 06:03:26,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:03:26,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170226269] [2022-01-10 06:03:26,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:03:26,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:03:27,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:03:27,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:03:27,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:03:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:03:33,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 4273 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:03:33,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:03:33,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:03:33,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:03:33,273 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:03:33,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170226269] [2022-01-10 06:03:33,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170226269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:03:33,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:03:33,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:03:33,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704983259] [2022-01-10 06:03:33,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:03:33,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:03:33,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:03:33,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:03:33,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:03:33,331 INFO L87 Difference]: Start difference. First operand has 358 states, 248 states have (on average 1.3588709677419355) internal successors, (337), 254 states have internal predecessors, (337), 81 states have call successors, (81), 27 states have call predecessors, (81), 27 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:03:33,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:03:33,493 INFO L93 Difference]: Finished difference Result 714 states and 1041 transitions. [2022-01-10 06:03:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:03:33,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-01-10 06:03:33,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:03:33,509 INFO L225 Difference]: With dead ends: 714 [2022-01-10 06:03:33,509 INFO L226 Difference]: Without dead ends: 352 [2022-01-10 06:03:33,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:03:33,522 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 2 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:03:33,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 973 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:03:33,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-01-10 06:03:33,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 350. [2022-01-10 06:03:33,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 243 states have (on average 1.337448559670782) internal successors, (325), 249 states have internal predecessors, (325), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-01-10 06:03:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 482 transitions. [2022-01-10 06:03:33,590 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 482 transitions. Word has length 24 [2022-01-10 06:03:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:03:33,596 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 482 transitions. [2022-01-10 06:03:33,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:03:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 482 transitions. [2022-01-10 06:03:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 06:03:33,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:03:33,597 INFO L514 BasicCegarLoop]: 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] [2022-01-10 06:03:33,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 06:03:33,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:03:33,799 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:03:33,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:03:33,799 INFO L85 PathProgramCache]: Analyzing trace with hash -654680997, now seen corresponding path program 1 times [2022-01-10 06:03:33,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:03:33,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872704666] [2022-01-10 06:03:33,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:03:33,805 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:03:33,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:03:33,806 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:03:33,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:03:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:03:40,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 4303 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:03:40,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:03:40,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 06:03:40,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:03:40,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 06:03:40,263 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:03:40,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872704666] [2022-01-10 06:03:40,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872704666] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:03:40,264 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:03:40,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 06:03:40,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827806614] [2022-01-10 06:03:40,264 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:03:40,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:03:40,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:03:40,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:03:40,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:03:40,266 INFO L87 Difference]: Start difference. First operand 350 states and 482 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:03:40,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:03:40,643 INFO L93 Difference]: Finished difference Result 699 states and 964 transitions. [2022-01-10 06:03:40,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:03:40,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-01-10 06:03:40,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:03:40,648 INFO L225 Difference]: With dead ends: 699 [2022-01-10 06:03:40,648 INFO L226 Difference]: Without dead ends: 356 [2022-01-10 06:03:40,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:03:40,651 INFO L933 BasicCegarLoop]: 475 mSDtfsCounter, 172 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 06:03:40,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1473 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 06:03:40,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-01-10 06:03:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2022-01-10 06:03:40,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 249 states have (on average 1.3253012048192772) internal successors, (330), 255 states have internal predecessors, (330), 79 states have call successors, (79), 27 states have call predecessors, (79), 27 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-01-10 06:03:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 487 transitions. [2022-01-10 06:03:40,694 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 487 transitions. Word has length 28 [2022-01-10 06:03:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:03:40,694 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 487 transitions. [2022-01-10 06:03:40,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:03:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 487 transitions. [2022-01-10 06:03:40,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 06:03:40,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:03:40,696 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:03:40,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:03:40,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:03:40,916 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:03:40,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:03:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1043933461, now seen corresponding path program 2 times [2022-01-10 06:03:40,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:03:40,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127700090] [2022-01-10 06:03:40,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:03:40,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:03:40,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:03:40,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:03:40,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process