./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/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 ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.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.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 20:05:58,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 20:05:58,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 20:05:58,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 20:05:58,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 20:05:58,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 20:05:58,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 20:05:58,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 20:05:58,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 20:05:58,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 20:05:58,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 20:05:58,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 20:05:58,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 20:05:58,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 20:05:58,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 20:05:58,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 20:05:58,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 20:05:58,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 20:05:58,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 20:05:58,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 20:05:58,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 20:05:58,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 20:05:58,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 20:05:58,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 20:05:58,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 20:05:58,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 20:05:58,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 20:05:58,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 20:05:58,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 20:05:58,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 20:05:58,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 20:05:58,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 20:05:58,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 20:05:58,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 20:05:58,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 20:05:58,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 20:05:58,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 20:05:58,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 20:05:58,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 20:05:58,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 20:05:58,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 20:05:58,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 20:05:58,445 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 20:05:58,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 20:05:58,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 20:05:58,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 20:05:58,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 20:05:58,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 20:05:58,447 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 20:05:58,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 20:05:58,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 20:05:58,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 20:05:58,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 20:05:58,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 20:05:58,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 20:05:58,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 20:05:58,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 20:05:58,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 20:05:58,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 20:05:58,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 20:05:58,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 20:05:58,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:05:58,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 20:05:58,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 20:05:58,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 20:05:58,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 20:05:58,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 20:05:58,451 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 20:05:58,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 20:05:58,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 20:05:58,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 20:05:58,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 [2021-11-06 20:05:58,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 20:05:58,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 20:05:58,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 20:05:58,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 20:05:58,653 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 20:05:58,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-06 20:05:58,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8f19cee/ad3ab256667d42e6916f1109df4952d2/FLAG70b6542c6 [2021-11-06 20:05:59,373 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 20:05:59,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-06 20:05:59,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8f19cee/ad3ab256667d42e6916f1109df4952d2/FLAG70b6542c6 [2021-11-06 20:05:59,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8f19cee/ad3ab256667d42e6916f1109df4952d2 [2021-11-06 20:05:59,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 20:05:59,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 20:05:59,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 20:05:59,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 20:05:59,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 20:05:59,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:05:59" (1/1) ... [2021-11-06 20:05:59,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744deb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:05:59, skipping insertion in model container [2021-11-06 20:05:59,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:05:59" (1/1) ... [2021-11-06 20:05:59,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 20:05:59,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 20:06:01,426 WARN L228 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-06 20:06:01,428 WARN L228 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-06 20:06:01,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:06:01,480 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 20:06:01,724 WARN L228 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2021-11-06 20:06:01,725 WARN L228 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2021-11-06 20:06:01,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:06:01,830 INFO L208 MainTranslator]: Completed translation [2021-11-06 20:06:01,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01 WrapperNode [2021-11-06 20:06:01,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 20:06:01,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 20:06:01,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 20:06:01,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 20:06:01,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:01,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:02,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 20:06:02,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 20:06:02,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 20:06:02,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 20:06:02,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:02,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:02,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:02,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:02,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:02,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:02,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:02,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 20:06:02,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 20:06:02,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 20:06:02,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 20:06:02,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (1/1) ... [2021-11-06 20:06:02,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:06:02,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 20:06:02,725 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) [2021-11-06 20:06:02,788 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 [2021-11-06 20:06:02,809 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 20:06:02,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 20:06:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:06:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 20:06:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 20:07:24,955 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 20:07:24,955 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 20:07:24,955 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 20:07:24,955 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 20:07:24,956 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 20:07:24,956 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:07:24,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:07:24,980 INFO L299 CfgBuilder]: Removed 2043 assume(true) statements. [2021-11-06 20:07:24,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:07:24 BoogieIcfgContainer [2021-11-06 20:07:24,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:07:24,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:07:24,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:07:24,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:07:24,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:05:59" (1/3) ... [2021-11-06 20:07:24,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41332176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:07:24, skipping insertion in model container [2021-11-06 20:07:24,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:06:01" (2/3) ... [2021-11-06 20:07:24,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41332176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:07:24, skipping insertion in model container [2021-11-06 20:07:24,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:07:24" (3/3) ... [2021-11-06 20:07:24,988 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2021-11-06 20:07:24,992 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:07:24,993 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2021-11-06 20:07:25,030 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:07:25,034 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 [2021-11-06 20:07:25,035 INFO L340 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-11-06 20:07:25,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 2466 states, 2440 states have (on average 1.4254098360655738) internal successors, (3478), 2465 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:25,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 20:07:25,092 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:07:25,093 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:07:25,093 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:07:25,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:07:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash 949678794, now seen corresponding path program 1 times [2021-11-06 20:07:25,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:07:25,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220353438] [2021-11-06 20:07:25,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:07:25,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:07:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:07:25,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:07:25,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:07:25,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220353438] [2021-11-06 20:07:25,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220353438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:07:25,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:07:25,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:07:25,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760668239] [2021-11-06 20:07:25,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:07:25,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:07:25,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:07:25,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:25,973 INFO L87 Difference]: Start difference. First operand has 2466 states, 2440 states have (on average 1.4254098360655738) internal successors, (3478), 2465 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:07:28,663 INFO L93 Difference]: Finished difference Result 5701 states and 8063 transitions. [2021-11-06 20:07:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:07:28,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-06 20:07:28,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:07:28,693 INFO L225 Difference]: With dead ends: 5701 [2021-11-06 20:07:28,694 INFO L226 Difference]: Without dead ends: 3123 [2021-11-06 20:07:28,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:28,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2021-11-06 20:07:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 3097. [2021-11-06 20:07:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3071 states have (on average 1.3497232171930966) internal successors, (4145), 3096 states have internal predecessors, (4145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4145 transitions. [2021-11-06 20:07:28,815 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4145 transitions. Word has length 93 [2021-11-06 20:07:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:07:28,815 INFO L470 AbstractCegarLoop]: Abstraction has 3097 states and 4145 transitions. [2021-11-06 20:07:28,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4145 transitions. [2021-11-06 20:07:28,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-06 20:07:28,819 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:07:28,819 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:07:28,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:07:28,819 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:07:28,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:07:28,820 INFO L85 PathProgramCache]: Analyzing trace with hash 591792664, now seen corresponding path program 1 times [2021-11-06 20:07:28,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:07:28,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369962458] [2021-11-06 20:07:28,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:07:28,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:07:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:07:29,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:07:29,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:07:29,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369962458] [2021-11-06 20:07:29,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369962458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:07:29,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:07:29,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:07:29,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544473420] [2021-11-06 20:07:29,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:07:29,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:07:29,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:07:29,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:29,142 INFO L87 Difference]: Start difference. First operand 3097 states and 4145 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:31,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:07:31,654 INFO L93 Difference]: Finished difference Result 8685 states and 11691 transitions. [2021-11-06 20:07:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:07:31,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-06 20:07:31,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:07:31,674 INFO L225 Difference]: With dead ends: 8685 [2021-11-06 20:07:31,674 INFO L226 Difference]: Without dead ends: 5744 [2021-11-06 20:07:31,681 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:31,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2021-11-06 20:07:31,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 5684. [2021-11-06 20:07:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5658 states have (on average 1.356486390950866) internal successors, (7675), 5683 states have internal predecessors, (7675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:31,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 7675 transitions. [2021-11-06 20:07:31,809 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 7675 transitions. Word has length 99 [2021-11-06 20:07:31,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:07:31,813 INFO L470 AbstractCegarLoop]: Abstraction has 5684 states and 7675 transitions. [2021-11-06 20:07:31,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:31,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 7675 transitions. [2021-11-06 20:07:31,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-06 20:07:31,818 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:07:31,819 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:07:31,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 20:07:31,819 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:07:31,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:07:31,825 INFO L85 PathProgramCache]: Analyzing trace with hash -88800783, now seen corresponding path program 1 times [2021-11-06 20:07:31,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:07:31,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222404576] [2021-11-06 20:07:31,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:07:31,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:07:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:07:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:07:32,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:07:32,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222404576] [2021-11-06 20:07:32,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222404576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:07:32,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:07:32,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:07:32,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843527025] [2021-11-06 20:07:32,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:07:32,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:07:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:07:32,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:32,159 INFO L87 Difference]: Start difference. First operand 5684 states and 7675 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:34,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:07:34,858 INFO L93 Difference]: Finished difference Result 15804 states and 21469 transitions. [2021-11-06 20:07:34,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:07:34,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-06 20:07:34,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:07:34,894 INFO L225 Difference]: With dead ends: 15804 [2021-11-06 20:07:34,894 INFO L226 Difference]: Without dead ends: 10276 [2021-11-06 20:07:34,906 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:34,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10276 states. [2021-11-06 20:07:35,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10276 to 10204. [2021-11-06 20:07:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10204 states, 10178 states have (on average 1.3642169384947926) internal successors, (13885), 10203 states have internal predecessors, (13885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:35,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10204 states to 10204 states and 13885 transitions. [2021-11-06 20:07:35,142 INFO L78 Accepts]: Start accepts. Automaton has 10204 states and 13885 transitions. Word has length 108 [2021-11-06 20:07:35,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:07:35,142 INFO L470 AbstractCegarLoop]: Abstraction has 10204 states and 13885 transitions. [2021-11-06 20:07:35,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 10204 states and 13885 transitions. [2021-11-06 20:07:35,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-06 20:07:35,151 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:07:35,151 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:07:35,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 20:07:35,152 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:07:35,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:07:35,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1652114132, now seen corresponding path program 1 times [2021-11-06 20:07:35,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:07:35,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558188866] [2021-11-06 20:07:35,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:07:35,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:07:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:07:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:07:35,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:07:35,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558188866] [2021-11-06 20:07:35,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558188866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:07:35,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:07:35,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:07:35,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735222115] [2021-11-06 20:07:35,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:07:35,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:07:35,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:07:35,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:35,470 INFO L87 Difference]: Start difference. First operand 10204 states and 13885 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:38,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:07:38,033 INFO L93 Difference]: Finished difference Result 30260 states and 41265 transitions. [2021-11-06 20:07:38,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:07:38,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-06 20:07:38,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:07:38,093 INFO L225 Difference]: With dead ends: 30260 [2021-11-06 20:07:38,093 INFO L226 Difference]: Without dead ends: 20212 [2021-11-06 20:07:38,112 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:38,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20212 states. [2021-11-06 20:07:38,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20212 to 20128. [2021-11-06 20:07:38,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20128 states, 20102 states have (on average 1.3666799323450403) internal successors, (27473), 20127 states have internal predecessors, (27473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20128 states to 20128 states and 27473 transitions. [2021-11-06 20:07:38,493 INFO L78 Accepts]: Start accepts. Automaton has 20128 states and 27473 transitions. Word has length 110 [2021-11-06 20:07:38,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:07:38,494 INFO L470 AbstractCegarLoop]: Abstraction has 20128 states and 27473 transitions. [2021-11-06 20:07:38,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 20128 states and 27473 transitions. [2021-11-06 20:07:38,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-06 20:07:38,499 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:07:38,499 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:07:38,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 20:07:38,499 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:07:38,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:07:38,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1415452834, now seen corresponding path program 1 times [2021-11-06 20:07:38,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:07:38,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007865499] [2021-11-06 20:07:38,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:07:38,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:07:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:07:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:07:38,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:07:38,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007865499] [2021-11-06 20:07:38,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007865499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:07:38,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:07:38,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:07:38,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137360633] [2021-11-06 20:07:38,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:07:38,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:07:38,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:07:38,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:38,784 INFO L87 Difference]: Start difference. First operand 20128 states and 27473 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:41,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:07:41,421 INFO L93 Difference]: Finished difference Result 40677 states and 55546 transitions. [2021-11-06 20:07:41,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:07:41,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-06 20:07:41,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:07:41,490 INFO L225 Difference]: With dead ends: 40677 [2021-11-06 20:07:41,490 INFO L226 Difference]: Without dead ends: 20705 [2021-11-06 20:07:41,525 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:41,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20705 states. [2021-11-06 20:07:41,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20705 to 20693. [2021-11-06 20:07:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20693 states, 20667 states have (on average 1.366236028451154) internal successors, (28236), 20692 states have internal predecessors, (28236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:42,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20693 states to 20693 states and 28236 transitions. [2021-11-06 20:07:42,032 INFO L78 Accepts]: Start accepts. Automaton has 20693 states and 28236 transitions. Word has length 113 [2021-11-06 20:07:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:07:42,032 INFO L470 AbstractCegarLoop]: Abstraction has 20693 states and 28236 transitions. [2021-11-06 20:07:42,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 20693 states and 28236 transitions. [2021-11-06 20:07:42,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-06 20:07:42,038 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:07:42,038 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:07:42,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 20:07:42,038 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:07:42,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:07:42,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1522816006, now seen corresponding path program 1 times [2021-11-06 20:07:42,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:07:42,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977393737] [2021-11-06 20:07:42,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:07:42,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:07:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:07:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:07:42,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:07:42,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977393737] [2021-11-06 20:07:42,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977393737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:07:42,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:07:42,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:07:42,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976771131] [2021-11-06 20:07:42,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:07:42,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:07:42,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:07:42,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:42,304 INFO L87 Difference]: Start difference. First operand 20693 states and 28236 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:45,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:07:45,125 INFO L93 Difference]: Finished difference Result 55687 states and 76231 transitions. [2021-11-06 20:07:45,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:07:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-06 20:07:45,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:07:45,201 INFO L225 Difference]: With dead ends: 55687 [2021-11-06 20:07:45,202 INFO L226 Difference]: Without dead ends: 35150 [2021-11-06 20:07:45,249 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:45,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35150 states. [2021-11-06 20:07:45,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35150 to 35042. [2021-11-06 20:07:45,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35042 states, 35016 states have (on average 1.3688313913639478) internal successors, (47931), 35041 states have internal predecessors, (47931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:45,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35042 states to 35042 states and 47931 transitions. [2021-11-06 20:07:45,980 INFO L78 Accepts]: Start accepts. Automaton has 35042 states and 47931 transitions. Word has length 115 [2021-11-06 20:07:45,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:07:45,980 INFO L470 AbstractCegarLoop]: Abstraction has 35042 states and 47931 transitions. [2021-11-06 20:07:45,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:45,981 INFO L276 IsEmpty]: Start isEmpty. Operand 35042 states and 47931 transitions. [2021-11-06 20:07:45,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-06 20:07:45,983 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:07:45,983 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:07:45,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 20:07:45,983 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:07:45,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:07:45,984 INFO L85 PathProgramCache]: Analyzing trace with hash -355735077, now seen corresponding path program 1 times [2021-11-06 20:07:45,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:07:45,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484648304] [2021-11-06 20:07:45,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:07:45,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:07:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:07:46,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:07:46,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:07:46,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484648304] [2021-11-06 20:07:46,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484648304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:07:46,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:07:46,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:07:46,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62563835] [2021-11-06 20:07:46,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:07:46,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:07:46,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:07:46,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:46,246 INFO L87 Difference]: Start difference. First operand 35042 states and 47931 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:07:49,521 INFO L93 Difference]: Finished difference Result 99190 states and 135629 transitions. [2021-11-06 20:07:49,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:07:49,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-06 20:07:49,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:07:49,643 INFO L225 Difference]: With dead ends: 99190 [2021-11-06 20:07:49,644 INFO L226 Difference]: Without dead ends: 64304 [2021-11-06 20:07:49,699 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:49,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64304 states. [2021-11-06 20:07:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64304 to 64128. [2021-11-06 20:07:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64128 states, 64102 states have (on average 1.3658856197934541) internal successors, (87556), 64127 states have internal predecessors, (87556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64128 states to 64128 states and 87556 transitions. [2021-11-06 20:07:51,020 INFO L78 Accepts]: Start accepts. Automaton has 64128 states and 87556 transitions. Word has length 118 [2021-11-06 20:07:51,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:07:51,020 INFO L470 AbstractCegarLoop]: Abstraction has 64128 states and 87556 transitions. [2021-11-06 20:07:51,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:51,021 INFO L276 IsEmpty]: Start isEmpty. Operand 64128 states and 87556 transitions. [2021-11-06 20:07:51,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-06 20:07:51,031 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:07:51,032 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:07:51,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 20:07:51,032 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:07:51,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:07:51,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1202251336, now seen corresponding path program 1 times [2021-11-06 20:07:51,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:07:51,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131552227] [2021-11-06 20:07:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:07:51,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:07:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:07:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 20:07:51,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:07:51,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131552227] [2021-11-06 20:07:51,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131552227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:07:51,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:07:51,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:07:51,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207948585] [2021-11-06 20:07:51,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:07:51,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:07:51,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:07:51,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:51,342 INFO L87 Difference]: Start difference. First operand 64128 states and 87556 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:53,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:07:53,003 INFO L93 Difference]: Finished difference Result 145192 states and 197976 transitions. [2021-11-06 20:07:53,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:07:53,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-11-06 20:07:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:07:53,153 INFO L225 Difference]: With dead ends: 145192 [2021-11-06 20:07:53,153 INFO L226 Difference]: Without dead ends: 81300 [2021-11-06 20:07:53,230 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:53,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81300 states. [2021-11-06 20:07:54,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81300 to 81184. [2021-11-06 20:07:54,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81184 states, 81158 states have (on average 1.362133123043939) internal successors, (110548), 81183 states have internal predecessors, (110548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:55,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81184 states to 81184 states and 110548 transitions. [2021-11-06 20:07:55,082 INFO L78 Accepts]: Start accepts. Automaton has 81184 states and 110548 transitions. Word has length 145 [2021-11-06 20:07:55,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:07:55,083 INFO L470 AbstractCegarLoop]: Abstraction has 81184 states and 110548 transitions. [2021-11-06 20:07:55,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:07:55,083 INFO L276 IsEmpty]: Start isEmpty. Operand 81184 states and 110548 transitions. [2021-11-06 20:07:55,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-06 20:07:55,093 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:07:55,093 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:07:55,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 20:07:55,094 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:07:55,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:07:55,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1522539017, now seen corresponding path program 1 times [2021-11-06 20:07:55,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:07:55,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300861354] [2021-11-06 20:07:55,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:07:55,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:07:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:07:55,342 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:07:55,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:07:55,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300861354] [2021-11-06 20:07:55,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300861354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:07:55,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:07:55,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:07:55,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823378546] [2021-11-06 20:07:55,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:07:55,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:07:55,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:07:55,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:07:55,343 INFO L87 Difference]: Start difference. First operand 81184 states and 110548 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:08:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:08:00,106 INFO L93 Difference]: Finished difference Result 239864 states and 327512 transitions. [2021-11-06 20:08:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:08:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-11-06 20:08:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:08:00,526 INFO L225 Difference]: With dead ends: 239864 [2021-11-06 20:08:00,526 INFO L226 Difference]: Without dead ends: 158916 [2021-11-06 20:08:00,618 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:08:00,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158916 states. [2021-11-06 20:08:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158916 to 158864. [2021-11-06 20:08:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158864 states, 158838 states have (on average 1.3644342034022086) internal successors, (216724), 158863 states have internal predecessors, (216724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:08:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158864 states to 158864 states and 216724 transitions. [2021-11-06 20:08:04,082 INFO L78 Accepts]: Start accepts. Automaton has 158864 states and 216724 transitions. Word has length 145 [2021-11-06 20:08:04,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:08:04,082 INFO L470 AbstractCegarLoop]: Abstraction has 158864 states and 216724 transitions. [2021-11-06 20:08:04,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:08:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 158864 states and 216724 transitions. [2021-11-06 20:08:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-06 20:08:04,093 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:08:04,093 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:08:04,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 20:08:04,093 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:08:04,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:08:04,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1966439691, now seen corresponding path program 1 times [2021-11-06 20:08:04,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:08:04,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188308389] [2021-11-06 20:08:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:08:04,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:08:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:08:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:08:04,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:08:04,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188308389] [2021-11-06 20:08:04,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188308389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:08:04,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:08:04,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:08:04,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191951671] [2021-11-06 20:08:04,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:08:04,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:08:04,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:08:04,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:08:04,612 INFO L87 Difference]: Start difference. First operand 158864 states and 216724 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:08:10,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:08:10,995 INFO L93 Difference]: Finished difference Result 395320 states and 539960 transitions. [2021-11-06 20:08:10,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:08:10,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-11-06 20:08:10,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:08:11,562 INFO L225 Difference]: With dead ends: 395320 [2021-11-06 20:08:11,562 INFO L226 Difference]: Without dead ends: 235629 [2021-11-06 20:08:11,734 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:08:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235629 states. [2021-11-06 20:08:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235629 to 235577. [2021-11-06 20:08:16,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235577 states, 235551 states have (on average 1.3660948159846487) internal successors, (321785), 235576 states have internal predecessors, (321785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:08:17,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235577 states to 235577 states and 321785 transitions. [2021-11-06 20:08:17,396 INFO L78 Accepts]: Start accepts. Automaton has 235577 states and 321785 transitions. Word has length 145 [2021-11-06 20:08:17,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:08:17,396 INFO L470 AbstractCegarLoop]: Abstraction has 235577 states and 321785 transitions. [2021-11-06 20:08:17,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:08:17,396 INFO L276 IsEmpty]: Start isEmpty. Operand 235577 states and 321785 transitions. [2021-11-06 20:08:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-06 20:08:17,402 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:08:17,402 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:08:17,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 20:08:17,402 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-06 20:08:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:08:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1079319639, now seen corresponding path program 1 times [2021-11-06 20:08:17,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:08:17,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132065681] [2021-11-06 20:08:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:08:17,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:08:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:08:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 20:08:17,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:08:17,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132065681] [2021-11-06 20:08:17,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132065681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:08:17,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:08:17,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:08:17,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722918136] [2021-11-06 20:08:17,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:08:17,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:08:17,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:08:17,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:08:17,702 INFO L87 Difference]: Start difference. First operand 235577 states and 321785 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)