./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.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 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:09:49,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:09:49,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:09:49,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:09:49,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:09:49,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:09:49,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:09:49,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:09:49,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:09:49,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:09:49,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:09:49,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:09:49,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:09:49,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:09:49,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:09:49,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:09:49,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:09:49,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:09:49,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:09:49,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:09:49,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:09:49,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:09:49,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:09:49,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:09:49,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:09:49,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:09:49,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:09:49,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:09:49,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:09:49,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:09:49,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:09:49,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:09:49,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:09:49,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:09:49,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:09:49,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:09:49,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:09:49,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:09:49,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:09:49,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:09:49,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:09:49,744 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:09:49,768 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:09:49,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:09:49,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:09:49,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:09:49,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:09:49,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:09:49,771 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:09:49,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:09:49,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:09:49,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:09:49,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:09:49,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:09:49,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:09:49,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:09:49,774 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:09:49,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:09:49,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:09:49,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:09:49,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:09:49,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:09:49,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:09:49,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:09:49,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:09:49,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:09:49,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:09:49,776 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:09:49,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:09:49,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:09:49,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:09:49,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 [2021-11-06 18:09:50,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:09:50,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:09:50,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:09:50,047 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:09:50,048 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:09:50,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-06 18:09:50,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a830c59/494af4f81fe84cd8bc35a3f134dd2459/FLAG401d0f150 [2021-11-06 18:09:51,073 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:09:51,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-06 18:09:51,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a830c59/494af4f81fe84cd8bc35a3f134dd2459/FLAG401d0f150 [2021-11-06 18:09:51,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a830c59/494af4f81fe84cd8bc35a3f134dd2459 [2021-11-06 18:09:51,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:09:51,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:09:51,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:09:51,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:09:51,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:09:51,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:09:51" (1/1) ... [2021-11-06 18:09:51,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789938b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:51, skipping insertion in model container [2021-11-06 18:09:51,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:09:51" (1/1) ... [2021-11-06 18:09:51,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:09:51,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:09:55,915 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2021-11-06 18:09:55,918 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2021-11-06 18:09:55,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:09:55,979 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:09:56,369 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2021-11-06 18:09:56,370 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2021-11-06 18:09:56,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:09:56,599 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:09:56,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56 WrapperNode [2021-11-06 18:09:56,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:09:56,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:09:56,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:09:56,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:09:56,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:09:56,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:09:59,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:09:59,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:09:59,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:09:59,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:09:59,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:09:59,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:10:00,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:10:00,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:10:01,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:10:01,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:10:01,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:10:02,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:10:02,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:10:02,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:10:02,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:10:02,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (1/1) ... [2021-11-06 18:10:02,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:10:02,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:10:02,147 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 18:10:02,156 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 18:10:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:10:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:10:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:10:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:10:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:10:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:10:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:10:02,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:10:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:10:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:10:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:10:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:10:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:10:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:10:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:13:13,788 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:13:13,789 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:13:13,789 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,789 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,789 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,789 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,790 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,790 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,790 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,790 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#9: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,790 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:13:13,791 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:13:13,791 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,794 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:13:13,798 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#10: ldv_switch_2_#res := 0; [2021-11-06 18:13:13,799 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:13:13,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:13:13,858 INFO L299 CfgBuilder]: Removed 18843 assume(true) statements. [2021-11-06 18:13:13,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:13:13 BoogieIcfgContainer [2021-11-06 18:13:13,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:13:13,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:13:13,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:13:13,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:13:13,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:09:51" (1/3) ... [2021-11-06 18:13:13,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a61f052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:13:13, skipping insertion in model container [2021-11-06 18:13:13,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:09:56" (2/3) ... [2021-11-06 18:13:13,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a61f052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:13:13, skipping insertion in model container [2021-11-06 18:13:13,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:13:13" (3/3) ... [2021-11-06 18:13:13,884 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2021-11-06 18:13:13,889 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:13:13,890 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-06 18:13:13,999 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:13:14,006 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 18:13:14,008 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-06 18:13:14,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 16771 states, 16762 states have (on average 1.3407707910750508) internal successors, (22474), 16770 states have internal predecessors, (22474), 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 18:13:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-06 18:13:14,230 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:14,231 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] [2021-11-06 18:13:14,231 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 18:13:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:14,237 INFO L85 PathProgramCache]: Analyzing trace with hash -258267135, now seen corresponding path program 1 times [2021-11-06 18:13:14,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:14,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209994026] [2021-11-06 18:13:14,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:14,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:15,503 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 18:13:15,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:15,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209994026] [2021-11-06 18:13:15,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209994026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:15,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:15,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:15,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296258925] [2021-11-06 18:13:15,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:13:15,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:15,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:13:15,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:15,572 INFO L87 Difference]: Start difference. First operand has 16771 states, 16762 states have (on average 1.3407707910750508) internal successors, (22474), 16770 states have internal predecessors, (22474), 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 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 18:13:19,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:19,523 INFO L93 Difference]: Finished difference Result 39846 states and 53391 transitions. [2021-11-06 18:13:19,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:19,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-06 18:13:19,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:19,655 INFO L225 Difference]: With dead ends: 39846 [2021-11-06 18:13:19,656 INFO L226 Difference]: Without dead ends: 22272 [2021-11-06 18:13:19,700 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 18:13:19,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22272 states. [2021-11-06 18:13:20,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22272 to 22264. [2021-11-06 18:13:20,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22264 states, 22255 states have (on average 1.3113906987193888) internal successors, (29185), 22263 states have internal predecessors, (29185), 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 18:13:20,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22264 states to 22264 states and 29185 transitions. [2021-11-06 18:13:20,592 INFO L78 Accepts]: Start accepts. Automaton has 22264 states and 29185 transitions. Word has length 71 [2021-11-06 18:13:20,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:20,594 INFO L470 AbstractCegarLoop]: Abstraction has 22264 states and 29185 transitions. [2021-11-06 18:13:20,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 18:13:20,596 INFO L276 IsEmpty]: Start isEmpty. Operand 22264 states and 29185 transitions. [2021-11-06 18:13:20,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 18:13:20,611 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:20,611 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] [2021-11-06 18:13:20,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:13:20,612 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 18:13:20,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:20,616 INFO L85 PathProgramCache]: Analyzing trace with hash 12432041, now seen corresponding path program 1 times [2021-11-06 18:13:20,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:20,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784401661] [2021-11-06 18:13:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:20,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:21,262 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 18:13:21,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:21,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784401661] [2021-11-06 18:13:21,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784401661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:21,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:21,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:21,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432008508] [2021-11-06 18:13:21,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:13:21,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:21,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:13:21,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:21,265 INFO L87 Difference]: Start difference. First operand 22264 states and 29185 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 18:13:24,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:24,751 INFO L93 Difference]: Finished difference Result 65208 states and 85542 transitions. [2021-11-06 18:13:24,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:24,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2021-11-06 18:13:24,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:24,909 INFO L225 Difference]: With dead ends: 65208 [2021-11-06 18:13:24,911 INFO L226 Difference]: Without dead ends: 43052 [2021-11-06 18:13:24,965 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 18:13:25,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43052 states. [2021-11-06 18:13:26,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43052 to 43008. [2021-11-06 18:13:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43008 states, 42999 states have (on average 1.3124026140142795) internal successors, (56432), 43007 states have internal predecessors, (56432), 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 18:13:26,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43008 states to 43008 states and 56432 transitions. [2021-11-06 18:13:26,306 INFO L78 Accepts]: Start accepts. Automaton has 43008 states and 56432 transitions. Word has length 90 [2021-11-06 18:13:26,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:26,308 INFO L470 AbstractCegarLoop]: Abstraction has 43008 states and 56432 transitions. [2021-11-06 18:13:26,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 18:13:26,314 INFO L276 IsEmpty]: Start isEmpty. Operand 43008 states and 56432 transitions. [2021-11-06 18:13:26,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 18:13:26,328 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:26,328 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] [2021-11-06 18:13:26,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:13:26,328 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 18:13:26,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:26,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1581684744, now seen corresponding path program 1 times [2021-11-06 18:13:26,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:26,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652156355] [2021-11-06 18:13:26,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:26,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:26,971 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 18:13:26,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:26,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652156355] [2021-11-06 18:13:26,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652156355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:26,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:26,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:26,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273963816] [2021-11-06 18:13:26,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:13:26,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:26,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:13:26,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:26,973 INFO L87 Difference]: Start difference. First operand 43008 states and 56432 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 18:13:31,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:31,456 INFO L93 Difference]: Finished difference Result 122782 states and 161341 transitions. [2021-11-06 18:13:31,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:31,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2021-11-06 18:13:31,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:31,873 INFO L225 Difference]: With dead ends: 122782 [2021-11-06 18:13:31,874 INFO L226 Difference]: Without dead ends: 79882 [2021-11-06 18:13:31,985 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 18:13:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79882 states. [2021-11-06 18:13:33,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79882 to 79348. [2021-11-06 18:13:34,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79348 states, 79339 states have (on average 1.3165278110387073) internal successors, (104452), 79347 states have internal predecessors, (104452), 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 18:13:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79348 states to 79348 states and 104452 transitions. [2021-11-06 18:13:34,332 INFO L78 Accepts]: Start accepts. Automaton has 79348 states and 104452 transitions. Word has length 90 [2021-11-06 18:13:34,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:34,333 INFO L470 AbstractCegarLoop]: Abstraction has 79348 states and 104452 transitions. [2021-11-06 18:13:34,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 18:13:34,333 INFO L276 IsEmpty]: Start isEmpty. Operand 79348 states and 104452 transitions. [2021-11-06 18:13:34,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-06 18:13:34,357 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:34,358 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] [2021-11-06 18:13:34,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:13:34,358 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 18:13:34,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:34,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1495129010, now seen corresponding path program 1 times [2021-11-06 18:13:34,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:34,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238510860] [2021-11-06 18:13:34,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:34,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:35,265 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 18:13:35,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:35,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238510860] [2021-11-06 18:13:35,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238510860] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:35,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:35,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:35,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415788553] [2021-11-06 18:13:35,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:13:35,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:35,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:13:35,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:35,268 INFO L87 Difference]: Start difference. First operand 79348 states and 104452 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 18:13:39,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:39,889 INFO L93 Difference]: Finished difference Result 179790 states and 236665 transitions. [2021-11-06 18:13:39,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:39,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2021-11-06 18:13:39,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:40,149 INFO L225 Difference]: With dead ends: 179790 [2021-11-06 18:13:40,150 INFO L226 Difference]: Without dead ends: 100550 [2021-11-06 18:13:40,275 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 18:13:40,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100550 states. [2021-11-06 18:13:42,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100550 to 100530. [2021-11-06 18:13:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100530 states, 100521 states have (on average 1.3157051760328689) internal successors, (132256), 100529 states have internal predecessors, (132256), 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 18:13:43,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100530 states to 100530 states and 132256 transitions. [2021-11-06 18:13:43,033 INFO L78 Accepts]: Start accepts. Automaton has 100530 states and 132256 transitions. Word has length 103 [2021-11-06 18:13:43,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:43,034 INFO L470 AbstractCegarLoop]: Abstraction has 100530 states and 132256 transitions. [2021-11-06 18:13:43,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 18:13:43,035 INFO L276 IsEmpty]: Start isEmpty. Operand 100530 states and 132256 transitions. [2021-11-06 18:13:43,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-06 18:13:43,059 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:43,059 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] [2021-11-06 18:13:43,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:13:43,060 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 18:13:43,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:43,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1730380671, now seen corresponding path program 1 times [2021-11-06 18:13:43,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:43,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802459577] [2021-11-06 18:13:43,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:43,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:43,533 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 18:13:43,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:43,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802459577] [2021-11-06 18:13:43,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802459577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:43,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:43,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:43,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2362566] [2021-11-06 18:13:43,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:13:43,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:13:43,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:43,535 INFO L87 Difference]: Start difference. First operand 100530 states and 132256 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 18:13:48,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:48,014 INFO L93 Difference]: Finished difference Result 210809 states and 277345 transitions. [2021-11-06 18:13:48,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:48,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 106 [2021-11-06 18:13:48,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:48,296 INFO L225 Difference]: With dead ends: 210809 [2021-11-06 18:13:48,296 INFO L226 Difference]: Without dead ends: 110387 [2021-11-06 18:13:48,440 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 18:13:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110387 states. [2021-11-06 18:13:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110387 to 110385. [2021-11-06 18:13:50,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110385 states, 110376 states have (on average 1.3155124302384575) internal successors, (145201), 110384 states have internal predecessors, (145201), 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 18:13:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110385 states to 110385 states and 145201 transitions. [2021-11-06 18:13:51,022 INFO L78 Accepts]: Start accepts. Automaton has 110385 states and 145201 transitions. Word has length 106 [2021-11-06 18:13:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:51,022 INFO L470 AbstractCegarLoop]: Abstraction has 110385 states and 145201 transitions. [2021-11-06 18:13:51,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 18:13:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 110385 states and 145201 transitions. [2021-11-06 18:13:51,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-06 18:13:51,063 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:51,063 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:13:51,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:13:51,064 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 18:13:51,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:51,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1148524733, now seen corresponding path program 1 times [2021-11-06 18:13:51,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:51,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714459589] [2021-11-06 18:13:51,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:51,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat