./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY --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 0b76be36f18ad21ad9f8bdc1086d9a5532c87a2c14457e790c7f2f104cdb0ee5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:23:05,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:23:05,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:23:05,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:23:05,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:23:05,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:23:05,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:23:05,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:23:05,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:23:05,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:23:05,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:23:05,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:23:05,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:23:05,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:23:05,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:23:05,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:23:05,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:23:05,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:23:05,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:23:05,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:23:05,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:23:05,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:23:05,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:23:05,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:23:05,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:23:05,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:23:05,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:23:05,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:23:05,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:23:05,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:23:05,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:23:05,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:23:05,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:23:05,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:23:05,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:23:05,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:23:05,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:23:05,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:23:05,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:23:05,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:23:05,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:23:05,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 07:23:05,843 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:23:05,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:23:05,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:23:05,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:23:05,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:23:05,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:23:05,847 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:23:05,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:23:05,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:23:05,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:23:05,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:23:05,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:23:05,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:23:05,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:23:05,849 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:23:05,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:23:05,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:23:05,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:23:05,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:23:05,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:23:05,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:23:05,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:23:05,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:23:05,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:23:05,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:23:05,853 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:23:05,853 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:23:05,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:23:05,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:23:05,854 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b76be36f18ad21ad9f8bdc1086d9a5532c87a2c14457e790c7f2f104cdb0ee5 [2021-11-07 07:23:06,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:23:06,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:23:06,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:23:06,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:23:06,256 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:23:06,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i [2021-11-07 07:23:06,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/data/59bf8519c/629946542d3e48b4b2dc68108fa359be/FLAG5d2be6d78 [2021-11-07 07:23:07,579 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:23:07,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i [2021-11-07 07:23:07,633 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/data/59bf8519c/629946542d3e48b4b2dc68108fa359be/FLAG5d2be6d78 [2021-11-07 07:23:07,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/data/59bf8519c/629946542d3e48b4b2dc68108fa359be [2021-11-07 07:23:07,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:23:07,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:23:07,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:23:07,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:23:07,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:23:07,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:07" (1/1) ... [2021-11-07 07:23:07,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32099ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:07, skipping insertion in model container [2021-11-07 07:23:07,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:07" (1/1) ... [2021-11-07 07:23:07,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:23:08,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:23:12,116 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i[385601,385614] [2021-11-07 07:23:12,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:23:12,348 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:23:12,951 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i[385601,385614] [2021-11-07 07:23:12,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:23:13,194 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:23:13,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13 WrapperNode [2021-11-07 07:23:13,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:23:13,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:23:13,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:23:13,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:23:13,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:13,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:15,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:23:15,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:23:15,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:23:15,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:23:15,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:15,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:15,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:15,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:17,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:18,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:18,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:18,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:23:18,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:23:18,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:23:18,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:23:18,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (1/1) ... [2021-11-07 07:23:18,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:23:18,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:23:18,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:23:18,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081dc9ca-733b-4a1f-987a-1679cfa24dbb/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:23:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 07:23:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:23:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 07:23:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 07:23:18,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 07:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 07:23:18,537 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_pervif_cmd [2021-11-07 07:23:18,537 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_pervif_cmd [2021-11-07 07:23:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:23:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:23:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bss_start [2021-11-07 07:23:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bss_start [2021-11-07 07:23:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 07:23:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 07:23:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_enable_bsses [2021-11-07 07:23:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_enable_bsses [2021-11-07 07:23:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:23:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 07:23:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 07:23:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:23:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:23:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_cmd [2021-11-07 07:23:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_cmd [2021-11-07 07:25:07,936 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:25:07,936 INFO L299 CfgBuilder]: Removed 7922 assume(true) statements. [2021-11-07 07:25:07,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:25:07 BoogieIcfgContainer [2021-11-07 07:25:07,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:25:07,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:25:07,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:25:07,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:25:07,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:23:07" (1/3) ... [2021-11-07 07:25:07,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a17d586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:25:07, skipping insertion in model container [2021-11-07 07:25:07,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:13" (2/3) ... [2021-11-07 07:25:07,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a17d586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:25:07, skipping insertion in model container [2021-11-07 07:25:07,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:25:07" (3/3) ... [2021-11-07 07:25:07,959 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i [2021-11-07 07:25:07,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:25:07,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-07 07:25:08,069 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:25:08,078 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 [2021-11-07 07:25:08,080 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-07 07:25:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 8322 states, 8174 states have (on average 1.4219476388549057) internal successors, (11623), 8218 states have internal predecessors, (11623), 101 states have call successors, (101), 4 states have call predecessors, (101), 4 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2021-11-07 07:25:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 07:25:08,306 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:08,307 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 07:25:08,308 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 07:25:08,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:08,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2017409674, now seen corresponding path program 1 times [2021-11-07 07:25:08,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:08,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787790007] [2021-11-07 07:25:08,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:08,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:09,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:09,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787790007] [2021-11-07 07:25:09,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787790007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:09,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:09,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:09,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722080688] [2021-11-07 07:25:09,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:25:09,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:09,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:25:09,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:09,353 INFO L87 Difference]: Start difference. First operand has 8322 states, 8174 states have (on average 1.4219476388549057) internal successors, (11623), 8218 states have internal predecessors, (11623), 101 states have call successors, (101), 4 states have call predecessors, (101), 4 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-07 07:25:12,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:12,998 INFO L93 Difference]: Finished difference Result 24013 states and 34573 transitions. [2021-11-07 07:25:12,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:25:12,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-07 07:25:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:13,146 INFO L225 Difference]: With dead ends: 24013 [2021-11-07 07:25:13,146 INFO L226 Difference]: Without dead ends: 15471 [2021-11-07 07:25:13,267 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 [2021-11-07 07:25:13,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15471 states. [2021-11-07 07:25:14,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15471 to 15445. [2021-11-07 07:25:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15445 states, 15193 states have (on average 1.3897189495162245) internal successors, (21114), 15238 states have internal predecessors, (21114), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-07 07:25:14,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15445 states to 15445 states and 21720 transitions. [2021-11-07 07:25:14,244 INFO L78 Accepts]: Start accepts. Automaton has 15445 states and 21720 transitions. Word has length 6 [2021-11-07 07:25:14,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:14,245 INFO L470 AbstractCegarLoop]: Abstraction has 15445 states and 21720 transitions. [2021-11-07 07:25:14,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-07 07:25:14,247 INFO L276 IsEmpty]: Start isEmpty. Operand 15445 states and 21720 transitions. [2021-11-07 07:25:14,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 07:25:14,248 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:14,248 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:14,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:25:14,249 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 07:25:14,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:14,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1884783199, now seen corresponding path program 1 times [2021-11-07 07:25:14,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:14,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539381214] [2021-11-07 07:25:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:14,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:14,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:14,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539381214] [2021-11-07 07:25:14,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539381214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:14,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:14,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:14,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042580379] [2021-11-07 07:25:14,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:25:14,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:14,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:25:14,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:14,615 INFO L87 Difference]: Start difference. First operand 15445 states and 21720 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-07 07:25:17,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:17,440 INFO L93 Difference]: Finished difference Result 15445 states and 21720 transitions. [2021-11-07 07:25:17,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:25:17,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-07 07:25:17,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:17,567 INFO L225 Difference]: With dead ends: 15445 [2021-11-07 07:25:17,567 INFO L226 Difference]: Without dead ends: 15443 [2021-11-07 07:25:17,576 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 [2021-11-07 07:25:17,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15443 states. [2021-11-07 07:25:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15443 to 15443. [2021-11-07 07:25:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15443 states, 15192 states have (on average 1.3896787783043707) internal successors, (21112), 15236 states have internal predecessors, (21112), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-07 07:25:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15443 states to 15443 states and 21718 transitions. [2021-11-07 07:25:18,907 INFO L78 Accepts]: Start accepts. Automaton has 15443 states and 21718 transitions. Word has length 7 [2021-11-07 07:25:18,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:18,912 INFO L470 AbstractCegarLoop]: Abstraction has 15443 states and 21718 transitions. [2021-11-07 07:25:18,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-07 07:25:18,912 INFO L276 IsEmpty]: Start isEmpty. Operand 15443 states and 21718 transitions. [2021-11-07 07:25:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 07:25:18,913 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:18,915 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:18,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:25:18,916 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 07:25:18,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:18,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1701289332, now seen corresponding path program 1 times [2021-11-07 07:25:18,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:18,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431870664] [2021-11-07 07:25:18,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:18,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:19,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:19,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431870664] [2021-11-07 07:25:19,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431870664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:19,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:19,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:19,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748280145] [2021-11-07 07:25:19,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:25:19,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:19,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:25:19,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:19,512 INFO L87 Difference]: Start difference. First operand 15443 states and 21718 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-07 07:25:22,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:22,212 INFO L93 Difference]: Finished difference Result 15443 states and 21718 transitions. [2021-11-07 07:25:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:25:22,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-07 07:25:22,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:22,398 INFO L225 Difference]: With dead ends: 15443 [2021-11-07 07:25:22,399 INFO L226 Difference]: Without dead ends: 15438 [2021-11-07 07:25:22,409 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 [2021-11-07 07:25:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15438 states. [2021-11-07 07:25:23,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15438 to 15438. [2021-11-07 07:25:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15438 states, 15188 states have (on average 1.389583882012115) internal successors, (21105), 15231 states have internal predecessors, (21105), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-07 07:25:23,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15438 states to 15438 states and 21711 transitions. [2021-11-07 07:25:23,461 INFO L78 Accepts]: Start accepts. Automaton has 15438 states and 21711 transitions. Word has length 8 [2021-11-07 07:25:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:23,462 INFO L470 AbstractCegarLoop]: Abstraction has 15438 states and 21711 transitions. [2021-11-07 07:25:23,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-07 07:25:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 15438 states and 21711 transitions. [2021-11-07 07:25:23,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 07:25:23,477 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:23,477 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] [2021-11-07 07:25:23,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:25:23,478 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 07:25:23,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:23,479 INFO L85 PathProgramCache]: Analyzing trace with hash 825537041, now seen corresponding path program 1 times [2021-11-07 07:25:23,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:23,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244306431] [2021-11-07 07:25:23,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:23,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:23,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:23,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244306431] [2021-11-07 07:25:23,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244306431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:23,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:23,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:23,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539064413] [2021-11-07 07:25:23,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:25:23,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:23,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:25:23,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:23,872 INFO L87 Difference]: Start difference. First operand 15438 states and 21711 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-11-07 07:25:25,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:25,850 INFO L93 Difference]: Finished difference Result 30922 states and 43468 transitions. [2021-11-07 07:25:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:25:25,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2021-11-07 07:25:25,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:25,924 INFO L225 Difference]: With dead ends: 30922 [2021-11-07 07:25:25,924 INFO L226 Difference]: Without dead ends: 15486 [2021-11-07 07:25:26,007 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 [2021-11-07 07:25:26,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15486 states. [2021-11-07 07:25:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15486 to 15438. [2021-11-07 07:25:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15438 states, 15188 states have (on average 1.3801027126678957) internal successors, (20961), 15231 states have internal predecessors, (20961), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-07 07:25:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15438 states to 15438 states and 21567 transitions. [2021-11-07 07:25:26,809 INFO L78 Accepts]: Start accepts. Automaton has 15438 states and 21567 transitions. Word has length 36 [2021-11-07 07:25:26,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:26,809 INFO L470 AbstractCegarLoop]: Abstraction has 15438 states and 21567 transitions. [2021-11-07 07:25:26,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-11-07 07:25:26,810 INFO L276 IsEmpty]: Start isEmpty. Operand 15438 states and 21567 transitions. [2021-11-07 07:25:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 07:25:26,815 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:26,815 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] [2021-11-07 07:25:26,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:25:26,816 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 07:25:26,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:26,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1750950292, now seen corresponding path program 1 times [2021-11-07 07:25:26,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:26,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632130028] [2021-11-07 07:25:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:26,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:27,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:27,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632130028] [2021-11-07 07:25:27,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632130028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:27,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:27,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:25:27,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508156986] [2021-11-07 07:25:27,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:25:27,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:27,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:25:27,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:25:27,543 INFO L87 Difference]: Start difference. First operand 15438 states and 21567 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-11-07 07:25:35,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:35,844 INFO L93 Difference]: Finished difference Result 125800 states and 174587 transitions. [2021-11-07 07:25:35,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:25:35,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2021-11-07 07:25:35,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:36,451 INFO L225 Difference]: With dead ends: 125800 [2021-11-07 07:25:36,451 INFO L226 Difference]: Without dead ends: 110364 [2021-11-07 07:25:36,566 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:25:36,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110364 states. [2021-11-07 07:25:39,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110364 to 15456. [2021-11-07 07:25:39,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15456 states, 15206 states have (on average 1.3796527686439564) internal successors, (20979), 15249 states have internal predecessors, (20979), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-07 07:25:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15456 states to 15456 states and 21585 transitions. [2021-11-07 07:25:39,634 INFO L78 Accepts]: Start accepts. Automaton has 15456 states and 21585 transitions. Word has length 39 [2021-11-07 07:25:39,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:39,635 INFO L470 AbstractCegarLoop]: Abstraction has 15456 states and 21585 transitions. [2021-11-07 07:25:39,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-11-07 07:25:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand 15456 states and 21585 transitions. [2021-11-07 07:25:39,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 07:25:39,646 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:39,646 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] [2021-11-07 07:25:39,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 07:25:39,647 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 07:25:39,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:39,648 INFO L85 PathProgramCache]: Analyzing trace with hash 504688916, now seen corresponding path program 1 times [2021-11-07 07:25:39,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:39,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498899468] [2021-11-07 07:25:39,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:39,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:40,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:40,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498899468] [2021-11-07 07:25:40,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498899468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:40,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:40,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:25:40,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183793908] [2021-11-07 07:25:40,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:25:40,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:40,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:25:40,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:25:40,085 INFO L87 Difference]: Start difference. First operand 15456 states and 21585 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-11-07 07:25:48,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:48,898 INFO L93 Difference]: Finished difference Result 126474 states and 175425 transitions. [2021-11-07 07:25:48,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:25:48,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2021-11-07 07:25:48,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:49,274 INFO L225 Difference]: With dead ends: 126474 [2021-11-07 07:25:49,275 INFO L226 Difference]: Without dead ends: 111020 [2021-11-07 07:25:49,386 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:25:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111020 states. [2021-11-07 07:25:52,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111020 to 15468. [2021-11-07 07:25:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15468 states, 15218 states have (on average 1.3793533972926797) internal successors, (20991), 15261 states have internal predecessors, (20991), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-07 07:25:52,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15468 states to 15468 states and 21597 transitions. [2021-11-07 07:25:52,420 INFO L78 Accepts]: Start accepts. Automaton has 15468 states and 21597 transitions. Word has length 39 [2021-11-07 07:25:52,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:52,421 INFO L470 AbstractCegarLoop]: Abstraction has 15468 states and 21597 transitions. [2021-11-07 07:25:52,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-11-07 07:25:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand 15468 states and 21597 transitions. [2021-11-07 07:25:52,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 07:25:52,427 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:52,428 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] [2021-11-07 07:25:52,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 07:25:52,428 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 07:25:52,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:52,429 INFO L85 PathProgramCache]: Analyzing trace with hash -31052317, now seen corresponding path program 1 times [2021-11-07 07:25:52,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:52,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627792249] [2021-11-07 07:25:52,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:52,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:52,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:52,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627792249] [2021-11-07 07:25:52,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627792249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:52,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:52,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:25:52,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477513409] [2021-11-07 07:25:52,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:25:52,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:25:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:52,842 INFO L87 Difference]: Start difference. First operand 15468 states and 21597 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2021-11-07 07:25:58,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:58,028 INFO L93 Difference]: Finished difference Result 71900 states and 100201 transitions. [2021-11-07 07:25:58,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:25:58,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2021-11-07 07:25:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:58,239 INFO L225 Difference]: With dead ends: 71900 [2021-11-07 07:25:58,240 INFO L226 Difference]: Without dead ends: 56434 [2021-11-07 07:25:58,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:25:58,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56434 states. [2021-11-07 07:26:01,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56434 to 15492. [2021-11-07 07:26:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15492 states, 15242 states have (on average 1.378756068757381) internal successors, (21015), 15285 states have internal predecessors, (21015), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-07 07:26:01,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 21621 transitions. [2021-11-07 07:26:01,270 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 21621 transitions. Word has length 42 [2021-11-07 07:26:01,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:01,271 INFO L470 AbstractCegarLoop]: Abstraction has 15492 states and 21621 transitions. [2021-11-07 07:26:01,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2021-11-07 07:26:01,271 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 21621 transitions. [2021-11-07 07:26:01,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 07:26:01,277 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:01,278 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] [2021-11-07 07:26:01,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 07:26:01,278 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 07:26:01,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:01,279 INFO L85 PathProgramCache]: Analyzing trace with hash 514761064, now seen corresponding path program 1 times [2021-11-07 07:26:01,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:01,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602867436] [2021-11-07 07:26:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:01,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:26:08,357 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.