./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro --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 14f81a0d6a388b613f6256ef89322a578d67b2b4527606e37681918ec5903dd9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:15:48,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:15:48,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:15:48,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:15:48,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:15:48,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:15:48,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:15:48,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:15:48,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:15:48,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:15:48,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:15:48,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:15:48,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:15:48,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:15:48,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:15:48,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:15:48,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:15:48,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:15:48,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:15:48,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:15:48,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:15:48,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:15:48,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:15:48,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:15:48,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:15:48,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:15:48,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:15:48,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:15:48,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:15:48,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:15:48,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:15:48,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:15:48,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:15:48,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:15:48,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:15:48,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:15:48,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:15:48,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:15:48,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:15:48,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:15:48,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:15:48,620 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:15:48,666 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:15:48,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:15:48,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:15:48,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:15:48,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:15:48,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:15:48,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:15:48,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:15:48,670 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:15:48,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:15:48,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:15:48,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:15:48,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:15:48,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:15:48,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:15:48,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:15:48,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:15:48,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:15:48,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:15:48,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:15:48,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:15:48,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:15:48,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:15:48,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:15:48,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:15:48,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:15:48,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:15:48,678 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:15:48,678 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:15:48,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:15:48,679 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_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14f81a0d6a388b613f6256ef89322a578d67b2b4527606e37681918ec5903dd9 [2022-11-18 20:15:49,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:15:49,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:15:49,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:15:49,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:15:49,070 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:15:49,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c [2022-11-18 20:15:49,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data/cb7435ecb/0988a7db7df74a8da8adef3105286f80/FLAG688df038b [2022-11-18 20:15:49,761 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:15:49,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c [2022-11-18 20:15:49,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data/cb7435ecb/0988a7db7df74a8da8adef3105286f80/FLAG688df038b [2022-11-18 20:15:49,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data/cb7435ecb/0988a7db7df74a8da8adef3105286f80 [2022-11-18 20:15:50,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:15:50,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:15:50,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:15:50,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:15:50,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:15:50,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:15:49" (1/1) ... [2022-11-18 20:15:50,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bbdc70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50, skipping insertion in model container [2022-11-18 20:15:50,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:15:49" (1/1) ... [2022-11-18 20:15:50,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:15:50,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:15:50,306 WARN L234 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_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c[1014,1027] [2022-11-18 20:15:50,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:15:50,614 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:15:50,625 WARN L234 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_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c[1014,1027] [2022-11-18 20:15:50,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:15:50,897 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:15:50,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50 WrapperNode [2022-11-18 20:15:50,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:15:50,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:15:50,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:15:50,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:15:50,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:50,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,099 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2072 [2022-11-18 20:15:51,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:15:51,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:15:51,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:15:51,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:15:51,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,177 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:15:51,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:15:51,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:15:51,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:15:51,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (1/1) ... [2022-11-18 20:15:51,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:15:51,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:15:51,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:15:51,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:15:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:15:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:15:51,821 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:15:51,823 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:15:54,611 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:15:54,622 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:15:54,622 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:15:54,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:15:54 BoogieIcfgContainer [2022-11-18 20:15:54,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:15:54,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:15:54,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:15:54,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:15:54,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:15:49" (1/3) ... [2022-11-18 20:15:54,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b74efd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:15:54, skipping insertion in model container [2022-11-18 20:15:54,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:15:50" (2/3) ... [2022-11-18 20:15:54,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b74efd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:15:54, skipping insertion in model container [2022-11-18 20:15:54,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:15:54" (3/3) ... [2022-11-18 20:15:54,634 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.2.prop1-func-interl.c [2022-11-18 20:15:54,654 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:15:54,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:15:54,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:15:54,718 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7480fe12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:15:54,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:15:54,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 332 states, 330 states have (on average 1.6606060606060606) internal successors, (548), 331 states have internal predecessors, (548), 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) [2022-11-18 20:15:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 20:15:54,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:15:54,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:54,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:15:54,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:54,739 INFO L85 PathProgramCache]: Analyzing trace with hash -316675298, now seen corresponding path program 1 times [2022-11-18 20:15:54,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:54,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969820350] [2022-11-18 20:15:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:54,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:55,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:55,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969820350] [2022-11-18 20:15:55,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969820350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:55,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:55,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:15:55,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841373849] [2022-11-18 20:15:55,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:55,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:15:55,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:55,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:15:55,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:15:55,421 INFO L87 Difference]: Start difference. First operand has 332 states, 330 states have (on average 1.6606060606060606) internal successors, (548), 331 states have internal predecessors, (548), 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 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-11-18 20:15:55,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:15:55,664 INFO L93 Difference]: Finished difference Result 1021 states and 1697 transitions. [2022-11-18 20:15:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:15:55,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-11-18 20:15:55,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:15:55,694 INFO L225 Difference]: With dead ends: 1021 [2022-11-18 20:15:55,695 INFO L226 Difference]: Without dead ends: 691 [2022-11-18 20:15:55,699 INFO L412 NwaCegarLoop]: 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 [2022-11-18 20:15:55,702 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 1602 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:15:55,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 1268 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:15:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-11-18 20:15:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 330. [2022-11-18 20:15:55,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 329 states have (on average 1.6534954407294833) internal successors, (544), 329 states have internal predecessors, (544), 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) [2022-11-18 20:15:55,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 544 transitions. [2022-11-18 20:15:55,764 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 544 transitions. Word has length 31 [2022-11-18 20:15:55,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:15:55,765 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 544 transitions. [2022-11-18 20:15:55,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-11-18 20:15:55,765 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 544 transitions. [2022-11-18 20:15:55,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:15:55,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:15:55,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:55,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:15:55,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:15:55,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:55,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1225274542, now seen corresponding path program 1 times [2022-11-18 20:15:55,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:55,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104078890] [2022-11-18 20:15:55,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:55,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:55,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:55,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:55,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104078890] [2022-11-18 20:15:55,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104078890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:55,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:55,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:15:55,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851268509] [2022-11-18 20:15:55,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:55,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:15:55,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:55,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:15:55,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:15:55,937 INFO L87 Difference]: Start difference. First operand 330 states and 544 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2022-11-18 20:15:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:15:56,015 INFO L93 Difference]: Finished difference Result 1300 states and 2151 transitions. [2022-11-18 20:15:56,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:15:56,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2022-11-18 20:15:56,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:15:56,019 INFO L225 Difference]: With dead ends: 1300 [2022-11-18 20:15:56,020 INFO L226 Difference]: Without dead ends: 972 [2022-11-18 20:15:56,021 INFO L412 NwaCegarLoop]: 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 [2022-11-18 20:15:56,023 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1592 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:15:56,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 1723 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:15:56,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-11-18 20:15:56,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 332. [2022-11-18 20:15:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.649546827794562) internal successors, (546), 331 states have internal predecessors, (546), 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) [2022-11-18 20:15:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 546 transitions. [2022-11-18 20:15:56,038 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 546 transitions. Word has length 32 [2022-11-18 20:15:56,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:15:56,038 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 546 transitions. [2022-11-18 20:15:56,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2022-11-18 20:15:56,039 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 546 transitions. [2022-11-18 20:15:56,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-18 20:15:56,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:15:56,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:56,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:15:56,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:15:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:56,041 INFO L85 PathProgramCache]: Analyzing trace with hash 460762552, now seen corresponding path program 1 times [2022-11-18 20:15:56,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:56,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233658672] [2022-11-18 20:15:56,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:56,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:56,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:56,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233658672] [2022-11-18 20:15:56,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233658672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:56,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:56,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:15:56,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646990249] [2022-11-18 20:15:56,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:56,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:15:56,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:56,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:15:56,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:15:56,185 INFO L87 Difference]: Start difference. First operand 332 states and 546 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-11-18 20:15:56,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:15:56,266 INFO L93 Difference]: Finished difference Result 1311 states and 2164 transitions. [2022-11-18 20:15:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:15:56,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2022-11-18 20:15:56,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:15:56,274 INFO L225 Difference]: With dead ends: 1311 [2022-11-18 20:15:56,274 INFO L226 Difference]: Without dead ends: 981 [2022-11-18 20:15:56,276 INFO L412 NwaCegarLoop]: 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 [2022-11-18 20:15:56,283 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1589 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:15:56,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 1723 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:15:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-11-18 20:15:56,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 335. [2022-11-18 20:15:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.6497005988023952) internal successors, (551), 334 states have internal predecessors, (551), 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) [2022-11-18 20:15:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 551 transitions. [2022-11-18 20:15:56,311 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 551 transitions. Word has length 33 [2022-11-18 20:15:56,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:15:56,311 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 551 transitions. [2022-11-18 20:15:56,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-11-18 20:15:56,313 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 551 transitions. [2022-11-18 20:15:56,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-18 20:15:56,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:15:56,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:56,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:15:56,317 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:15:56,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:56,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1296323144, now seen corresponding path program 1 times [2022-11-18 20:15:56,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:56,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157156537] [2022-11-18 20:15:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:56,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:15:56,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:15:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:15:56,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:15:56,478 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:15:56,479 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:15:56,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:15:56,485 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 20:15:56,490 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:15:56,609 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:15:56,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:15:56 BoogieIcfgContainer [2022-11-18 20:15:56,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:15:56,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:15:56,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:15:56,653 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:15:56,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:15:54" (3/4) ... [2022-11-18 20:15:56,657 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:15:56,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:15:56,659 INFO L158 Benchmark]: Toolchain (without parser) took 6653.77ms. Allocated memory was 142.6MB in the beginning and 375.4MB in the end (delta: 232.8MB). Free memory was 105.4MB in the beginning and 323.2MB in the end (delta: -217.8MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-11-18 20:15:56,660 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 116.5MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:15:56,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 892.21ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 78.2MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 20:15:56,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 198.28ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 58.2MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-18 20:15:56,663 INFO L158 Benchmark]: Boogie Preprocessor took 107.83ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 48.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:15:56,663 INFO L158 Benchmark]: RCFGBuilder took 3416.61ms. Allocated memory was 142.6MB in the beginning and 264.2MB in the end (delta: 121.6MB). Free memory was 47.7MB in the beginning and 155.8MB in the end (delta: -108.2MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2022-11-18 20:15:56,663 INFO L158 Benchmark]: TraceAbstraction took 2024.50ms. Allocated memory was 264.2MB in the beginning and 375.4MB in the end (delta: 111.1MB). Free memory was 154.8MB in the beginning and 323.2MB in the end (delta: -168.4MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2022-11-18 20:15:56,664 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 375.4MB. Free memory is still 323.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:15:56,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 116.5MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 892.21ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 78.2MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 198.28ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 58.2MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.83ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 48.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3416.61ms. Allocated memory was 142.6MB in the beginning and 264.2MB in the end (delta: 121.6MB). Free memory was 47.7MB in the beginning and 155.8MB in the end (delta: -108.2MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2024.50ms. Allocated memory was 264.2MB in the beginning and 375.4MB in the end (delta: 111.1MB). Free memory was 154.8MB in the beginning and 323.2MB in the end (delta: -168.4MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 375.4MB. Free memory is still 323.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 192, overapproximation of bitwiseAnd at line 194. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_20 = 0; [L39] const SORT_4 var_53 = 1; [L40] const SORT_4 var_54 = 0; [L41] const SORT_2 var_63 = 1; [L42] const SORT_3 var_65 = 0; [L43] const SORT_4 var_68 = 3; [L44] const SORT_2 var_72 = 0; [L45] const SORT_4 var_122 = 2; [L46] const SORT_2 var_125 = 2; [L48] SORT_1 input_64; [L49] SORT_1 input_74; [L50] SORT_1 input_76; [L51] SORT_1 input_83; [L52] SORT_1 input_85; [L53] SORT_1 input_92; [L54] SORT_1 input_143; [L55] SORT_1 input_147; [L56] SORT_1 input_150; [L57] SORT_1 input_151; [L58] SORT_1 input_152; [L59] SORT_1 input_153; [L60] SORT_1 input_161; [L61] SORT_1 input_167; [L62] SORT_1 input_173; [L63] SORT_1 input_188; [L64] SORT_1 input_206; [L65] SORT_1 input_224; [L67] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L68] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] SORT_2 init_7_arg_1 = var_5; [L92] state_6 = init_7_arg_1 [L93] SORT_2 init_9_arg_1 = var_5; [L94] state_8 = init_9_arg_1 [L95] SORT_2 init_11_arg_1 = var_5; [L96] state_10 = init_11_arg_1 [L97] SORT_2 init_13_arg_1 = var_5; [L98] state_12 = init_13_arg_1 [L99] SORT_2 init_15_arg_1 = var_5; [L100] state_14 = init_15_arg_1 [L101] SORT_2 init_17_arg_1 = var_5; [L102] state_16 = init_17_arg_1 [L103] SORT_2 init_19_arg_1 = var_5; [L104] state_18 = init_19_arg_1 [L105] SORT_1 init_22_arg_1 = var_20; [L106] state_21 = init_22_arg_1 [L107] SORT_1 init_24_arg_1 = var_20; [L108] state_23 = init_24_arg_1 [L109] SORT_1 init_26_arg_1 = var_20; [L110] state_25 = init_26_arg_1 [L111] SORT_1 init_28_arg_1 = var_20; [L112] state_27 = init_28_arg_1 [L113] SORT_1 init_30_arg_1 = var_20; [L114] state_29 = init_30_arg_1 [L115] SORT_1 init_32_arg_1 = var_20; [L116] state_31 = init_32_arg_1 [L117] SORT_1 init_34_arg_1 = var_20; [L118] state_33 = init_34_arg_1 [L119] SORT_1 init_36_arg_1 = var_20; [L120] state_35 = init_36_arg_1 [L121] SORT_1 init_38_arg_1 = var_20; [L122] state_37 = init_38_arg_1 [L123] SORT_1 init_40_arg_1 = var_20; [L124] state_39 = init_40_arg_1 [L125] SORT_1 init_42_arg_1 = var_20; [L126] state_41 = init_42_arg_1 [L127] SORT_1 init_44_arg_1 = var_20; [L128] state_43 = init_44_arg_1 [L129] SORT_1 init_46_arg_1 = var_20; [L130] state_45 = init_46_arg_1 [L131] SORT_1 init_48_arg_1 = var_20; [L132] state_47 = init_48_arg_1 [L133] SORT_1 init_50_arg_1 = var_20; [L134] state_49 = init_50_arg_1 [L135] SORT_1 init_52_arg_1 = var_20; [L136] state_51 = init_52_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L139] input_64 = __VERIFIER_nondet_uchar() [L140] input_74 = __VERIFIER_nondet_uchar() [L141] input_76 = __VERIFIER_nondet_uchar() [L142] input_83 = __VERIFIER_nondet_uchar() [L143] input_85 = __VERIFIER_nondet_uchar() [L144] input_92 = __VERIFIER_nondet_uchar() [L145] input_143 = __VERIFIER_nondet_uchar() [L146] input_143 = input_143 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L147] input_147 = __VERIFIER_nondet_uchar() [L148] input_147 = input_147 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L149] input_150 = __VERIFIER_nondet_uchar() [L150] input_150 = input_150 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L151] input_151 = __VERIFIER_nondet_uchar() [L152] input_151 = input_151 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L153] input_152 = __VERIFIER_nondet_uchar() [L154] input_152 = input_152 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L155] input_153 = __VERIFIER_nondet_uchar() [L156] input_153 = input_153 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L157] input_161 = __VERIFIER_nondet_uchar() [L158] input_161 = input_161 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L159] input_167 = __VERIFIER_nondet_uchar() [L160] input_167 = input_167 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L161] input_173 = __VERIFIER_nondet_uchar() [L162] input_173 = input_173 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_63=1, var_65=0, var_68=3, var_72=0] [L163] input_188 = __VERIFIER_nondet_uchar() [L164] input_206 = __VERIFIER_nondet_uchar() [L165] input_224 = __VERIFIER_nondet_uchar() [L168] SORT_1 var_55_arg_0 = state_29; [L169] SORT_4 var_55_arg_1 = var_53; [L170] SORT_4 var_55_arg_2 = var_54; [L171] SORT_4 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L172] SORT_1 var_56_arg_0 = state_39; [L173] SORT_4 var_56_arg_1 = var_53; [L174] SORT_4 var_56_arg_2 = var_54; [L175] SORT_4 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L176] SORT_4 var_57_arg_0 = var_55; [L177] SORT_4 var_57_arg_1 = var_56; [L178] SORT_4 var_57 = var_57_arg_0 + var_57_arg_1; [L179] SORT_1 var_58_arg_0 = state_49; [L180] SORT_4 var_58_arg_1 = var_53; [L181] SORT_4 var_58_arg_2 = var_54; [L182] SORT_4 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L183] SORT_4 var_59_arg_0 = var_57; [L184] SORT_4 var_59_arg_1 = var_58; [L185] SORT_4 var_59 = var_59_arg_0 + var_59_arg_1; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, input_188=7, input_206=9, input_224=4, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=1, var_56_arg_2=0, var_57=0, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=0, var_58_arg_1=1, var_58_arg_2=0, var_59=0, var_59_arg_0=0, var_59_arg_1=0, var_63=1, var_65=0, var_68=3, var_72=0] [L186] var_59 = var_59 & mask_SORT_4 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, input_188=7, input_206=9, input_224=4, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=1, var_56_arg_2=0, var_57=0, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=0, var_58_arg_1=1, var_58_arg_2=0, var_59=0, var_59_arg_0=0, var_59_arg_1=0, var_63=1, var_65=0, var_68=3, var_72=0] [L187] SORT_4 var_60_arg_0 = var_59; [L188] SORT_4 var_60_arg_1 = var_53; [L189] SORT_1 var_60 = var_60_arg_0 <= var_60_arg_1; [L190] SORT_1 var_61_arg_0 = ~state_51; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, input_188=7, input_206=9, input_224=4, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=1, var_56_arg_2=0, var_57=0, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=0, var_58_arg_1=1, var_58_arg_2=0, var_59=0, var_59_arg_0=0, var_59_arg_1=0, var_60=1, var_60_arg_0=0, var_60_arg_1=1, var_63=1, var_65=0, var_68=3, var_72=0] [L191] var_61_arg_0 = var_61_arg_0 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, input_188=7, input_206=9, input_224=4, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=1, var_56_arg_2=0, var_57=0, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=0, var_58_arg_1=1, var_58_arg_2=0, var_59=0, var_59_arg_0=0, var_59_arg_1=0, var_60=1, var_60_arg_0=0, var_60_arg_1=1, var_61_arg_0=1, var_63=1, var_65=0, var_68=3, var_72=0] [L192] SORT_1 var_61_arg_1 = ~var_60; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, input_188=7, input_206=9, input_224=4, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=1, var_56_arg_2=0, var_57=0, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=0, var_58_arg_1=1, var_58_arg_2=0, var_59=0, var_59_arg_0=0, var_59_arg_1=0, var_60=1, var_60_arg_0=0, var_60_arg_1=1, var_61_arg_0=1, var_63=1, var_65=0, var_68=3, var_72=0] [L193] var_61_arg_1 = var_61_arg_1 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, input_188=7, input_206=9, input_224=4, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=1, var_56_arg_2=0, var_57=0, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=0, var_58_arg_1=1, var_58_arg_2=0, var_59=0, var_59_arg_0=0, var_59_arg_1=0, var_60=1, var_60_arg_0=0, var_60_arg_1=1, var_61_arg_0=1, var_61_arg_1=1, var_63=1, var_65=0, var_68=3, var_72=0] [L194] SORT_1 var_61 = var_61_arg_0 & var_61_arg_1; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, input_188=7, input_206=9, input_224=4, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=1, var_56_arg_2=0, var_57=0, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=0, var_58_arg_1=1, var_58_arg_2=0, var_59=0, var_59_arg_0=0, var_59_arg_1=0, var_60=1, var_60_arg_0=0, var_60_arg_1=1, var_61=1, var_61_arg_0=1, var_61_arg_1=1, var_63=1, var_65=0, var_68=3, var_72=0] [L195] var_61 = var_61 & mask_SORT_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_143=0, input_147=0, input_150=0, input_151=0, input_152=0, input_153=0, input_161=0, input_167=0, input_173=0, input_188=7, input_206=9, input_224=4, input_64=2, input_74=5, input_76=1, input_83=6, input_85=8, input_92=3, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_122=2, var_125=2, var_20=0, var_5=0, var_53=1, var_54=0, var_55=0, var_55_arg_0=0, var_55_arg_1=1, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=1, var_56_arg_2=0, var_57=0, var_57_arg_0=0, var_57_arg_1=0, var_58=0, var_58_arg_0=0, var_58_arg_1=1, var_58_arg_2=0, var_59=0, var_59_arg_0=0, var_59_arg_1=0, var_60=1, var_60_arg_0=0, var_60_arg_1=1, var_61=1, var_61_arg_0=1, var_61_arg_1=1, var_63=1, var_65=0, var_68=3, var_72=0] [L196] SORT_1 bad_62_arg_0 = var_61; [L197] CALL __VERIFIER_assert(!(bad_62_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 332 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4783 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4783 mSDsluCounter, 4714 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2911 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1803 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1647 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 20:15:56,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro --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 14f81a0d6a388b613f6256ef89322a578d67b2b4527606e37681918ec5903dd9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:15:59,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:15:59,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:15:59,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:15:59,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:15:59,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:15:59,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:15:59,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:15:59,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:15:59,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:15:59,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:15:59,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:15:59,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:15:59,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:15:59,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:15:59,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:15:59,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:15:59,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:15:59,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:15:59,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:15:59,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:15:59,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:15:59,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:15:59,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:15:59,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:15:59,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:15:59,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:15:59,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:15:59,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:15:59,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:15:59,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:15:59,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:15:59,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:15:59,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:15:59,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:15:59,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:15:59,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:15:59,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:15:59,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:15:59,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:15:59,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:15:59,217 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 20:15:59,243 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:15:59,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:15:59,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:15:59,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:15:59,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:15:59,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:15:59,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:15:59,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:15:59,248 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:15:59,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:15:59,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:15:59,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:15:59,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:15:59,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:15:59,251 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:15:59,251 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:15:59,252 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:15:59,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:15:59,252 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:15:59,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:15:59,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:15:59,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:15:59,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:15:59,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:15:59,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:15:59,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:15:59,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:15:59,256 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:15:59,256 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:15:59,256 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:15:59,257 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:15:59,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:15:59,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:15:59,258 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14f81a0d6a388b613f6256ef89322a578d67b2b4527606e37681918ec5903dd9 [2022-11-18 20:15:59,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:15:59,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:15:59,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:15:59,730 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:15:59,733 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:15:59,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c [2022-11-18 20:15:59,835 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data/c7b61cccb/672532a93d15409291dcfe081126c412/FLAGacfc0ff6b [2022-11-18 20:16:00,546 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:16:00,547 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c [2022-11-18 20:16:00,575 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data/c7b61cccb/672532a93d15409291dcfe081126c412/FLAGacfc0ff6b [2022-11-18 20:16:00,783 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/data/c7b61cccb/672532a93d15409291dcfe081126c412 [2022-11-18 20:16:00,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:16:00,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:16:00,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:16:00,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:16:00,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:16:00,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:16:00" (1/1) ... [2022-11-18 20:16:00,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7624d36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:00, skipping insertion in model container [2022-11-18 20:16:00,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:16:00" (1/1) ... [2022-11-18 20:16:00,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:16:00,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:16:01,108 WARN L234 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_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c[1014,1027] [2022-11-18 20:16:01,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:16:01,501 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:16:01,512 WARN L234 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_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.2.prop1-func-interl.c[1014,1027] [2022-11-18 20:16:01,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:16:01,713 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:16:01,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01 WrapperNode [2022-11-18 20:16:01,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:16:01,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:16:01,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:16:01,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:16:01,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,831 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1323 [2022-11-18 20:16:01,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:16:01,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:16:01,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:16:01,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:16:01,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,893 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:16:01,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:16:01,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:16:01,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:16:01,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (1/1) ... [2022-11-18 20:16:01,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:16:01,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:16:01,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:16:02,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:16:02,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:16:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:16:02,366 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:16:02,368 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:16:05,353 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:16:05,361 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:16:05,361 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:16:05,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:16:05 BoogieIcfgContainer [2022-11-18 20:16:05,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:16:05,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:16:05,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:16:05,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:16:05,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:16:00" (1/3) ... [2022-11-18 20:16:05,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bae43e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:16:05, skipping insertion in model container [2022-11-18 20:16:05,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:16:01" (2/3) ... [2022-11-18 20:16:05,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bae43e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:16:05, skipping insertion in model container [2022-11-18 20:16:05,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:16:05" (3/3) ... [2022-11-18 20:16:05,374 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.2.prop1-func-interl.c [2022-11-18 20:16:05,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:16:05,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:16:05,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:16:05,456 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3754a75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:16:05,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:16:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-11-18 20:16:05,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:16:05,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:05,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:16:05,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:16:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:05,475 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 20:16:05,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:16:05,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821955603] [2022-11-18 20:16:05,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:05,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:16:05,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:16:05,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:16:05,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 20:16:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:05,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 20:16:05,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:06,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:06,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:16:06,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:16:06,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821955603] [2022-11-18 20:16:06,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821955603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:06,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:16:06,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:16:06,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617231511] [2022-11-18 20:16:06,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:06,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:16:06,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:16:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:16:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:16:06,274 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-18 20:16:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:06,825 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-18 20:16:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:16:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-18 20:16:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:06,841 INFO L225 Difference]: With dead ends: 20 [2022-11-18 20:16:06,841 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 20:16:06,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:16:06,846 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:06,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:16:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 20:16:06,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-18 20:16:06,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-18 20:16:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-18 20:16:06,910 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-18 20:16:06,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:06,911 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-18 20:16:06,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-18 20:16:06,912 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-18 20:16:06,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:16:06,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:06,912 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:06,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:16:07,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:16:07,124 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:16:07,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:07,125 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-18 20:16:07,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:16:07,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696986794] [2022-11-18 20:16:07,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:07,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:16:07,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:16:07,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:16:07,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 20:16:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:08,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 111 conjunts are in the unsatisfiable core [2022-11-18 20:16:08,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:10,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:10,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:16:27,619 WARN L233 SmtUtils]: Spent 13.78s on a formula simplification that was a NOOP. DAG size: 226 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:16:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:28,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:16:28,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696986794] [2022-11-18 20:16:28,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696986794] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:16:28,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:16:28,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 20:16:28,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576570879] [2022-11-18 20:16:28,305 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:16:28,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:16:28,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:16:28,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:16:28,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:16:28,311 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-18 20:16:29,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:29,595 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 20:16:29,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:16:29,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 [2022-11-18 20:16:29,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:29,598 INFO L225 Difference]: With dead ends: 16 [2022-11-18 20:16:29,598 INFO L226 Difference]: Without dead ends: 14 [2022-11-18 20:16:29,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:16:29,602 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:29,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 19 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 11 Unchecked, 0.9s Time] [2022-11-18 20:16:29,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-18 20:16:29,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-18 20:16:29,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-18 20:16:29,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 20:16:29,615 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-18 20:16:29,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:29,615 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 20:16:29,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-18 20:16:29,616 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-18 20:16:29,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:16:29,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:29,618 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-18 20:16:29,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:16:29,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:16:29,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:16:29,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:29,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-18 20:16:29,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:16:29,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142120742] [2022-11-18 20:16:29,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:16:29,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:16:29,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:16:29,851 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:16:29,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 20:16:32,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:16:32,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:16:32,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 236 conjunts are in the unsatisfiable core [2022-11-18 20:16:32,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:16:38,137 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:16:38,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:18:10,423 WARN L233 SmtUtils]: Spent 1.42m on a formula simplification that was a NOOP. DAG size: 287 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:20:37,222 WARN L233 SmtUtils]: Spent 2.15m on a formula simplification that was a NOOP. DAG size: 2592 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:20:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:20:42,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:20:42,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142120742] [2022-11-18 20:20:42,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142120742] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:20:42,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:20:42,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 20:20:42,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686861636] [2022-11-18 20:20:42,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:20:42,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:20:42,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:20:42,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:20:42,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2022-11-18 20:20:42,850 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-18 20:20:45,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:45,077 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-18 20:20:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:20:45,078 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2022-11-18 20:20:45,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:45,078 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:20:45,079 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 20:20:45,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 232.1s TimeCoverageRelationStatistics Valid=41, Invalid=90, Unknown=1, NotChecked=0, Total=132 [2022-11-18 20:20:45,080 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:45,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 28 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 15 Unchecked, 1.2s Time] [2022-11-18 20:20:45,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 20:20:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-18 20:20:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-11-18 20:20:45,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 20:20:45,089 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-18 20:20:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:45,089 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 20:20:45,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-18 20:20:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 20:20:45,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:20:45,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:45,091 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-18 20:20:45,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:45,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:45,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:45,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:45,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-18 20:20:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:20:45,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096585611] [2022-11-18 20:20:45,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:20:45,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:45,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:20:45,313 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:20:45,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 20:20:52,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 20:20:52,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:20:52,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 3255 conjuncts, 426 conjunts are in the unsatisfiable core [2022-11-18 20:20:52,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 5 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:12,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:35,849 WARN L233 SmtUtils]: Spent 1.24m on a formula simplification that was a NOOP. DAG size: 287 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:24:46,983 WARN L233 SmtUtils]: Spent 1.88m on a formula simplification that was a NOOP. DAG size: 2598 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:28:16,839 WARN L233 SmtUtils]: Spent 2.33m on a formula simplification that was a NOOP. DAG size: 5708 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:28:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:26,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:28:26,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096585611] [2022-11-18 20:28:26,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096585611] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:26,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:28:26,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 20:28:26,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956493807] [2022-11-18 20:28:26,885 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:26,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:28:26,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:28:26,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:28:26,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=90, Unknown=10, NotChecked=0, Total=132 [2022-11-18 20:28:26,887 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2022-11-18 20:28:29,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:28:45,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:45,781 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2022-11-18 20:28:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:28:45,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 14 [2022-11-18 20:28:45,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:45,782 INFO L225 Difference]: With dead ends: 21 [2022-11-18 20:28:45,782 INFO L226 Difference]: Without dead ends: 19 [2022-11-18 20:28:45,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 434.3s TimeCoverageRelationStatistics Valid=54, Invalid=142, Unknown=14, NotChecked=0, Total=210 [2022-11-18 20:28:45,783 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:45,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 38 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 1 Unknown, 20 Unchecked, 2.2s Time] [2022-11-18 20:28:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-18 20:28:45,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-18 20:28:45,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-18 20:28:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-18 20:28:45,799 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-18 20:28:45,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:45,799 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-18 20:28:45,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2022-11-18 20:28:45,800 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-18 20:28:45,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:28:45,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:45,800 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-18 20:28:45,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-18 20:28:46,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:28:46,020 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:28:46,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:46,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-18 20:28:46,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:28:46,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284722148] [2022-11-18 20:28:46,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:28:46,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:28:46,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:28:46,026 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:28:46,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d042750-ec23-4f6c-a3b3-b74c0e4e5c0b/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 20:28:52,736 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:28:52,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:28:52,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 4302 conjuncts, 507 conjunts are in the unsatisfiable core [2022-11-18 20:28:52,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:29:27,745 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 17 refuted. 9 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:27,745 INFO L328 TraceCheckSpWp]: Computing backward predicates...