./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN --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 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 --- 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-6b4ec56 [2022-11-20 11:31:19,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:31:19,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:31:19,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:31:19,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:31:19,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:31:19,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:31:19,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:31:19,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:31:19,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:31:19,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:31:19,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:31:19,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:31:19,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:31:19,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:31:19,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:31:19,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:31:19,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:31:19,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:31:19,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:31:19,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:31:19,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:31:19,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:31:19,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:31:19,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:31:19,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:31:19,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:31:19,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:31:19,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:31:19,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:31:19,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:31:19,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:31:19,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:31:19,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:31:19,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:31:19,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:31:19,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:31:19,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:31:19,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:31:19,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:31:19,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:31:19,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:31:19,798 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:31:19,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:31:19,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:31:19,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:31:19,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:31:19,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:31:19,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:31:19,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:31:19,801 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:31:19,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:31:19,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:31:19,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:31:19,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:31:19,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:31:19,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:31:19,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:31:19,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:31:19,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:31:19,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:31:19,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:31:19,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:31:19,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:19,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:31:19,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:31:19,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:31:19,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:31:19,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:31:19,804 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:31:19,804 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:31:19,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:31:19,805 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_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 [2022-11-20 11:31:20,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:31:20,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:31:20,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:31:20,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:31:20,206 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:31:20,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-20 11:31:23,248 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:31:23,456 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:31:23,456 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-20 11:31:23,464 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/data/8f0403708/26bb0a6859924284b005c71f12ae42db/FLAG226c69eb7 [2022-11-20 11:31:23,490 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/data/8f0403708/26bb0a6859924284b005c71f12ae42db [2022-11-20 11:31:23,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:31:23,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:31:23,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:23,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:31:23,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:31:23,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed3fe6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23, skipping insertion in model container [2022-11-20 11:31:23,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:31:23,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:31:23,735 WARN L237 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_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-20 11:31:23,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:23,775 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:31:23,787 WARN L237 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_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-20 11:31:23,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:23,819 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:31:23,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23 WrapperNode [2022-11-20 11:31:23,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:23,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:23,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:31:23,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:31:23,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,857 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-20 11:31:23,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:23,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:31:23,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:31:23,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:31:23,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,881 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:31:23,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:31:23,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:31:23,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:31:23,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (1/1) ... [2022-11-20 11:31:23,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:23,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:23,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:31:23,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:31:23,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:31:23,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:31:24,051 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:31:24,054 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:31:24,311 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:31:24,319 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:31:24,322 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:31:24,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:24 BoogieIcfgContainer [2022-11-20 11:31:24,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:31:24,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:31:24,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:31:24,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:31:24,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:31:23" (1/3) ... [2022-11-20 11:31:24,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1466a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:24, skipping insertion in model container [2022-11-20 11:31:24,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:23" (2/3) ... [2022-11-20 11:31:24,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1466a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:24, skipping insertion in model container [2022-11-20 11:31:24,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:24" (3/3) ... [2022-11-20 11:31:24,353 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2022-11-20 11:31:24,384 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:31:24,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:31:24,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:31:24,471 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;@6df2e6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:31:24,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:31:24,476 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) [2022-11-20 11:31:24,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:31:24,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:24,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:31:24,487 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:24,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:24,496 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 11:31:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:24,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826899151] [2022-11-20 11:31:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:24,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:31:24,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:31:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:31:24,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:31:24,807 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:31:24,809 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:31:24,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:31:24,815 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 11:31:24,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:31:24,836 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:24,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:31:24 BoogieIcfgContainer [2022-11-20 11:31:24,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:31:24,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:31:24,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:31:24,844 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:31:24,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:24" (3/4) ... [2022-11-20 11:31:24,849 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:31:24,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:31:24,850 INFO L158 Benchmark]: Toolchain (without parser) took 1356.23ms. Allocated memory is still 155.2MB. Free memory was 119.1MB in the beginning and 88.9MB in the end (delta: 30.1MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2022-11-20 11:31:24,851 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:31:24,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.74ms. Allocated memory is still 155.2MB. Free memory was 119.1MB in the beginning and 122.0MB in the end (delta: -2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:31:24,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.19ms. Allocated memory is still 155.2MB. Free memory was 122.0MB in the beginning and 120.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:31:24,853 INFO L158 Benchmark]: Boogie Preprocessor took 25.88ms. Allocated memory is still 155.2MB. Free memory was 120.3MB in the beginning and 119.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:31:24,854 INFO L158 Benchmark]: RCFGBuilder took 440.77ms. Allocated memory is still 155.2MB. Free memory was 119.1MB in the beginning and 106.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:31:24,854 INFO L158 Benchmark]: TraceAbstraction took 513.79ms. Allocated memory is still 155.2MB. Free memory was 105.7MB in the beginning and 89.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 11:31:24,855 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 155.2MB. Free memory was 89.3MB in the beginning and 88.9MB in the end (delta: 384.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:31:24,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.74ms. Allocated memory is still 155.2MB. Free memory was 119.1MB in the beginning and 122.0MB in the end (delta: -2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.19ms. Allocated memory is still 155.2MB. Free memory was 122.0MB in the beginning and 120.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.88ms. Allocated memory is still 155.2MB. Free memory was 120.3MB in the beginning and 119.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.77ms. Allocated memory is still 155.2MB. Free memory was 119.1MB in the beginning and 106.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 513.79ms. Allocated memory is still 155.2MB. Free memory was 105.7MB in the beginning and 89.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 155.2MB. Free memory was 89.3MB in the beginning and 88.9MB in the end (delta: 384.1kB). 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 59, overapproximation of bitwiseAnd at line 62. 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 5); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (5 - 1); [L31] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 32); [L32] const SORT_19 msb_SORT_19 = (SORT_19)1 << (32 - 1); [L34] const SORT_4 var_5 = 0; [L35] const SORT_4 var_8 = 6; [L36] const SORT_1 var_14 = 1; [L37] const SORT_19 var_21 = 2; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L42] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] SORT_4 init_7_arg_1 = var_5; [L46] state_6 = init_7_arg_1 [L47] SORT_4 init_10_arg_1 = var_8; [L48] state_9 = init_10_arg_1 VAL [init_10_arg_1=6, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, state_6=0, state_9=6, var_14=1, var_21=2, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-11-20 11:31:24,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN --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 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 --- 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-6b4ec56 [2022-11-20 11:31:27,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:31:27,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:31:27,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:31:27,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:31:27,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:31:27,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:31:27,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:31:27,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:31:27,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:31:27,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:31:27,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:31:27,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:31:27,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:31:27,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:31:27,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:31:27,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:31:27,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:31:27,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:31:27,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:31:27,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:31:27,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:31:27,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:31:27,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:31:27,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:31:27,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:31:27,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:31:27,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:31:27,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:31:27,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:31:27,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:31:27,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:31:27,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:31:27,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:31:27,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:31:27,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:31:27,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:31:27,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:31:27,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:31:27,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:31:27,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:31:27,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:31:27,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:31:27,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:31:27,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:31:27,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:31:27,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:31:27,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:31:27,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:31:27,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:31:27,619 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:31:27,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:31:27,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:31:27,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:31:27,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:31:27,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:31:27,621 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:31:27,621 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:31:27,621 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:31:27,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:31:27,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:31:27,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:31:27,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:31:27,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:31:27,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:31:27,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:27,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:31:27,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:31:27,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:31:27,625 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:31:27,625 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:31:27,626 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:31:27,626 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:31:27,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:31:27,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:31:27,627 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_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 [2022-11-20 11:31:27,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:31:27,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:31:27,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:31:27,990 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:31:27,991 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:31:27,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-20 11:31:31,287 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:31:31,482 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:31:31,482 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-20 11:31:31,489 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/data/6e994b42f/8da5c54cbc3947d695d7c71a3c1ac492/FLAG53ad9389b [2022-11-20 11:31:31,508 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/data/6e994b42f/8da5c54cbc3947d695d7c71a3c1ac492 [2022-11-20 11:31:31,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:31:31,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:31:31,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:31,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:31:31,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:31:31,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e123c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31, skipping insertion in model container [2022-11-20 11:31:31,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:31:31,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:31:31,693 WARN L237 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_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-20 11:31:31,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:31,747 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:31:31,757 WARN L237 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_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-20 11:31:31,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:31,787 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:31:31,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31 WrapperNode [2022-11-20 11:31:31,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:31,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:31,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:31:31,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:31:31,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,826 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-20 11:31:31,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:31,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:31:31,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:31:31,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:31:31,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,850 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:31:31,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:31:31,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:31:31,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:31:31,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (1/1) ... [2022-11-20 11:31:31,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:31,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:31,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:31:31,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:31:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:31:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:31:32,006 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:31:32,008 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:31:32,254 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:31:32,262 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:31:32,262 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:31:32,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:32 BoogieIcfgContainer [2022-11-20 11:31:32,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:31:32,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:31:32,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:31:32,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:31:32,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:31:31" (1/3) ... [2022-11-20 11:31:32,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0131b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:32, skipping insertion in model container [2022-11-20 11:31:32,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:31" (2/3) ... [2022-11-20 11:31:32,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0131b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:32, skipping insertion in model container [2022-11-20 11:31:32,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:32" (3/3) ... [2022-11-20 11:31:32,306 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2022-11-20 11:31:32,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:31:32,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:31:32,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:31:32,487 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;@6240d640, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:31:32,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:31:32,492 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) [2022-11-20 11:31:32,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:31:32,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:32,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:31:32,509 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:32,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:32,515 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 11:31:32,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:32,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314731939] [2022-11-20 11:31:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:32,531 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 [2022-11-20 11:31:32,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:32,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:31:32,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:32,675 WARN L261 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:31:32,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:32,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:32,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:32,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314731939] [2022-11-20 11:31:32,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314731939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:32,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:32,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:31:32,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394780910] [2022-11-20 11:31:32,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:32,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:31:32,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:32,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:31:32,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:31:32,979 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) [2022-11-20 11:31:33,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:33,059 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 11:31:33,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:31:33,063 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 [2022-11-20 11:31:33,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:33,078 INFO L225 Difference]: With dead ends: 20 [2022-11-20 11:31:33,078 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 11:31:33,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:31:33,090 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:33,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:31:33,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 11:31:33,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 11:31:33,124 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) [2022-11-20 11:31:33,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 11:31:33,126 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 11:31:33,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:33,126 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 11:31:33,127 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) [2022-11-20 11:31:33,127 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 11:31:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:31:33,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:33,128 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:33,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:33,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:33,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:33,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:33,340 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 11:31:33,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:33,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418507620] [2022-11-20 11:31:33,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:33,342 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 [2022-11-20 11:31:33,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:33,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:31:33,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:33,438 WARN L261 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-20 11:31:33,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:33,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:34,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:34,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418507620] [2022-11-20 11:31:34,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418507620] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:34,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:31:34,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 11:31:34,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073245909] [2022-11-20 11:31:34,017 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:34,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:31:34,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:34,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:31:34,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:31:34,023 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) [2022-11-20 11:31:34,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:34,100 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 11:31:34,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:34,101 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 [2022-11-20 11:31:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:34,102 INFO L225 Difference]: With dead ends: 16 [2022-11-20 11:31:34,102 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 11:31:34,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:34,104 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:34,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 19 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-11-20 11:31:34,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 11:31:34,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 11:31:34,118 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) [2022-11-20 11:31:34,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 11:31:34,119 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 11:31:34,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:34,120 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 11:31:34,121 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) [2022-11-20 11:31:34,121 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 11:31:34,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 11:31:34,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:34,127 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 11:31:34,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:34,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:34,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:34,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:34,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 11:31:34,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:34,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728649153] [2022-11-20 11:31:34,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:31:34,341 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 [2022-11-20 11:31:34,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:34,349 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:31:34,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:34,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:31:34,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:34,437 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-20 11:31:34,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:34,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:35,182 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:35,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:35,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728649153] [2022-11-20 11:31:35,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728649153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:35,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:31:35,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 11:31:35,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681781904] [2022-11-20 11:31:35,183 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:35,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:31:35,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:35,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:31:35,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:35,185 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) [2022-11-20 11:31:35,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:35,493 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-20 11:31:35,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:31:35,494 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 [2022-11-20 11:31:35,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:35,495 INFO L225 Difference]: With dead ends: 21 [2022-11-20 11:31:35,495 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 11:31:35,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:31:35,496 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:35,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 32 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 20 Unchecked, 0.1s Time] [2022-11-20 11:31:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 11:31:35,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-20 11:31:35,504 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) [2022-11-20 11:31:35,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-20 11:31:35,505 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-20 11:31:35,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:35,505 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-20 11:31:35,505 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) [2022-11-20 11:31:35,505 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-20 11:31:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 11:31:35,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:35,506 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-20 11:31:35,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:35,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:35,707 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:35,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:35,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-20 11:31:35,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:35,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571749796] [2022-11-20 11:31:35,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:31:35,710 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 [2022-11-20 11:31:35,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:35,711 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:31:35,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:35,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-20 11:31:35,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:35,837 WARN L261 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 92 conjunts are in the unsatisfiable core [2022-11-20 11:31:35,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:36,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:37,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:37,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571749796] [2022-11-20 11:31:37,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571749796] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:37,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:31:37,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 11:31:37,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699413611] [2022-11-20 11:31:37,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:37,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:31:37,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:37,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:31:37,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:31:37,390 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-20 11:31:38,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:38,466 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-11-20 11:31:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:31:38,470 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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 17 [2022-11-20 11:31:38,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:38,470 INFO L225 Difference]: With dead ends: 33 [2022-11-20 11:31:38,470 INFO L226 Difference]: Without dead ends: 31 [2022-11-20 11:31:38,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:31:38,472 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 45 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:38,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 27 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 27 Unchecked, 0.1s Time] [2022-11-20 11:31:38,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-20 11:31:38,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-11-20 11:31:38,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 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) [2022-11-20 11:31:38,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2022-11-20 11:31:38,489 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 17 [2022-11-20 11:31:38,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:38,489 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2022-11-20 11:31:38,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2022-11-20 11:31:38,490 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2022-11-20 11:31:38,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 11:31:38,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:38,492 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1] [2022-11-20 11:31:38,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:38,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:38,705 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:38,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:38,706 INFO L85 PathProgramCache]: Analyzing trace with hash 637038473, now seen corresponding path program 4 times [2022-11-20 11:31:38,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:38,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317353022] [2022-11-20 11:31:38,707 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:31:38,707 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 [2022-11-20 11:31:38,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:38,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:31:38,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:38,865 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:31:38,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:38,874 WARN L261 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 164 conjunts are in the unsatisfiable core [2022-11-20 11:31:38,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:40,085 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:40,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:42,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:31:42,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317353022] [2022-11-20 11:31:42,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317353022] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:42,972 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:31:42,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2022-11-20 11:31:42,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626682120] [2022-11-20 11:31:42,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:42,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:31:42,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:31:42,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:31:42,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:31:42,974 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 states have internal predecessors, (56), 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) [2022-11-20 11:31:46,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:46,897 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2022-11-20 11:31:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 11:31:46,898 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 states have internal predecessors, (56), 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 29 [2022-11-20 11:31:46,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:46,899 INFO L225 Difference]: With dead ends: 66 [2022-11-20 11:31:46,899 INFO L226 Difference]: Without dead ends: 64 [2022-11-20 11:31:46,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=331, Invalid=1075, Unknown=0, NotChecked=0, Total=1406 [2022-11-20 11:31:46,900 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 60 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 168 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:46,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 98 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 181 Invalid, 0 Unknown, 168 Unchecked, 0.4s Time] [2022-11-20 11:31:46,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-20 11:31:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2022-11-20 11:31:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0714285714285714) internal successors, (60), 56 states have internal predecessors, (60), 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) [2022-11-20 11:31:46,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2022-11-20 11:31:46,935 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 29 [2022-11-20 11:31:46,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:46,936 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2022-11-20 11:31:46,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 states have internal predecessors, (56), 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) [2022-11-20 11:31:46,937 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2022-11-20 11:31:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-20 11:31:46,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:46,938 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1] [2022-11-20 11:31:46,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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)] Ended with exit code 0 [2022-11-20 11:31:47,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:47,153 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:47,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:47,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1244940003, now seen corresponding path program 5 times [2022-11-20 11:31:47,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:31:47,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960394195] [2022-11-20 11:31:47,154 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 11:31:47,155 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 [2022-11-20 11:31:47,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:31:47,156 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:31:47,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 (7)] Waiting until timeout for monitored process [2022-11-20 11:31:47,433 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2022-11-20 11:31:47,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-20 11:31:47,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:31:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:31:47,708 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-20 11:31:47,708 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:31:47,709 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:31:47,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:47,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:31:47,930 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1] [2022-11-20 11:31:47,934 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:31:48,003 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,004 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,004 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,004 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,004 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,004 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,005 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,005 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,005 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,005 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,005 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,005 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,006 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,006 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:31:48 BoogieIcfgContainer [2022-11-20 11:31:48,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:31:48,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:31:48,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:31:48,031 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:31:48,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:32" (3/4) ... [2022-11-20 11:31:48,034 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 11:31:48,058 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,058 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,058 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,058 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,058 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,059 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,059 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,059 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,059 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,059 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,059 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,059 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,060 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,060 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:31:48,219 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:31:48,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:31:48,220 INFO L158 Benchmark]: Toolchain (without parser) took 16707.27ms. Allocated memory was 65.0MB in the beginning and 201.3MB in the end (delta: 136.3MB). Free memory was 35.6MB in the beginning and 170.9MB in the end (delta: -135.3MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2022-11-20 11:31:48,220 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 65.0MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:31:48,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.69ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 35.2MB in the beginning and 71.2MB in the end (delta: -36.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-11-20 11:31:48,221 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.03ms. Allocated memory is still 94.4MB. Free memory was 71.2MB in the beginning and 69.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:31:48,221 INFO L158 Benchmark]: Boogie Preprocessor took 26.67ms. Allocated memory is still 94.4MB. Free memory was 69.4MB in the beginning and 68.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:31:48,222 INFO L158 Benchmark]: RCFGBuilder took 410.52ms. Allocated memory is still 94.4MB. Free memory was 68.4MB in the beginning and 56.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:31:48,222 INFO L158 Benchmark]: TraceAbstraction took 15762.77ms. Allocated memory was 94.4MB in the beginning and 201.3MB in the end (delta: 107.0MB). Free memory was 56.2MB in the beginning and 98.4MB in the end (delta: -42.2MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2022-11-20 11:31:48,222 INFO L158 Benchmark]: Witness Printer took 188.17ms. Allocated memory is still 201.3MB. Free memory was 98.4MB in the beginning and 170.9MB in the end (delta: -72.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:31:48,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 65.0MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.69ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 35.2MB in the beginning and 71.2MB in the end (delta: -36.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.03ms. Allocated memory is still 94.4MB. Free memory was 71.2MB in the beginning and 69.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.67ms. Allocated memory is still 94.4MB. Free memory was 69.4MB in the beginning and 68.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 410.52ms. Allocated memory is still 94.4MB. Free memory was 68.4MB in the beginning and 56.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15762.77ms. Allocated memory was 94.4MB in the beginning and 201.3MB in the end (delta: 107.0MB). Free memory was 56.2MB in the beginning and 98.4MB in the end (delta: -42.2MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. * Witness Printer took 188.17ms. Allocated memory is still 201.3MB. Free memory was 98.4MB in the beginning and 170.9MB in the end (delta: -72.5MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 20]: a call to reach_error is reachable a call to reach_error is reachable We found a 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 5); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (5 - 1); [L31] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 32); [L32] const SORT_19 msb_SORT_19 = (SORT_19)1 << (32 - 1); [L34] const SORT_4 var_5 = 0; [L35] const SORT_4 var_8 = 6; [L36] const SORT_1 var_14 = 1; [L37] const SORT_19 var_21 = 2; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L42] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] SORT_4 init_7_arg_1 = var_5; [L46] state_6 = init_7_arg_1 [L47] SORT_4 init_10_arg_1 = var_8; [L48] state_9 = init_10_arg_1 VAL [init_10_arg_1=6, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, state_6=0, state_9=6, var_14=1, var_21=2, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=3, input_3=5, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=2, next_28_arg_1=8, state_6=2, state_9=8, var_11=1, var_11_arg_0=0, var_11_arg_1=6, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=0, var_20_arg_0=0, var_21=2, var_22=2, var_22_arg_0=0, var_22_arg_1=2, var_23=2, var_23_arg_0=2, var_25=6, var_25_arg_0=6, var_26=8, var_26_arg_0=6, var_26_arg_1=2, var_27=8, var_27_arg_0=8, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=7, input_3=9, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=4, next_28_arg_1=10, state_6=4, state_9=10, var_11=1, var_11_arg_0=2, var_11_arg_1=8, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=2, var_20_arg_0=2, var_21=2, var_22=4, var_22_arg_0=2, var_22_arg_1=2, var_23=4, var_23_arg_0=4, var_25=8, var_25_arg_0=8, var_26=10, var_26_arg_0=8, var_26_arg_1=2, var_27=10, var_27_arg_0=10, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=11, input_3=13, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=6, next_28_arg_1=12, state_6=6, state_9=12, var_11=1, var_11_arg_0=4, var_11_arg_1=10, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=4, var_20_arg_0=4, var_21=2, var_22=6, var_22_arg_0=4, var_22_arg_1=2, var_23=6, var_23_arg_0=6, var_25=10, var_25_arg_0=10, var_26=12, var_26_arg_0=10, var_26_arg_1=2, var_27=12, var_27_arg_0=12, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=15, input_3=17, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=8, next_28_arg_1=14, state_6=8, state_9=14, var_11=1, var_11_arg_0=6, var_11_arg_1=12, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=6, var_20_arg_0=6, var_21=2, var_22=8, var_22_arg_0=6, var_22_arg_1=2, var_23=8, var_23_arg_0=8, var_25=12, var_25_arg_0=12, var_26=14, var_26_arg_0=12, var_26_arg_1=2, var_27=14, var_27_arg_0=14, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=19, input_3=21, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=10, next_28_arg_1=16, state_6=10, state_9=16, var_11=1, var_11_arg_0=8, var_11_arg_1=14, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=8, var_20_arg_0=8, var_21=2, var_22=10, var_22_arg_0=8, var_22_arg_1=2, var_23=10, var_23_arg_0=10, var_25=14, var_25_arg_0=14, var_26=16, var_26_arg_0=14, var_26_arg_1=2, var_27=16, var_27_arg_0=16, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=23, input_3=25, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=12, next_28_arg_1=18, state_6=12, state_9=18, var_11=1, var_11_arg_0=10, var_11_arg_1=16, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=10, var_20_arg_0=10, var_21=2, var_22=12, var_22_arg_0=10, var_22_arg_1=2, var_23=12, var_23_arg_0=12, var_25=16, var_25_arg_0=16, var_26=18, var_26_arg_0=16, var_26_arg_1=2, var_27=18, var_27_arg_0=18, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=27, input_3=29, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=14, next_28_arg_1=20, state_6=14, state_9=20, var_11=1, var_11_arg_0=12, var_11_arg_1=18, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=12, var_20_arg_0=12, var_21=2, var_22=14, var_22_arg_0=12, var_22_arg_1=2, var_23=14, var_23_arg_0=14, var_25=18, var_25_arg_0=18, var_26=20, var_26_arg_0=18, var_26_arg_1=2, var_27=20, var_27_arg_0=20, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=33, input_3=34, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=16, next_28_arg_1=22, state_6=16, state_9=22, var_11=1, var_11_arg_0=14, var_11_arg_1=20, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=14, var_20_arg_0=14, var_21=2, var_22=16, var_22_arg_0=14, var_22_arg_1=2, var_23=16, var_23_arg_0=16, var_25=20, var_25_arg_0=20, var_26=22, var_26_arg_0=20, var_26_arg_1=2, var_27=22, var_27_arg_0=22, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=35, input_3=36, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=18, next_28_arg_1=24, state_6=18, state_9=24, var_11=1, var_11_arg_0=16, var_11_arg_1=22, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=16, var_20_arg_0=16, var_21=2, var_22=18, var_22_arg_0=16, var_22_arg_1=2, var_23=18, var_23_arg_0=18, var_25=22, var_25_arg_0=22, var_26=24, var_26_arg_0=22, var_26_arg_1=2, var_27=24, var_27_arg_0=24, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=37, input_3=38, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=20, next_28_arg_1=26, state_6=20, state_9=26, var_11=1, var_11_arg_0=18, var_11_arg_1=24, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=18, var_20_arg_0=18, var_21=2, var_22=20, var_22_arg_0=18, var_22_arg_1=2, var_23=20, var_23_arg_0=20, var_25=24, var_25_arg_0=24, var_26=26, var_26_arg_0=24, var_26_arg_1=2, var_27=26, var_27_arg_0=26, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=39, input_3=40, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=22, next_28_arg_1=28, state_6=22, state_9=28, var_11=1, var_11_arg_0=20, var_11_arg_1=26, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=20, var_20_arg_0=20, var_21=2, var_22=22, var_22_arg_0=20, var_22_arg_1=2, var_23=22, var_23_arg_0=22, var_25=26, var_25_arg_0=26, var_26=28, var_26_arg_0=26, var_26_arg_1=2, var_27=28, var_27_arg_0=28, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=41, input_3=42, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=24, next_28_arg_1=30, state_6=24, state_9=30, var_11=1, var_11_arg_0=22, var_11_arg_1=28, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=22, var_20_arg_0=22, var_21=2, var_22=24, var_22_arg_0=22, var_22_arg_1=2, var_23=24, var_23_arg_0=24, var_25=28, var_25_arg_0=28, var_26=30, var_26_arg_0=28, var_26_arg_1=2, var_27=30, var_27_arg_0=30, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=43, input_3=44, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=26, next_28_arg_1=0, state_6=26, state_9=0, var_11=1, var_11_arg_0=24, var_11_arg_1=30, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=24, var_20_arg_0=24, var_21=2, var_22=26, var_22_arg_0=24, var_22_arg_1=2, var_23=26, var_23_arg_0=26, var_25=30, var_25_arg_0=30, var_26=32, var_26_arg_0=30, var_26_arg_1=2, var_27=0, var_27_arg_0=32, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.5s, OverallIterations: 6, TraceHistogramMax: 14, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 222 IncrementalHoareTripleChecker+Unchecked, 164 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 25 mSDtfsCounter, 300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=5, InterpolantAutomatonStates: 58, 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, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 126 ConstructedInterpolants, 49 QuantifiedInterpolants, 9279 SizeOfPredicates, 333 NumberOfNonLiveVariables, 640 ConjunctsInSsa, 368 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/270 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 proved your program to be incorrect! [2022-11-20 11:31:48,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e3f8cb7-e295-4b2c-b030-21a55bc348ec/bin/uautomizer-ug76WZFUDN/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE