./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 6b05f6b8a74845cd1807b48d64b2a001b228d836df38230df5acfa492c9d217b --- 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 09:28:18,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:18,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:18,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:18,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:18,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:18,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:18,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:18,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:18,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:18,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:18,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:18,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:18,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:18,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:18,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:18,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:18,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:18,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:18,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:18,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:18,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:18,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:18,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:18,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:18,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:18,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:18,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:18,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:18,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:18,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:18,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:18,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:18,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:18,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:18,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:18,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:18,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:18,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:18,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:18,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:18,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:28:18,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:18,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:18,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:18,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:18,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:18,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:18,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:18,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:18,933 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:18,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:18,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:18,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:18,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:18,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:18,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:18,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:18,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:18,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:18,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:18,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:18,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:18,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:18,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:18,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:18,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:18,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:18,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:28:18,936 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:18,937 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:18,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:18,937 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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b05f6b8a74845cd1807b48d64b2a001b228d836df38230df5acfa492c9d217b [2022-11-20 09:28:19,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:19,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:19,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:19,257 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:19,258 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:19,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c [2022-11-20 09:28:22,328 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:22,715 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:22,717 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c [2022-11-20 09:28:22,734 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/data/fc4d91d10/31cdaef717ec4c528bd053cf50e8a3e8/FLAGe5176739d [2022-11-20 09:28:22,754 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/data/fc4d91d10/31cdaef717ec4c528bd053cf50e8a3e8 [2022-11-20 09:28:22,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:22,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:22,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:22,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:22,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:22,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:22" (1/1) ... [2022-11-20 09:28:22,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a322152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:22, skipping insertion in model container [2022-11-20 09:28:22,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:22" (1/1) ... [2022-11-20 09:28:22,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:22,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:23,027 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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c[1107,1120] [2022-11-20 09:28:23,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:23,326 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:28:23,338 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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c[1107,1120] [2022-11-20 09:28:23,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:23,493 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:28:23,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23 WrapperNode [2022-11-20 09:28:23,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:23,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:23,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:28:23,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:28:23,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,627 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1234 [2022-11-20 09:28:23,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:23,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:28:23,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:28:23,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:28:23,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,737 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:28:23,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:28:23,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:28:23,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:28:23,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (1/1) ... [2022-11-20 09:28:23,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:23,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:23,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:23,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:28:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:28:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:28:24,239 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:28:24,241 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:36,214 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:36,221 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:36,221 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:28:36,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:36 BoogieIcfgContainer [2022-11-20 09:28:36,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:36,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:36,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:36,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:36,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:22" (1/3) ... [2022-11-20 09:28:36,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471de34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:36, skipping insertion in model container [2022-11-20 09:28:36,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:23" (2/3) ... [2022-11-20 09:28:36,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471de34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:36, skipping insertion in model container [2022-11-20 09:28:36,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:36" (3/3) ... [2022-11-20 09:28:36,238 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal2.c [2022-11-20 09:28:36,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:36,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:28:36,334 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:28:36,339 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;@6377ec1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:28:36,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:28:36,344 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 09:28:36,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 09:28:36,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:36,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 09:28:36,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:36,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 09:28:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:36,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664705656] [2022-11-20 09:28:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:36,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:36,660 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:36,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:36,834 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:28:36,835 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 09:28:36,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:28:36,842 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 09:28:36,847 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:28:36,894 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 09:28:36,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:28:36 BoogieIcfgContainer [2022-11-20 09:28:36,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:28:36,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:28:36,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:28:36,921 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:28:36,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:36" (3/4) ... [2022-11-20 09:28:36,929 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:28:36,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:28:36,933 INFO L158 Benchmark]: Toolchain (without parser) took 14167.89ms. Allocated memory was 167.8MB in the beginning and 549.5MB in the end (delta: 381.7MB). Free memory was 136.1MB in the beginning and 288.1MB in the end (delta: -152.0MB). Peak memory consumption was 233.3MB. Max. memory is 16.1GB. [2022-11-20 09:28:36,933 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:28:36,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 728.79ms. Allocated memory is still 167.8MB. Free memory was 136.1MB in the beginning and 99.1MB in the end (delta: 37.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 09:28:36,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.86ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 87.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:28:36,936 INFO L158 Benchmark]: Boogie Preprocessor took 134.36ms. Allocated memory is still 167.8MB. Free memory was 87.8MB in the beginning and 81.3MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 09:28:36,942 INFO L158 Benchmark]: RCFGBuilder took 12461.80ms. Allocated memory was 167.8MB in the beginning and 549.5MB in the end (delta: 381.7MB). Free memory was 81.3MB in the beginning and 322.7MB in the end (delta: -241.4MB). Peak memory consumption was 290.4MB. Max. memory is 16.1GB. [2022-11-20 09:28:36,944 INFO L158 Benchmark]: TraceAbstraction took 691.55ms. Allocated memory is still 549.5MB. Free memory was 322.7MB in the beginning and 288.1MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 09:28:36,944 INFO L158 Benchmark]: Witness Printer took 10.58ms. Allocated memory is still 549.5MB. Free memory was 288.1MB in the beginning and 288.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:36,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 728.79ms. Allocated memory is still 167.8MB. Free memory was 136.1MB in the beginning and 99.1MB in the end (delta: 37.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.86ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 87.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 134.36ms. Allocated memory is still 167.8MB. Free memory was 87.8MB in the beginning and 81.3MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 12461.80ms. Allocated memory was 167.8MB in the beginning and 549.5MB in the end (delta: 381.7MB). Free memory was 81.3MB in the beginning and 322.7MB in the end (delta: -241.4MB). Peak memory consumption was 290.4MB. Max. memory is 16.1GB. * TraceAbstraction took 691.55ms. Allocated memory is still 549.5MB. Free memory was 322.7MB in the beginning and 288.1MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 10.58ms. Allocated memory is still 549.5MB. Free memory was 288.1MB in the beginning and 288.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. 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 253, overapproximation of bitwiseOr at line 269, overapproximation of bitwiseAnd at line 198. 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_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 32); [L29] const SORT_6 msb_SORT_6 = (SORT_6)1 << (32 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 4); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (4 - 1); [L34] const SORT_14 mask_SORT_14 = (SORT_14)-1 >> (sizeof(SORT_14) * 8 - 64); [L35] const SORT_14 msb_SORT_14 = (SORT_14)1 << (64 - 1); [L37] const SORT_121 mask_SORT_121 = (SORT_121)-1 >> (sizeof(SORT_121) * 8 - 2); [L38] const SORT_121 msb_SORT_121 = (SORT_121)1 << (2 - 1); [L40] const SORT_1 var_56 = 0; [L41] const SORT_6 var_60 = 0; [L42] const SORT_1 var_73 = 1; [L43] const SORT_14 var_77 = 0; [L44] const SORT_10 var_107 = 0; [L45] const SORT_10 var_116 = 2; [L46] const SORT_10 var_119 = 4; [L47] const SORT_10 var_126 = 1; [L48] const SORT_121 var_133 = 1; [L49] const SORT_121 var_136 = 3; [L50] const SORT_121 var_139 = 2; [L52] SORT_1 input_2; [L53] SORT_1 input_3; [L54] SORT_1 input_4; [L55] SORT_1 input_5; [L56] SORT_6 input_7; [L57] SORT_6 input_8; [L58] SORT_1 input_9; [L59] SORT_10 input_11; [L60] SORT_1 input_12; [L61] SORT_1 input_13; [L62] SORT_14 input_15; [L63] SORT_10 input_16; [L64] SORT_1 input_17; [L65] SORT_6 input_18; [L66] SORT_1 input_19; [L67] SORT_10 input_20; [L68] SORT_10 input_21; [L69] SORT_6 input_22; [L70] SORT_6 input_23; [L71] SORT_1 input_24; [L72] SORT_14 input_25; [L73] SORT_10 input_26; [L74] SORT_1 input_27; [L75] SORT_6 input_28; [L76] SORT_6 input_29; [L77] SORT_6 input_30; [L78] SORT_6 input_31; [L79] SORT_10 input_32; [L80] SORT_10 input_33; [L81] SORT_10 input_34; [L82] SORT_10 input_35; [L83] SORT_10 input_36; [L84] SORT_10 input_37; [L85] SORT_10 input_38; [L86] SORT_10 input_39; [L87] SORT_1 input_40; [L88] SORT_1 input_41; [L89] SORT_1 input_42; [L90] SORT_1 input_43; [L91] SORT_1 input_44; [L92] SORT_1 input_45; [L93] SORT_14 input_46; [L94] SORT_14 input_47; [L95] SORT_14 input_48; [L96] SORT_14 input_49; [L97] SORT_6 input_50; [L98] SORT_6 input_51; [L99] SORT_1 input_52; [L100] SORT_1 input_53; [L101] SORT_1 input_54; [L102] SORT_1 input_55; [L104] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_6 state_61 = __VERIFIER_nondet_uint() & mask_SORT_6; [L106] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_6 state_66 = __VERIFIER_nondet_uint() & mask_SORT_6; [L108] SORT_14 state_78 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L109] SORT_14 state_81 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L110] SORT_1 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_6 state_90 = __VERIFIER_nondet_uint() & mask_SORT_6; [L112] SORT_6 state_96 = __VERIFIER_nondet_uint() & mask_SORT_6; [L113] SORT_10 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L114] SORT_10 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L115] SORT_1 state_145 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_148 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_10 state_153 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L118] SORT_10 state_156 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L119] SORT_1 state_171 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_174 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_14 state_213 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L122] SORT_14 state_216 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L123] SORT_1 state_219 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_10 state_222 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L125] SORT_1 state_227 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_6 state_234 = __VERIFIER_nondet_uint() & mask_SORT_6; [L127] SORT_1 state_237 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_10 state_242 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L129] SORT_6 state_263 = __VERIFIER_nondet_uint() & mask_SORT_6; [L130] SORT_10 state_274 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L131] SORT_1 state_302 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_10 state_307 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L133] SORT_1 state_323 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 init_58_arg_1 = var_56; [L136] state_57 = init_58_arg_1 [L137] SORT_6 init_62_arg_1 = var_60; [L138] state_61 = init_62_arg_1 [L139] SORT_1 init_64_arg_1 = var_56; [L140] state_63 = init_64_arg_1 [L141] SORT_6 init_67_arg_1 = var_60; [L142] state_66 = init_67_arg_1 [L143] SORT_14 init_79_arg_1 = var_77; [L144] state_78 = init_79_arg_1 [L145] SORT_14 init_82_arg_1 = var_77; [L146] state_81 = init_82_arg_1 [L147] SORT_1 init_85_arg_1 = var_56; [L148] state_84 = init_85_arg_1 [L149] SORT_6 init_91_arg_1 = var_60; [L150] state_90 = init_91_arg_1 [L151] SORT_6 init_97_arg_1 = var_60; [L152] state_96 = init_97_arg_1 [L153] SORT_10 init_109_arg_1 = var_107; [L154] state_108 = init_109_arg_1 [L155] SORT_10 init_112_arg_1 = var_107; [L156] state_111 = init_112_arg_1 [L157] SORT_1 init_146_arg_1 = var_56; [L158] state_145 = init_146_arg_1 [L159] SORT_1 init_149_arg_1 = var_56; [L160] state_148 = init_149_arg_1 [L161] SORT_10 init_154_arg_1 = var_107; [L162] state_153 = init_154_arg_1 [L163] SORT_10 init_157_arg_1 = var_107; [L164] state_156 = init_157_arg_1 [L165] SORT_1 init_172_arg_1 = var_56; [L166] state_171 = init_172_arg_1 [L167] SORT_1 init_175_arg_1 = var_56; [L168] state_174 = init_175_arg_1 [L169] SORT_14 init_214_arg_1 = var_77; [L170] state_213 = init_214_arg_1 [L171] SORT_14 init_217_arg_1 = var_77; [L172] state_216 = init_217_arg_1 [L173] SORT_1 init_220_arg_1 = var_56; [L174] state_219 = init_220_arg_1 [L175] SORT_10 init_223_arg_1 = var_107; [L176] state_222 = init_223_arg_1 [L177] SORT_1 init_228_arg_1 = var_56; [L178] state_227 = init_228_arg_1 [L179] SORT_6 init_235_arg_1 = var_60; [L180] state_234 = init_235_arg_1 [L181] SORT_1 init_238_arg_1 = var_56; [L182] state_237 = init_238_arg_1 [L183] SORT_10 init_243_arg_1 = var_107; [L184] state_242 = init_243_arg_1 [L185] SORT_6 init_264_arg_1 = var_60; [L186] state_263 = init_264_arg_1 [L187] SORT_10 init_275_arg_1 = var_107; [L188] state_274 = init_275_arg_1 [L189] SORT_1 init_303_arg_1 = var_56; [L190] state_302 = init_303_arg_1 [L191] SORT_10 init_308_arg_1 = var_107; [L192] state_307 = init_308_arg_1 [L193] SORT_1 init_324_arg_1 = var_56; [L194] state_323 = init_324_arg_1 VAL [init_109_arg_1=0, init_112_arg_1=0, init_146_arg_1=0, init_149_arg_1=0, init_154_arg_1=0, init_157_arg_1=0, init_172_arg_1=0, init_175_arg_1=0, init_214_arg_1=0, init_217_arg_1=0, init_220_arg_1=0, init_223_arg_1=0, init_228_arg_1=0, init_235_arg_1=0, init_238_arg_1=0, init_243_arg_1=0, init_264_arg_1=0, init_275_arg_1=0, init_303_arg_1=0, init_308_arg_1=0, init_324_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_67_arg_1=0, init_79_arg_1=0, init_82_arg_1=0, init_85_arg_1=0, init_91_arg_1=0, init_97_arg_1=0, mask_SORT_1=1, mask_SORT_10=15, mask_SORT_121=3, mask_SORT_14=18446744073709551615, mask_SORT_6=4294967295, msb_SORT_1=1, msb_SORT_10=8, msb_SORT_121=2, msb_SORT_14=9223372036854775808, msb_SORT_6=2147483648, state_108=0, state_111=0, state_145=0, state_148=0, state_153=0, state_156=0, state_171=0, state_174=0, state_213=0, state_216=0, state_219=0, state_222=0, state_227=0, state_234=0, state_237=0, state_242=0, state_263=0, state_274=0, state_302=0, state_307=0, state_323=0, state_57=0, state_61=0, state_63=0, state_66=0, state_78=0, state_81=0, state_84=0, state_90=0, state_96=0, var_107=0, var_116=2, var_119=4, var_126=1, var_133=1, var_136=3, var_139=2, var_56=0, var_60=0, var_73=1, var_77=0] [L197] input_2 = __VERIFIER_nondet_uchar() [L198] input_2 = input_2 & mask_SORT_1 [L199] input_3 = __VERIFIER_nondet_uchar() [L200] input_4 = __VERIFIER_nondet_uchar() [L201] input_5 = __VERIFIER_nondet_uchar() [L202] input_7 = __VERIFIER_nondet_uint() [L203] input_8 = __VERIFIER_nondet_uint() [L204] input_9 = __VERIFIER_nondet_uchar() [L205] input_9 = input_9 & mask_SORT_1 [L206] input_11 = __VERIFIER_nondet_uchar() [L207] input_12 = __VERIFIER_nondet_uchar() [L208] input_13 = __VERIFIER_nondet_uchar() [L209] input_15 = __VERIFIER_nondet_ulong() [L210] input_16 = __VERIFIER_nondet_uchar() [L211] input_17 = __VERIFIER_nondet_uchar() [L212] input_18 = __VERIFIER_nondet_uint() [L213] input_19 = __VERIFIER_nondet_uchar() [L214] input_20 = __VERIFIER_nondet_uchar() [L215] input_21 = __VERIFIER_nondet_uchar() [L216] input_22 = __VERIFIER_nondet_uint() [L217] input_23 = __VERIFIER_nondet_uint() [L218] input_24 = __VERIFIER_nondet_uchar() [L219] input_25 = __VERIFIER_nondet_ulong() [L220] input_26 = __VERIFIER_nondet_uchar() [L221] input_27 = __VERIFIER_nondet_uchar() [L222] input_28 = __VERIFIER_nondet_uint() [L223] input_29 = __VERIFIER_nondet_uint() [L224] input_30 = __VERIFIER_nondet_uint() [L225] input_31 = __VERIFIER_nondet_uint() [L226] input_32 = __VERIFIER_nondet_uchar() [L227] input_33 = __VERIFIER_nondet_uchar() [L228] input_34 = __VERIFIER_nondet_uchar() [L229] input_35 = __VERIFIER_nondet_uchar() [L230] input_36 = __VERIFIER_nondet_uchar() [L231] input_37 = __VERIFIER_nondet_uchar() [L232] input_38 = __VERIFIER_nondet_uchar() [L233] input_39 = __VERIFIER_nondet_uchar() [L234] input_40 = __VERIFIER_nondet_uchar() [L235] input_41 = __VERIFIER_nondet_uchar() [L236] input_42 = __VERIFIER_nondet_uchar() [L237] input_43 = __VERIFIER_nondet_uchar() [L238] input_44 = __VERIFIER_nondet_uchar() [L239] input_45 = __VERIFIER_nondet_uchar() [L240] input_46 = __VERIFIER_nondet_ulong() [L241] input_47 = __VERIFIER_nondet_ulong() [L242] input_48 = __VERIFIER_nondet_ulong() [L243] input_49 = __VERIFIER_nondet_ulong() [L244] input_50 = __VERIFIER_nondet_uint() [L245] input_51 = __VERIFIER_nondet_uint() [L246] input_52 = __VERIFIER_nondet_uchar() [L247] input_53 = __VERIFIER_nondet_uchar() [L248] input_54 = __VERIFIER_nondet_uchar() [L249] input_55 = __VERIFIER_nondet_uchar() [L252] SORT_1 var_59_arg_0 = state_57; [L253] SORT_1 var_59 = ~var_59_arg_0; [L254] SORT_1 var_65_arg_0 = state_63; [L255] SORT_6 var_65_arg_1 = state_61; [L256] SORT_6 var_65_arg_2 = input_18; [L257] SORT_6 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L258] var_65 = var_65 & mask_SORT_6 [L259] SORT_1 var_68_arg_0 = state_63; [L260] SORT_6 var_68_arg_1 = state_66; [L261] SORT_6 var_68_arg_2 = input_18; [L262] SORT_6 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L263] var_68 = var_68 & mask_SORT_6 [L264] SORT_6 var_69_arg_0 = var_65; [L265] SORT_6 var_69_arg_1 = var_68; [L266] SORT_1 var_69 = var_69_arg_0 == var_69_arg_1; [L267] SORT_1 var_70_arg_0 = var_59; [L268] SORT_1 var_70_arg_1 = var_69; [L269] SORT_1 var_70 = var_70_arg_0 | var_70_arg_1; [L270] SORT_1 var_74_arg_0 = var_70; [L271] SORT_1 var_74 = ~var_74_arg_0; [L272] SORT_1 var_75_arg_0 = var_73; [L273] SORT_1 var_75_arg_1 = var_74; [L274] SORT_1 var_75 = var_75_arg_0 & var_75_arg_1; [L275] var_75 = var_75 & mask_SORT_1 [L276] SORT_1 bad_76_arg_0 = var_75; [L277] CALL __VERIFIER_assert(!(bad_76_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: 0.5s, 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, 0.2s 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 09:28:37,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 6b05f6b8a74845cd1807b48d64b2a001b228d836df38230df5acfa492c9d217b --- 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 09:28:39,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:39,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:39,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:39,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:39,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:39,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:39,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:39,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:39,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:39,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:39,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:39,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:39,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:39,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:39,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:39,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:39,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:39,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:39,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:39,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:39,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:39,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:39,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:39,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:39,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:39,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:39,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:39,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:39,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:39,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:39,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:39,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:39,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:39,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:39,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:39,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:39,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:39,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:39,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:39,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:39,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:28:39,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:39,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:39,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:39,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:39,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:39,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:39,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:39,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:39,703 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:39,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:39,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:39,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:39,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:39,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:39,705 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:28:39,705 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:28:39,706 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:28:39,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:39,706 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:39,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:39,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:39,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:39,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:39,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:39,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:39,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:39,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:39,708 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:28:39,708 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:28:39,708 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:39,709 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:39,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:39,709 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:28:39,709 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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b05f6b8a74845cd1807b48d64b2a001b228d836df38230df5acfa492c9d217b [2022-11-20 09:28:40,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:40,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:40,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:40,118 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:40,120 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:40,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c [2022-11-20 09:28:43,418 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:43,699 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:43,700 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c [2022-11-20 09:28:43,716 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/data/cb3b108d6/a15d0f9b34fa43d893d7773496dfc8cb/FLAG9e4a1a371 [2022-11-20 09:28:43,737 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/data/cb3b108d6/a15d0f9b34fa43d893d7773496dfc8cb [2022-11-20 09:28:43,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:43,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:43,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:43,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:43,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:43,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:43" (1/1) ... [2022-11-20 09:28:43,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f6a5dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:43, skipping insertion in model container [2022-11-20 09:28:43,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:43" (1/1) ... [2022-11-20 09:28:43,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:43,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:44,004 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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c[1107,1120] [2022-11-20 09:28:44,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:44,339 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:28:44,350 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_8e7f059c-e0c6-4cd3-aaee-049da79d2163/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c[1107,1120] [2022-11-20 09:28:44,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:44,499 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:28:44,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44 WrapperNode [2022-11-20 09:28:44,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:44,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:44,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:28:44,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:28:44,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,652 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1234 [2022-11-20 09:28:44,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:44,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:28:44,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:28:44,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:28:44,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:28:44,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:28:44,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:28:44,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:28:44,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (1/1) ... [2022-11-20 09:28:44,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:44,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:44,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:44,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:28:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:28:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:28:45,308 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:28:45,310 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:47,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:47,041 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:47,041 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:28:47,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:47 BoogieIcfgContainer [2022-11-20 09:28:47,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:47,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:47,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:47,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:47,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:43" (1/3) ... [2022-11-20 09:28:47,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46dcfc86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:47, skipping insertion in model container [2022-11-20 09:28:47,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:44" (2/3) ... [2022-11-20 09:28:47,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46dcfc86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:47, skipping insertion in model container [2022-11-20 09:28:47,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:47" (3/3) ... [2022-11-20 09:28:47,056 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal2.c [2022-11-20 09:28:47,079 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:47,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:28:47,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:28:47,153 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;@77190e44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:28:47,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:28:47,158 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 09:28:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 09:28:47,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:47,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 09:28:47,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:47,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:47,175 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 09:28:47,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:47,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531091077] [2022-11-20 09:28:47,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:47,192 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 09:28:47,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:47,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:47,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 09:28:47,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:47,750 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 09:28:47,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:47,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:47,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531091077] [2022-11-20 09:28:47,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531091077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:47,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:47,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:28:47,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296960146] [2022-11-20 09:28:47,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:47,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:28:47,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:47,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:28:47,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:28:47,807 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 09:28:48,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:48,184 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 09:28:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:28:48,186 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 09:28:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:48,194 INFO L225 Difference]: With dead ends: 20 [2022-11-20 09:28:48,194 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 09:28:48,197 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 09:28:48,200 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:48,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:28:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 09:28:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 09:28:48,231 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 09:28:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 09:28:48,233 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 09:28:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:48,233 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 09:28:48,233 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 09:28:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 09:28:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 09:28:48,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:48,234 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:48,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:48,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:48,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:48,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:48,449 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 09:28:48,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:48,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687222919] [2022-11-20 09:28:48,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:48,453 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 09:28:48,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:48,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:48,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:49,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-20 09:28:49,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:49,709 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 09:28:49,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:28:50,519 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 09:28:50,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:50,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687222919] [2022-11-20 09:28:50,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687222919] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:28:50,521 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:28:50,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 09:28:50,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984079896] [2022-11-20 09:28:50,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:28:50,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 09:28:50,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:50,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 09:28:50,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:28:50,524 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 09:28:51,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:51,396 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 09:28:51,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:51,397 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 09:28:51,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:51,398 INFO L225 Difference]: With dead ends: 16 [2022-11-20 09:28:51,398 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 09:28:51,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:28:51,400 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:51,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 10 Unchecked, 0.8s Time] [2022-11-20 09:28:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 09:28:51,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 09:28:51,405 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 09:28:51,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 09:28:51,405 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 09:28:51,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:51,406 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 09:28:51,406 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 09:28:51,406 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 09:28:51,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:28:51,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:51,407 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 09:28:51,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:51,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:51,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:51,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:51,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 09:28:51,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:51,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723607973] [2022-11-20 09:28:51,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:28:51,630 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 09:28:51,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:51,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:51,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e7f059c-e0c6-4cd3-aaee-049da79d2163/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 09:28:54,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 09:28:54,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:28:54,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 493 conjunts are in the unsatisfiable core [2022-11-20 09:28:54,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:01,747 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 09:30:01,747 INFO L328 TraceCheckSpWp]: Computing backward predicates...