./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8 --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 b2961e0c3cff6ba3de8f52f848e2cfbfe98366156ba986ccbf628e37437b6d1d --- 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-2329fc7 [2022-12-13 16:03:13,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:03:13,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:03:13,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:03:13,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:03:13,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:03:13,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:03:13,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:03:13,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:03:13,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:03:13,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:03:13,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:03:13,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:03:13,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:03:13,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:03:13,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:03:13,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:03:13,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:03:13,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:03:13,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:03:13,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:03:13,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:03:13,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:03:13,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:03:13,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:03:13,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:03:13,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:03:13,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:03:13,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:03:13,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:03:13,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:03:13,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:03:13,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:03:13,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:03:13,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:03:13,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:03:13,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:03:13,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:03:13,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:03:13,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:03:13,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:03:13,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 16:03:13,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:03:13,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:03:13,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:03:13,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:03:13,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:03:13,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:03:13,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:03:13,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:03:13,577 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:03:13,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:03:13,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:03:13,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:03:13,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:03:13,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:03:13,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:03:13,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:03:13,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:03:13,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:03:13,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:03:13,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:03:13,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:03:13,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:03:13,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:03:13,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:03:13,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:03:13,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:03:13,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:03:13,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:03:13,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:03:13,587 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:03:13,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:03:13,587 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:03:13,587 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2961e0c3cff6ba3de8f52f848e2cfbfe98366156ba986ccbf628e37437b6d1d [2022-12-13 16:03:13,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:03:13,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:03:13,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:03:13,809 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:03:13,810 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:03:13,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c [2022-12-13 16:03:16,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:03:16,513 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:03:16,513 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c [2022-12-13 16:03:16,518 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/data/b2d834cb3/0bb81d4c0a0b4adf9aedf9d046a8de0d/FLAG277a00e27 [2022-12-13 16:03:16,924 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/data/b2d834cb3/0bb81d4c0a0b4adf9aedf9d046a8de0d [2022-12-13 16:03:16,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:03:16,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:03:16,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:03:16,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:03:16,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:03:16,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:03:16" (1/1) ... [2022-12-13 16:03:16,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5317b7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:16, skipping insertion in model container [2022-12-13 16:03:16,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:03:16" (1/1) ... [2022-12-13 16:03:16,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:03:16,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:03:17,040 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_0acf2ab1-04a4-42cc-afee-8e7526a01112/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c[1107,1120] [2022-12-13 16:03:17,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:03:17,078 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:03:17,086 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_0acf2ab1-04a4-42cc-afee-8e7526a01112/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c[1107,1120] [2022-12-13 16:03:17,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:03:17,114 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:03:17,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17 WrapperNode [2022-12-13 16:03:17,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:03:17,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:03:17,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:03:17,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:03:17,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,154 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 178 [2022-12-13 16:03:17,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:03:17,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:03:17,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:03:17,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:03:17,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,177 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:03:17,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:03:17,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:03:17,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:03:17,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (1/1) ... [2022-12-13 16:03:17,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:03:17,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:03:17,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:03:17,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:03:17,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:03:17,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:03:17,317 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:03:17,319 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:03:17,559 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:03:17,565 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:03:17,565 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:03:17,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:03:17 BoogieIcfgContainer [2022-12-13 16:03:17,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:03:17,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:03:17,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:03:17,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:03:17,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:03:16" (1/3) ... [2022-12-13 16:03:17,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232d3762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:03:17, skipping insertion in model container [2022-12-13 16:03:17,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:17" (2/3) ... [2022-12-13 16:03:17,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232d3762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:03:17, skipping insertion in model container [2022-12-13 16:03:17,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:03:17" (3/3) ... [2022-12-13 16:03:17,574 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mul1.c [2022-12-13 16:03:17,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:03:17,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:03:17,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:03:17,628 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;@7c07f95c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:03:17,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:03:17,631 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) [2022-12-13 16:03:17,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 16:03:17,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:03:17,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 16:03:17,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:03:17,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:03:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 16:03:17,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:03:17,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428357921] [2022-12-13 16:03:17,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:03:17,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:03:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:03:17,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:03:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:03:17,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:03:17,813 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:03:17,814 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 16:03:17,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:03:17,819 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 16:03:17,822 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:03:17,833 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 16:03:17,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:03:17 BoogieIcfgContainer [2022-12-13 16:03:17,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:03:17,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:03:17,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:03:17,839 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:03:17,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:03:17" (3/4) ... [2022-12-13 16:03:17,842 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:03:17,842 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:03:17,843 INFO L158 Benchmark]: Toolchain (without parser) took 915.33ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 81.4MB in the beginning and 92.9MB in the end (delta: -11.5MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-12-13 16:03:17,843 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:03:17,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.48ms. Allocated memory is still 115.3MB. Free memory was 81.4MB in the beginning and 68.5MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 16:03:17,844 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.18ms. Allocated memory is still 115.3MB. Free memory was 68.5MB in the beginning and 65.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:03:17,844 INFO L158 Benchmark]: Boogie Preprocessor took 26.06ms. Allocated memory is still 115.3MB. Free memory was 65.8MB in the beginning and 64.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:03:17,845 INFO L158 Benchmark]: RCFGBuilder took 384.90ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 64.3MB in the beginning and 113.1MB in the end (delta: -48.8MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2022-12-13 16:03:17,845 INFO L158 Benchmark]: TraceAbstraction took 269.48ms. Allocated memory is still 144.7MB. Free memory was 112.3MB in the beginning and 92.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 16:03:17,845 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 144.7MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:03:17,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.48ms. Allocated memory is still 115.3MB. Free memory was 81.4MB in the beginning and 68.5MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.18ms. Allocated memory is still 115.3MB. Free memory was 68.5MB in the beginning and 65.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.06ms. Allocated memory is still 115.3MB. Free memory was 65.8MB in the beginning and 64.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 384.90ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 64.3MB in the beginning and 113.1MB in the end (delta: -48.8MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * TraceAbstraction took 269.48ms. Allocated memory is still 144.7MB. Free memory was 112.3MB in the beginning and 92.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 144.7MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 87, overapproximation of bitwiseAnd at line 74. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 32); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (32 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 64); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (64 - 1); [L34] const SORT_9 var_10 = 0; [L35] const SORT_1 var_18 = 1; [L36] const SORT_5 var_22 = 0; [L38] SORT_1 input_2; [L39] SORT_1 input_3; [L40] SORT_1 input_4; [L41] SORT_5 input_6; [L42] SORT_5 input_7; [L43] SORT_1 input_8; [L45] SORT_9 state_11 = __VERIFIER_nondet_ulong() & mask_SORT_9; [L46] SORT_9 state_13 = __VERIFIER_nondet_ulong() & mask_SORT_9; [L47] SORT_5 state_23 = __VERIFIER_nondet_uint() & mask_SORT_5; [L48] SORT_5 state_25 = __VERIFIER_nondet_uint() & mask_SORT_5; [L49] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L51] SORT_5 state_31 = __VERIFIER_nondet_uint() & mask_SORT_5; [L52] SORT_5 state_33 = __VERIFIER_nondet_uint() & mask_SORT_5; [L54] SORT_9 init_12_arg_1 = var_10; [L55] state_11 = init_12_arg_1 [L56] SORT_9 init_14_arg_1 = var_10; [L57] state_13 = init_14_arg_1 [L58] SORT_5 init_24_arg_1 = var_22; [L59] state_23 = init_24_arg_1 [L60] SORT_5 init_26_arg_1 = var_22; [L61] state_25 = init_26_arg_1 [L62] SORT_1 init_28_arg_1 = var_18; [L63] state_27 = init_28_arg_1 [L64] SORT_1 init_30_arg_1 = var_18; [L65] state_29 = init_30_arg_1 [L66] SORT_5 init_32_arg_1 = var_22; [L67] state_31 = init_32_arg_1 [L68] SORT_5 init_34_arg_1 = var_22; [L69] state_33 = init_34_arg_1 VAL [init_12_arg_1=0, init_14_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=1, init_30_arg_1=1, init_32_arg_1=0, init_34_arg_1=0, mask_SORT_1=1, mask_SORT_5=4294967295, mask_SORT_9=18446744073709551615, msb_SORT_1=1, msb_SORT_5=2147483648, msb_SORT_9=9223372036854775808, state_11=0, state_13=0, state_23=0, state_25=0, state_27=1, state_29=1, state_31=0, state_33=0, var_10=0, var_18=1, var_22=0] [L72] input_2 = __VERIFIER_nondet_uchar() [L73] input_3 = __VERIFIER_nondet_uchar() [L74] input_3 = input_3 & mask_SORT_1 [L75] input_4 = __VERIFIER_nondet_uchar() [L76] input_4 = input_4 & mask_SORT_1 [L77] input_6 = __VERIFIER_nondet_uint() [L78] input_7 = __VERIFIER_nondet_uint() [L79] input_8 = __VERIFIER_nondet_uchar() [L80] input_8 = input_8 & mask_SORT_1 [L83] SORT_9 var_15_arg_0 = state_11; [L84] SORT_9 var_15_arg_1 = state_13; [L85] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L86] SORT_1 var_19_arg_0 = var_15; [L87] SORT_1 var_19 = ~var_19_arg_0; [L88] SORT_1 var_20_arg_0 = var_18; [L89] SORT_1 var_20_arg_1 = var_19; [L90] SORT_1 var_20 = var_20_arg_0 & var_20_arg_1; [L91] var_20 = var_20 & mask_SORT_1 [L92] SORT_1 bad_21_arg_0 = var_20; [L93] CALL __VERIFIER_assert(!(bad_21_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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 16:03:17,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8 --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 b2961e0c3cff6ba3de8f52f848e2cfbfe98366156ba986ccbf628e37437b6d1d --- 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-2329fc7 [2022-12-13 16:03:19,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:03:19,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:03:19,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:03:19,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:03:19,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:03:19,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:03:19,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:03:19,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:03:19,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:03:19,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:03:19,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:03:19,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:03:19,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:03:19,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:03:19,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:03:19,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:03:19,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:03:19,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:03:19,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:03:19,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:03:19,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:03:19,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:03:19,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:03:19,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:03:19,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:03:19,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:03:19,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:03:19,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:03:19,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:03:19,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:03:19,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:03:19,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:03:19,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:03:19,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:03:19,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:03:19,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:03:19,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:03:19,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:03:19,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:03:19,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:03:19,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 16:03:19,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:03:19,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:03:19,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:03:19,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:03:19,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:03:19,624 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:03:19,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:03:19,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:03:19,626 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:03:19,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:03:19,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:03:19,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:03:19,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:03:19,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:03:19,627 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:03:19,627 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:03:19,627 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:03:19,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:03:19,627 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:03:19,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:03:19,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:03:19,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:03:19,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:03:19,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:03:19,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:03:19,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:03:19,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:03:19,629 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:03:19,629 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:03:19,629 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:03:19,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:03:19,630 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:03:19,630 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:03:19,630 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:03:19,630 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:03:19,631 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2961e0c3cff6ba3de8f52f848e2cfbfe98366156ba986ccbf628e37437b6d1d [2022-12-13 16:03:19,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:03:19,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:03:19,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:03:19,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:03:19,871 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:03:19,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c [2022-12-13 16:03:22,448 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:03:22,617 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:03:22,618 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c [2022-12-13 16:03:22,625 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/data/07a5df36a/fe772edfba05447589202c1370c32756/FLAGb574979e9 [2022-12-13 16:03:22,635 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/data/07a5df36a/fe772edfba05447589202c1370c32756 [2022-12-13 16:03:22,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:03:22,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:03:22,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:03:22,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:03:22,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:03:22,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a4df99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22, skipping insertion in model container [2022-12-13 16:03:22,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:03:22,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:03:22,762 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_0acf2ab1-04a4-42cc-afee-8e7526a01112/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c[1107,1120] [2022-12-13 16:03:22,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:03:22,824 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:03:22,835 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_0acf2ab1-04a4-42cc-afee-8e7526a01112/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul1.c[1107,1120] [2022-12-13 16:03:22,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:03:22,876 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:03:22,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22 WrapperNode [2022-12-13 16:03:22,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:03:22,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:03:22,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:03:22,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:03:22,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,918 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 178 [2022-12-13 16:03:22,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:03:22,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:03:22,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:03:22,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:03:22,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,949 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:03:22,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:03:22,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:03:22,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:03:22,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (1/1) ... [2022-12-13 16:03:22,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:03:22,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:03:22,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:03:22,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:03:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:03:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:03:23,093 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:03:23,094 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:03:23,417 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:03:23,423 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:03:23,424 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:03:23,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:03:23 BoogieIcfgContainer [2022-12-13 16:03:23,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:03:23,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:03:23,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:03:23,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:03:23,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:03:22" (1/3) ... [2022-12-13 16:03:23,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4158b0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:03:23, skipping insertion in model container [2022-12-13 16:03:23,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:03:22" (2/3) ... [2022-12-13 16:03:23,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4158b0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:03:23, skipping insertion in model container [2022-12-13 16:03:23,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:03:23" (3/3) ... [2022-12-13 16:03:23,433 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mul1.c [2022-12-13 16:03:23,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:03:23,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:03:23,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:03:23,489 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;@79227dc1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:03:23,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:03:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:03:23,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 16:03:23,496 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:03:23,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 16:03:23,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:03:23,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:03:23,501 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 16:03:23,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:03:23,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080151718] [2022-12-13 16:03:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:03:23,509 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 [2022-12-13 16:03:23,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:03:23,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:03:23,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:03:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:23,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 16:03:23,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:03:23,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:03:23,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:03:23,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:03:23,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080151718] [2022-12-13 16:03:23,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080151718] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:03:23,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:03:23,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:03:23,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894132665] [2022-12-13 16:03:23,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:03:23,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:03:23,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:03:23,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:03:23,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:03:23,740 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) [2022-12-13 16:03:24,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:03:24,024 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-13 16:03:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:03:24,026 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 [2022-12-13 16:03:24,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:03:24,030 INFO L225 Difference]: With dead ends: 20 [2022-12-13 16:03:24,030 INFO L226 Difference]: Without dead ends: 11 [2022-12-13 16:03:24,032 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 [2022-12-13 16:03:24,034 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-12-13 16:03:24,035 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] [2022-12-13 16:03:24,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-13 16:03:24,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 16:03:24,054 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) [2022-12-13 16:03:24,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 16:03:24,055 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-13 16:03:24,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:03:24,055 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 16:03:24,055 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) [2022-12-13 16:03:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 16:03:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 16:03:24,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:03:24,056 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 16:03:24,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:03:24,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:03:24,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:03:24,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:03:24,260 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-13 16:03:24,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:03:24,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146956542] [2022-12-13 16:03:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:03:24,264 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 [2022-12-13 16:03:24,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:03:24,268 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:03:24,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:03:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:24,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-13 16:03:24,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:03:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:03:24,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:03:35,052 WARN L233 SmtUtils]: Spent 7.68s on a formula simplification. DAG size of input: 68 DAG size of output: 57 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 16:03:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:03:41,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:03:41,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146956542] [2022-12-13 16:03:41,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146956542] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:03:41,202 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:03:41,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 16:03:41,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907034823] [2022-12-13 16:03:41,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:03:41,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:03:41,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:03:41,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:03:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=65, Unknown=1, NotChecked=0, Total=90 [2022-12-13 16:03:41,205 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-12-13 16:03:43,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:03:43,210 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-13 16:03:43,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:03:43,211 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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 [2022-12-13 16:03:43,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:03:43,212 INFO L225 Difference]: With dead ends: 16 [2022-12-13 16:03:43,212 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 16:03:43,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=49, Invalid=106, Unknown=1, NotChecked=0, Total=156 [2022-12-13 16:03:43,214 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:03:43,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 16:03:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 16:03:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-13 16:03:43,218 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) [2022-12-13 16:03:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-13 16:03:43,218 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-13 16:03:43,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:03:43,219 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-13 16:03:43,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-12-13 16:03:43,219 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-13 16:03:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:03:43,220 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:03:43,220 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 16:03:43,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 16:03:43,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:03:43,422 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:03:43,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:03:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-13 16:03:43,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:03:43,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856649789] [2022-12-13 16:03:43,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:03:43,430 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 [2022-12-13 16:03:43,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:03:43,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:03:43,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf2ab1-04a4-42cc-afee-8e7526a01112/bin/uautomizer-uyxdKDjOR8/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