./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R --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 082c74283cb4e90006a36b616f3f245c79d7cd549b9554e45e092a29b82fdccd --- 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-38b53e6 [2022-11-25 17:40:26,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:40:26,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:40:26,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:40:26,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:40:26,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:40:26,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:40:26,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:40:26,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:40:26,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:40:26,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:40:26,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:40:26,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:40:26,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:40:26,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:40:26,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:40:26,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:40:26,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:40:26,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:40:26,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:40:26,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:40:27,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:40:27,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:40:27,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:40:27,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:40:27,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:40:27,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:40:27,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:40:27,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:40:27,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:40:27,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:40:27,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:40:27,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:40:27,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:40:27,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:40:27,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:40:27,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:40:27,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:40:27,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:40:27,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:40:27,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:40:27,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:40:27,082 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:40:27,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:40:27,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:40:27,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:40:27,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:40:27,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:40:27,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:40:27,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:40:27,086 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:40:27,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:40:27,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:40:27,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:40:27,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:40:27,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:40:27,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:40:27,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:40:27,089 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:40:27,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:40:27,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:40:27,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:40:27,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:40:27,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:27,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:40:27,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:40:27,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:40:27,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:40:27,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:40:27,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:40:27,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:40:27,093 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:40:27,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:40:27,094 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_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 082c74283cb4e90006a36b616f3f245c79d7cd549b9554e45e092a29b82fdccd [2022-11-25 17:40:27,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:40:27,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:40:27,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:40:27,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:40:27,417 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:40:27,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c [2022-11-25 17:40:31,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:40:31,647 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:40:31,648 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c [2022-11-25 17:40:31,661 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/data/7218aaf94/4d93dc0541aa4dcfbc2c1c78ff966b4f/FLAG18becf5ba [2022-11-25 17:40:31,685 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/data/7218aaf94/4d93dc0541aa4dcfbc2c1c78ff966b4f [2022-11-25 17:40:31,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:40:31,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:40:31,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:31,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:40:31,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:40:31,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:31" (1/1) ... [2022-11-25 17:40:31,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282c6ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:31, skipping insertion in model container [2022-11-25 17:40:31,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:31" (1/1) ... [2022-11-25 17:40:31,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:40:31,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:40:31,995 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_0b12d403-bba1-47e7-9810-9eb0cda97528/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c[1107,1120] [2022-11-25 17:40:32,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:32,261 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:40:32,285 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_0b12d403-bba1-47e7-9810-9eb0cda97528/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c[1107,1120] [2022-11-25 17:40:32,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:32,412 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:40:32,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32 WrapperNode [2022-11-25 17:40:32,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:32,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:32,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:40:32,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:40:32,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,542 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 575 [2022-11-25 17:40:32,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:32,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:40:32,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:40:32,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:40:32,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:40:32,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:40:32,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:40:32,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:40:32,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (1/1) ... [2022-11-25 17:40:32,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:32,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:32,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:40:32,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:40:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:40:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:40:32,989 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:40:32,992 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:40:40,613 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:40:40,621 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:40:40,622 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:40:40,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:40 BoogieIcfgContainer [2022-11-25 17:40:40,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:40:40,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:40:40,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:40:40,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:40:40,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:40:31" (1/3) ... [2022-11-25 17:40:40,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f09a102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:40, skipping insertion in model container [2022-11-25 17:40:40,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:32" (2/3) ... [2022-11-25 17:40:40,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f09a102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:40, skipping insertion in model container [2022-11-25 17:40:40,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:40" (3/3) ... [2022-11-25 17:40:40,636 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_ibuf.c [2022-11-25 17:40:40,658 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:40:40,658 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:40:40,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:40,722 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;@7fb033a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:40,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:40:40,728 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) [2022-11-25 17:40:40,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:40:40,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:40,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:40:40,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:40,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:40,744 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:40:40,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:40,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838233395] [2022-11-25 17:40:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:40,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:40:41,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:40:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:40:41,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:40:41,859 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:40:41,861 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:40:41,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:40:41,870 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:40:41,875 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:40:41,919 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 17:40:41,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:40:41 BoogieIcfgContainer [2022-11-25 17:40:41,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:40:41,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:40:41,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:40:41,938 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:40:41,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:40" (3/4) ... [2022-11-25 17:40:41,943 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:40:41,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:40:41,946 INFO L158 Benchmark]: Toolchain (without parser) took 10255.09ms. Allocated memory was 161.5MB in the beginning and 343.9MB in the end (delta: 182.5MB). Free memory was 129.1MB in the beginning and 293.0MB in the end (delta: -163.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-11-25 17:40:41,946 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:40:41,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 721.87ms. Allocated memory is still 161.5MB. Free memory was 129.0MB in the beginning and 104.7MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-25 17:40:41,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.83ms. Allocated memory is still 161.5MB. Free memory was 104.7MB in the beginning and 96.9MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:40:41,951 INFO L158 Benchmark]: Boogie Preprocessor took 104.42ms. Allocated memory is still 161.5MB. Free memory was 96.9MB in the beginning and 93.3MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:40:41,957 INFO L158 Benchmark]: RCFGBuilder took 7976.30ms. Allocated memory was 161.5MB in the beginning and 343.9MB in the end (delta: 182.5MB). Free memory was 93.3MB in the beginning and 179.9MB in the end (delta: -86.5MB). Peak memory consumption was 180.4MB. Max. memory is 16.1GB. [2022-11-25 17:40:41,959 INFO L158 Benchmark]: TraceAbstraction took 1307.92ms. Allocated memory is still 343.9MB. Free memory was 179.9MB in the beginning and 294.1MB in the end (delta: -114.2MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2022-11-25 17:40:41,961 INFO L158 Benchmark]: Witness Printer took 6.56ms. Allocated memory is still 343.9MB. Free memory was 294.1MB in the beginning and 293.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:40:41,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 721.87ms. Allocated memory is still 161.5MB. Free memory was 129.0MB in the beginning and 104.7MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.83ms. Allocated memory is still 161.5MB. Free memory was 104.7MB in the beginning and 96.9MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.42ms. Allocated memory is still 161.5MB. Free memory was 96.9MB in the beginning and 93.3MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 7976.30ms. Allocated memory was 161.5MB in the beginning and 343.9MB in the end (delta: 182.5MB). Free memory was 93.3MB in the beginning and 179.9MB in the end (delta: -86.5MB). Peak memory consumption was 180.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1307.92ms. Allocated memory is still 343.9MB. Free memory was 179.9MB in the beginning and 294.1MB in the end (delta: -114.2MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. * Witness Printer took 6.56ms. Allocated memory is still 343.9MB. Free memory was 294.1MB in the beginning and 293.0MB in the end (delta: 1.1MB). 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 63, overapproximation of bitwiseOr at line 68, overapproximation of bitwiseAnd at line 86. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 2); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (2 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L34] const SORT_5 var_9 = 0; [L35] const SORT_1 var_54 = 1; [L36] const SORT_1 var_165 = 0; [L38] SORT_1 input_2; [L39] SORT_3 input_4; [L40] SORT_5 input_6; [L41] SORT_3 input_7; [L42] SORT_5 input_8; [L44] SORT_5 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L45] SORT_5 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] SORT_5 init_11_arg_1 = var_9; [L48] state_10 = init_11_arg_1 [L49] SORT_5 init_25_arg_1 = var_9; [L50] state_24 = init_25_arg_1 VAL [init_11_arg_1=0, init_25_arg_1=0, mask_SORT_1=1, mask_SORT_3=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_3=2, msb_SORT_5=4, state_10=0, state_24=0, var_165=0, var_54=1, var_9=0] [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_4 = __VERIFIER_nondet_uchar() [L55] input_6 = __VERIFIER_nondet_uchar() [L56] input_7 = __VERIFIER_nondet_uchar() [L57] input_8 = __VERIFIER_nondet_uchar() [L60] SORT_5 var_12_arg_0 = state_10; [L61] SORT_1 var_12 = var_12_arg_0 >> 0; [L62] SORT_1 var_13_arg_0 = var_12; [L63] SORT_1 var_13 = ~var_13_arg_0; [L64] SORT_5 var_14_arg_0 = state_10; [L65] SORT_1 var_14 = var_14_arg_0 >> 1; [L66] SORT_1 var_15_arg_0 = var_13; [L67] SORT_1 var_15_arg_1 = var_14; [L68] SORT_1 var_15 = var_15_arg_0 | var_15_arg_1; [L69] SORT_5 var_16_arg_0 = state_10; [L70] SORT_1 var_16 = var_16_arg_0 >> 2; [L71] SORT_1 var_17_arg_0 = var_16; [L72] SORT_1 var_17 = ~var_17_arg_0; [L73] SORT_1 var_18_arg_0 = var_15; [L74] SORT_1 var_18_arg_1 = var_17; [L75] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L76] SORT_1 var_19_arg_0 = var_14; [L77] SORT_1 var_19 = ~var_19_arg_0; [L78] SORT_1 var_20_arg_0 = var_12; [L79] SORT_1 var_20_arg_1 = var_19; [L80] SORT_1 var_20 = var_20_arg_0 | var_20_arg_1; [L81] SORT_1 var_21_arg_0 = var_20; [L82] SORT_1 var_21_arg_1 = var_16; [L83] SORT_1 var_21 = var_21_arg_0 | var_21_arg_1; [L84] SORT_1 var_22_arg_0 = var_18; [L85] SORT_1 var_22_arg_1 = var_21; [L86] SORT_1 var_22 = var_22_arg_0 & var_22_arg_1; [L87] SORT_1 var_23_arg_0 = var_12; [L88] SORT_1 var_23 = ~var_23_arg_0; [L89] SORT_5 var_26_arg_0 = state_24; [L90] SORT_1 var_26 = var_26_arg_0 >> 0; [L91] SORT_1 var_27_arg_0 = var_23; [L92] SORT_1 var_27_arg_1 = var_26; [L93] SORT_1 var_27 = var_27_arg_0 | var_27_arg_1; [L94] SORT_1 var_28_arg_0 = var_22; [L95] SORT_1 var_28_arg_1 = var_27; [L96] SORT_1 var_28 = var_28_arg_0 & var_28_arg_1; [L97] SORT_1 var_29_arg_0 = var_14; [L98] SORT_1 var_29 = ~var_29_arg_0; [L99] SORT_1 var_30_arg_0 = var_29; [L100] SORT_1 var_30_arg_1 = var_26; [L101] SORT_1 var_30 = var_30_arg_0 | var_30_arg_1; [L102] SORT_1 var_31_arg_0 = var_28; [L103] SORT_1 var_31_arg_1 = var_30; [L104] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L105] SORT_1 var_32_arg_0 = var_16; [L106] SORT_1 var_32 = ~var_32_arg_0; [L107] SORT_5 var_33_arg_0 = state_24; [L108] SORT_1 var_33 = var_33_arg_0 >> 1; [L109] SORT_1 var_34_arg_0 = var_32; [L110] SORT_1 var_34_arg_1 = var_33; [L111] SORT_1 var_34 = var_34_arg_0 | var_34_arg_1; [L112] SORT_1 var_35_arg_0 = var_31; [L113] SORT_1 var_35_arg_1 = var_34; [L114] SORT_1 var_35 = var_35_arg_0 & var_35_arg_1; [L115] SORT_1 var_36_arg_0 = var_33; [L116] SORT_1 var_36 = ~var_36_arg_0; [L117] SORT_1 var_37_arg_0 = var_26; [L118] SORT_1 var_37_arg_1 = var_36; [L119] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L120] SORT_1 var_38_arg_0 = var_37; [L121] SORT_1 var_38 = ~var_38_arg_0; [L122] SORT_1 var_39_arg_0 = var_38; [L123] SORT_1 var_39_arg_1 = var_12; [L124] SORT_1 var_39 = var_39_arg_0 | var_39_arg_1; [L125] SORT_1 var_40_arg_0 = var_35; [L126] SORT_1 var_40_arg_1 = var_39; [L127] SORT_1 var_40 = var_40_arg_0 & var_40_arg_1; [L128] SORT_5 var_41_arg_0 = state_24; [L129] SORT_1 var_41 = var_41_arg_0 >> 2; [L130] SORT_1 var_42_arg_0 = var_41; [L131] SORT_1 var_42 = ~var_42_arg_0; [L132] SORT_1 var_43_arg_0 = var_26; [L133] SORT_1 var_43_arg_1 = var_42; [L134] SORT_1 var_43 = var_43_arg_0 & var_43_arg_1; [L135] SORT_1 var_44_arg_0 = var_43; [L136] SORT_1 var_44 = ~var_44_arg_0; [L137] SORT_1 var_45_arg_0 = var_44; [L138] SORT_1 var_45_arg_1 = var_14; [L139] SORT_1 var_45 = var_45_arg_0 | var_45_arg_1; [L140] SORT_1 var_46_arg_0 = var_40; [L141] SORT_1 var_46_arg_1 = var_45; [L142] SORT_1 var_46 = var_46_arg_0 & var_46_arg_1; [L143] SORT_1 var_47_arg_0 = var_41; [L144] SORT_1 var_47 = ~var_47_arg_0; [L145] SORT_1 var_48_arg_0 = var_33; [L146] SORT_1 var_48_arg_1 = var_47; [L147] SORT_1 var_48 = var_48_arg_0 & var_48_arg_1; [L148] SORT_1 var_49_arg_0 = var_48; [L149] SORT_1 var_49 = ~var_49_arg_0; [L150] SORT_1 var_50_arg_0 = var_49; [L151] SORT_1 var_50_arg_1 = var_16; [L152] SORT_1 var_50 = var_50_arg_0 | var_50_arg_1; [L153] SORT_1 var_51_arg_0 = var_46; [L154] SORT_1 var_51_arg_1 = var_50; [L155] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L156] SORT_1 var_55_arg_0 = var_51; [L157] SORT_1 var_55 = ~var_55_arg_0; [L158] SORT_1 var_56_arg_0 = var_54; [L159] SORT_1 var_56_arg_1 = var_55; [L160] SORT_1 var_56 = var_56_arg_0 & var_56_arg_1; [L161] var_56 = var_56 & mask_SORT_1 [L162] SORT_1 bad_57_arg_0 = var_56; [L163] CALL __VERIFIER_assert(!(bad_57_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: 1.2s, 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, 0.6s 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 [2022-11-25 17:40:42,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R --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 082c74283cb4e90006a36b616f3f245c79d7cd549b9554e45e092a29b82fdccd --- 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-38b53e6 [2022-11-25 17:40:44,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:40:44,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:40:45,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:40:45,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:40:45,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:40:45,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:40:45,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:40:45,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:40:45,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:40:45,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:40:45,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:40:45,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:40:45,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:40:45,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:40:45,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:40:45,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:40:45,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:40:45,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:40:45,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:40:45,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:40:45,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:40:45,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:40:45,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:40:45,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:40:45,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:40:45,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:40:45,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:40:45,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:40:45,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:40:45,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:40:45,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:40:45,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:40:45,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:40:45,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:40:45,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:40:45,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:40:45,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:40:45,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:40:45,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:40:45,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:40:45,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 17:40:45,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:40:45,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:40:45,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:40:45,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:40:45,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:40:45,145 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:40:45,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:40:45,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:40:45,146 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:40:45,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:40:45,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:40:45,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:40:45,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:40:45,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:40:45,149 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:40:45,149 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:40:45,150 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:40:45,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:40:45,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:40:45,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:40:45,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:40:45,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:40:45,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:40:45,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:45,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:40:45,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:40:45,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:40:45,153 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:40:45,153 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:40:45,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:40:45,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:40:45,154 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:40:45,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:40:45,155 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:40:45,155 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_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 082c74283cb4e90006a36b616f3f245c79d7cd549b9554e45e092a29b82fdccd [2022-11-25 17:40:45,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:40:45,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:40:45,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:40:45,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:40:45,667 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:40:45,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c [2022-11-25 17:40:49,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:40:49,602 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:40:49,603 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c [2022-11-25 17:40:49,627 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/data/8f38901f5/0629165381b74d72a414ad9a2ad0a25e/FLAG4ca9aefed [2022-11-25 17:40:49,645 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/data/8f38901f5/0629165381b74d72a414ad9a2ad0a25e [2022-11-25 17:40:49,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:40:49,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:40:49,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:49,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:40:49,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:40:49,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:49" (1/1) ... [2022-11-25 17:40:49,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220b98b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:49, skipping insertion in model container [2022-11-25 17:40:49,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:49" (1/1) ... [2022-11-25 17:40:49,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:40:49,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:40:49,894 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_0b12d403-bba1-47e7-9810-9eb0cda97528/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c[1107,1120] [2022-11-25 17:40:50,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:50,085 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:40:50,097 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_0b12d403-bba1-47e7-9810-9eb0cda97528/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c[1107,1120] [2022-11-25 17:40:50,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:50,253 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:40:50,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50 WrapperNode [2022-11-25 17:40:50,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:50,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:50,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:40:50,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:40:50,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,386 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 575 [2022-11-25 17:40:50,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:50,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:40:50,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:40:50,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:40:50,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,512 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:40:50,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:40:50,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:40:50,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:40:50,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (1/1) ... [2022-11-25 17:40:50,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:50,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:50,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:40:50,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:40:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:40:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:40:50,956 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:40:50,959 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:40:51,795 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:40:51,803 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:40:51,803 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:40:51,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:51 BoogieIcfgContainer [2022-11-25 17:40:51,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:40:51,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:40:51,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:40:51,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:40:51,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:40:49" (1/3) ... [2022-11-25 17:40:51,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9c99c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:51, skipping insertion in model container [2022-11-25 17:40:51,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:50" (2/3) ... [2022-11-25 17:40:51,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9c99c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:51, skipping insertion in model container [2022-11-25 17:40:51,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:51" (3/3) ... [2022-11-25 17:40:51,816 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_ibuf.c [2022-11-25 17:40:51,839 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:40:51,840 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:40:51,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:51,902 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;@6f40f286, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:51,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:40:51,908 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) [2022-11-25 17:40:51,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:40:51,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:51,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:40:51,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:51,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:40:51,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:40:51,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135809515] [2022-11-25 17:40:51,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:51,940 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 [2022-11-25 17:40:51,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:40:51,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:40:51,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:40:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:52,209 WARN L261 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-25 17:40:52,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:52,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:40:52,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:40:52,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135809515] [2022-11-25 17:40:52,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135809515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:52,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:52,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:40:52,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56134318] [2022-11-25 17:40:52,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:52,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:40:52,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:40:52,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:40:52,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:40:52,921 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) [2022-11-25 17:40:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:40:53,060 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 17:40:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:53,064 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 [2022-11-25 17:40:53,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:40:53,076 INFO L225 Difference]: With dead ends: 20 [2022-11-25 17:40:53,077 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 17:40:53,080 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 [2022-11-25 17:40:53,086 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:40:53,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:40:53,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 17:40:53,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 17:40:53,130 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) [2022-11-25 17:40:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 17:40:53,133 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 17:40:53,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:40:53,134 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 17:40:53,135 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) [2022-11-25 17:40:53,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 17:40:53,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:40:53,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:53,136 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:53,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:40:53,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:40:53,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:53,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:53,345 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 17:40:53,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:40:53,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123308946] [2022-11-25 17:40:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:53,348 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 [2022-11-25 17:40:53,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:40:53,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:40:53,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:40:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:53,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-25 17:40:53,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:54,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:41:00,230 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~var_43_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_188_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_145_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_21_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_189_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_223_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_37_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_48_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_18_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_144_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_212_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_50_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_227_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_231_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_217_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_34_arg_1~0#1_3| (_ BitVec 8))) (= ((_ extract 7 0) (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_0~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse11 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_33~0#1|))) (let ((.cse9 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_3~0#1|)) (.cse8 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_0~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_189_arg_0~0#1_3|) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_144_arg_0~0#1_3|) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_26~0#1|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_145_arg_1~0#1_3|)))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_188_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse11))))))))))))))) (.cse10 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_227_arg_0~0#1_3|))))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_231_arg_0~0#1_3|) (_ bv2 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl .cse8 (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse10)))))))))))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse1 (_ bv1 32)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_1~0#1_3|))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_50_arg_1~0#1_3|)))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_223_arg_1~0#1_3|) .cse8))) (_ bv2 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_41~0#1|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_217_arg_0~0#1_3|))))))) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse11))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_212_arg_0~0#1_3|)))) .cse10))))))))))))))))) (let ((.cse6 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse7 (_ bv1 32))))) (.cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse1)))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) .cse7)))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_37_arg_1~0#1_3|))))))) .cse3))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse7 (_ bv2 32))))))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_3|) .cse4))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse6))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse3))) .cse2))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_18_arg_0~0#1_3|) .cse4))) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse5 .cse3)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse2 .cse5))))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse6 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_43_arg_1~0#1_3|) .cse2))))))))))))))))))))))))))))) (_ bv0 8))) is different from false [2022-11-25 17:41:05,043 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~var_43_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_188_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_145_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_21_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_189_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_223_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_37_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_48_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_18_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_144_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_212_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_50_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_227_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_231_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_217_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_34_arg_1~0#1_3| (_ BitVec 8))) (= ((_ extract 7 0) (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_0~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse11 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_24~0#1|))) (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse11 (_ bv1 32)))))) (let ((.cse9 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_3~0#1|)) (.cse8 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_0~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_189_arg_0~0#1_3|) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_145_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse11)) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_144_arg_0~0#1_3|))))))) .cse0)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse12))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_188_arg_1~0#1_3|))))))))))))) (.cse10 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_227_arg_0~0#1_3|))))) (let ((.cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_231_arg_0~0#1_3|) (_ bv2 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl .cse8 (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse10)))))))))))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse6 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_223_arg_1~0#1_3|)))) (_ bv2 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse11 (_ bv2 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_217_arg_0~0#1_3|))))))) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse12))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_212_arg_0~0#1_3|))))))))))))))))))))) (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse6 (_ bv1 32))))) (.cse2 ((_ zero_extend 24) ((_ extract 7 0) .cse7)))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) .cse6)))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_37_arg_1~0#1_3|)))))))))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse6 (_ bv2 32))))))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse3 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_3|)))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse5))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse1)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse4 .cse1)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse3 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_18_arg_0~0#1_3|)))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse4 .cse2))))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_43_arg_1~0#1_3|) .cse2)))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse7 (_ bv1 32)))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_50_arg_1~0#1_3|)))))))))))))))))))) (_ bv0 8))) is different from false [2022-11-25 17:41:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-25 17:41:05,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:41:05,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123308946] [2022-11-25 17:41:05,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123308946] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:41:05,090 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:41:05,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 17:41:05,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557155807] [2022-11-25 17:41:05,095 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:41:05,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:41:05,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:41:05,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:41:05,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=43, Unknown=2, NotChecked=26, Total=90 [2022-11-25 17:41:05,100 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) [2022-11-25 17:41:11,222 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 312 DAG size of output: 90 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:41:16,708 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 314 DAG size of output: 98 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:41:16,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:16,991 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 17:41:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:41:16,992 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 [2022-11-25 17:41:16,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:16,993 INFO L225 Difference]: With dead ends: 16 [2022-11-25 17:41:16,993 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 17:41:16,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=49, Invalid=89, Unknown=2, NotChecked=42, Total=182 [2022-11-25 17:41:16,995 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:16,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 26 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 10 Unchecked, 0.2s Time] [2022-11-25 17:41:16,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 17:41:17,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 17:41:17,005 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) [2022-11-25 17:41:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 17:41:17,015 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 17:41:17,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:17,016 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 17:41:17,016 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) [2022-11-25 17:41:17,016 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 17:41:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:41:17,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:17,019 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 17:41:17,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:41:17,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:41:17,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:17,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:17,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 17:41:17,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:41:17,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365673564] [2022-11-25 17:41:17,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:41:17,239 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 [2022-11-25 17:41:17,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:41:17,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:41:17,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:41:17,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:41:17,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:41:17,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-25 17:41:17,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:41:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:19,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:41:53,080 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~var_191_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_144_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_48_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_37_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_155_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_212_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_203_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_202_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_189_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_222_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_188_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_156_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_145_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_43_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_228_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_18_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_231_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_217_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_21_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_227_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_227_arg_0~0#1_7| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_205_arg_0~0#1_6| (_ BitVec 8))) (= ((_ extract 7 0) (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_0~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_227_arg_0~0#1_6|)))) (.cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_228_arg_0~0#1_5|)))) (.cse10 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_3~0#1|))) (let ((.cse8 ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse15 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_26~0#1|))) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_227_arg_0~0#1_7|)))))) (bvshl ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_188_arg_1~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_33~0#1|))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_144_arg_0~0#1_6|) .cse15))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_145_arg_1~0#1_6|))))))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_189_arg_0~0#1_6|) (_ bv1 32)))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_0~0#1_6|)))))) (_ bv1 32)))))))) (bvshl ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_205_arg_0~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_202_arg_1~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_41~0#1|))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_203_arg_0~0#1_6|) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_155_arg_0~0#1_6|) .cse15))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_156_arg_1~0#1_6|)))))))))))))))))) (_ bv2 32)))))))) (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse14 (_ bv2 32))))))))) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_217_arg_0~0#1_5|) .cse13))) .cse11))) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_212_arg_0~0#1_5|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse14 (_ bv1 32)))))))))) .cse11)))))))))))) (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse13 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_222_arg_0~0#1_5|)))) .cse12))) (_ bv2 32)))))))) (.cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse11))) (bvshl .cse12 (_ bv1 32)))))))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_231_arg_0~0#1_5|) (_ bv2 32))))))) (let ((.cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse9 (_ bv1 32))))) (.cse6 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse8 (_ bv2 32)))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) .cse9))) (.cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse8 (_ bv1 32)))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_43_arg_1~0#1_6|))))))) .cse2))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) .cse8)))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_37_arg_1~0#1_6|))))))) .cse3))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse2))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse3))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse4 .cse3))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_1~0#1_6|)))) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse5 .cse2))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_18_arg_1~0#1_6|))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse5 .cse1))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse4 .cse1))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse6))) .cse7)))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_1~0#1_6|) .cse7)))))) .cse6)))))))))))))))))) (_ bv0 8))) is different from false [2022-11-25 17:42:10,568 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~var_191_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_144_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_48_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_37_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_155_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_212_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_203_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_202_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_189_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_222_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_188_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_156_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_145_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_43_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_228_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_18_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_231_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_217_arg_0~0#1_5| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_21_arg_1~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_227_arg_0~0#1_6| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_227_arg_0~0#1_7| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_205_arg_0~0#1_6| (_ BitVec 8))) (= ((_ extract 7 0) (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_0~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_227_arg_0~0#1_6|)))) (.cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_228_arg_0~0#1_5|)))) (.cse10 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_3~0#1|))) (let ((.cse8 ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse16 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_24~0#1|))) (let ((.cse15 ((_ zero_extend 24) ((_ extract 7 0) .cse16)))) (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_205_arg_0~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_203_arg_0~0#1_6|) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_156_arg_1~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse15 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_155_arg_0~0#1_6|))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse16 (_ bv2 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_202_arg_1~0#1_6|)))))))))))) (_ bv2 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_227_arg_0~0#1_7|)))))) (bvshl ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_189_arg_0~0#1_6|) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_145_arg_1~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_144_arg_0~0#1_6|) .cse15)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse16 (_ bv1 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_188_arg_1~0#1_6|))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_0~0#1_6|)))))) (_ bv1 32))))))))))))))) (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse13 (_ bv2 32))))))))) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse13 (_ bv1 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_212_arg_0~0#1_5|)))) .cse11)))))) (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse14 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_217_arg_0~0#1_5|)))) .cse11))) (_ bv1 32)))))))) (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse14 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_222_arg_0~0#1_5|)))) .cse12))) (_ bv2 32)))))))) (.cse9 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse11))) (bvshl .cse12 (_ bv1 32)))))))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_231_arg_0~0#1_5|) (_ bv2 32))))))) (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse9 (_ bv1 32))))) (.cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse8 (_ bv2 32)))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_1~0#1_6|) .cse2))))))))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse8 (_ bv1 32))))) (.cse3 ((_ zero_extend 24) ((_ extract 7 0) .cse9)))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_43_arg_1~0#1_6|))))))) .cse4))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse7 ((_ zero_extend 24) ((_ extract 7 0) .cse8)))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse1)))))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse4))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse5 .cse3))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse6 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse7))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse3 .cse6))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_1~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse7 .cse5)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_18_arg_1~0#1_6|) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse4 .cse6)))))))))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_37_arg_1~0#1_6|))))))))))))))))))))))))))))))))) (_ bv0 8))) is different from false [2022-11-25 17:42:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-25 17:42:10,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:42:10,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365673564] [2022-11-25 17:42:10,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365673564] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:42:10,629 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:42:10,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-25 17:42:10,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059822364] [2022-11-25 17:42:10,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:42:10,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 17:42:10,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:42:10,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 17:42:10,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=104, Unknown=3, NotChecked=42, Total=182 [2022-11-25 17:42:10,632 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:42:27,069 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 433 DAG size of output: 150 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:42:29,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:42:30,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:42:30,210 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-25 17:42:30,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:42:30,211 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 17:42:30,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:42:30,212 INFO L225 Difference]: With dead ends: 19 [2022-11-25 17:42:30,212 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 17:42:30,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 68.6s TimeCoverageRelationStatistics Valid=98, Invalid=212, Unknown=4, NotChecked=66, Total=380 [2022-11-25 17:42:30,214 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 31 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:42:30,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 38 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 1 Unknown, 13 Unchecked, 2.3s Time] [2022-11-25 17:42:30,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 17:42:30,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 17:42:30,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:42:30,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 17:42:30,224 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-25 17:42:30,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:42:30,224 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 17:42:30,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:42:30,225 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 17:42:30,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:42:30,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:42:30,226 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 17:42:30,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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)] Ended with exit code 0 [2022-11-25 17:42:30,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:42:30,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:42:30,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:42:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-25 17:42:30,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:42:30,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619353612] [2022-11-25 17:42:30,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:42:30,444 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 [2022-11-25 17:42:30,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:42:30,446 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:42:30,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 17:42:31,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-25 17:42:31,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:42:31,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 222 conjunts are in the unsatisfiable core [2022-11-25 17:42:31,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:42:32,348 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:42:32,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:43:08,624 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:43:08,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:43:08,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619353612] [2022-11-25 17:43:08,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619353612] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:43:08,625 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:43:08,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-25 17:43:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676471788] [2022-11-25 17:43:08,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:43:08,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:43:08,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:43:08,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:43:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=101, Unknown=3, NotChecked=0, Total=132 [2022-11-25 17:43:08,628 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:43:12,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:43:27,404 WARN L233 SmtUtils]: Spent 14.17s on a formula simplification. DAG size of input: 429 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:43:45,097 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-25 17:43:45,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-11-25 17:43:45,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:43:45,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 52.4s TimeCoverageRelationStatistics Valid=47, Invalid=132, Unknown=3, NotChecked=0, Total=182 [2022-11-25 17:43:45,101 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:43:45,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 17:43:45,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-25 17:43:45,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:43:45,310 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:620) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:391) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:230) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 57 more [2022-11-25 17:43:45,313 INFO L158 Benchmark]: Toolchain (without parser) took 175663.36ms. Allocated memory was 69.2MB in the beginning and 209.7MB in the end (delta: 140.5MB). Free memory was 38.6MB in the beginning and 168.5MB in the end (delta: -129.8MB). Peak memory consumption was 122.8MB. Max. memory is 16.1GB. [2022-11-25 17:43:45,314 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 69.2MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:43:45,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.95ms. Allocated memory is still 69.2MB. Free memory was 38.4MB in the beginning and 35.8MB in the end (delta: 2.7MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2022-11-25 17:43:45,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 139.09ms. Allocated memory is still 69.2MB. Free memory was 35.8MB in the beginning and 30.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:43:45,315 INFO L158 Benchmark]: Boogie Preprocessor took 120.05ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 30.9MB in the beginning and 66.2MB in the end (delta: -35.3MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-11-25 17:43:45,315 INFO L158 Benchmark]: RCFGBuilder took 1282.37ms. Allocated memory is still 90.2MB. Free memory was 66.2MB in the beginning and 52.1MB in the end (delta: 14.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-11-25 17:43:45,316 INFO L158 Benchmark]: TraceAbstraction took 173504.98ms. Allocated memory was 90.2MB in the beginning and 209.7MB in the end (delta: 119.5MB). Free memory was 51.5MB in the beginning and 168.5MB in the end (delta: -117.0MB). Peak memory consumption was 116.6MB. Max. memory is 16.1GB. [2022-11-25 17:43:45,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 69.2MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.95ms. Allocated memory is still 69.2MB. Free memory was 38.4MB in the beginning and 35.8MB in the end (delta: 2.7MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 139.09ms. Allocated memory is still 69.2MB. Free memory was 35.8MB in the beginning and 30.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 120.05ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 30.9MB in the beginning and 66.2MB in the end (delta: -35.3MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1282.37ms. Allocated memory is still 90.2MB. Free memory was 66.2MB in the beginning and 52.1MB in the end (delta: 14.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * TraceAbstraction took 173504.98ms. Allocated memory was 90.2MB in the beginning and 209.7MB in the end (delta: 119.5MB). Free memory was 51.5MB in the beginning and 168.5MB in the end (delta: -117.0MB). Peak memory consumption was 116.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b12d403-bba1-47e7-9810-9eb0cda97528/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")