./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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_dcbf111c-b49f-4774-8c41-ad34fb34684a/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 2efa62b5c78d9a8e6cb22bbcfab0dad1178c73ba328a91d31f235444a8b17b87 --- 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 17:30:14,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:30:14,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:30:14,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:30:14,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:30:14,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:30:14,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:30:14,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:30:14,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:30:14,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:30:14,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:30:14,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:30:14,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:30:14,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:30:14,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:30:14,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:30:14,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:30:14,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:30:14,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:30:14,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:30:14,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:30:14,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:30:14,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:30:14,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:30:14,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:30:14,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:30:14,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:30:14,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:30:14,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:30:14,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:30:14,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:30:14,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:30:14,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:30:14,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:30:14,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:30:14,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:30:14,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:30:14,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:30:14,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:30:14,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:30:14,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:30:14,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:30:14,768 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:30:14,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:30:14,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:30:14,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:30:14,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:30:14,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:30:14,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:30:14,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:30:14,772 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:30:14,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:30:14,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:30:14,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:30:14,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:30:14,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:30:14,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:30:14,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:30:14,774 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:30:14,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:30:14,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:30:14,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:30:14,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:30:14,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:30:14,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:30:14,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:30:14,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:30:14,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:30:14,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:30:14,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:30:14,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:30:14,776 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:30:14,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:30:14,777 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_dcbf111c-b49f-4774-8c41-ad34fb34684a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2efa62b5c78d9a8e6cb22bbcfab0dad1178c73ba328a91d31f235444a8b17b87 [2022-11-25 17:30:15,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:30:15,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:30:15,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:30:15,134 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:30:15,135 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:30:15,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c [2022-11-25 17:30:18,659 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:30:18,964 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:30:18,973 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c [2022-11-25 17:30:18,996 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/data/a1d445ec3/a61732fb43c44315994a0513d4b519b4/FLAGd1a2a3241 [2022-11-25 17:30:19,017 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/data/a1d445ec3/a61732fb43c44315994a0513d4b519b4 [2022-11-25 17:30:19,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:30:19,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:30:19,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:30:19,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:30:19,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:30:19,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608cad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19, skipping insertion in model container [2022-11-25 17:30:19,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:30:19,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:30:19,244 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_dcbf111c-b49f-4774-8c41-ad34fb34684a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c[1107,1120] [2022-11-25 17:30:19,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:30:19,393 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:30:19,420 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_dcbf111c-b49f-4774-8c41-ad34fb34684a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c[1107,1120] [2022-11-25 17:30:19,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:30:19,569 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:30:19,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19 WrapperNode [2022-11-25 17:30:19,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:30:19,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:30:19,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:30:19,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:30:19,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,695 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 443 [2022-11-25 17:30:19,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:30:19,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:30:19,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:30:19,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:30:19,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,746 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:30:19,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:30:19,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:30:19,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:30:19,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (1/1) ... [2022-11-25 17:30:19,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:30:19,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:19,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:30:19,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:30:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:30:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:30:20,073 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:30:20,076 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:30:22,125 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:30:22,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:30:22,149 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:30:22,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:30:22 BoogieIcfgContainer [2022-11-25 17:30:22,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:30:22,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:30:22,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:30:22,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:30:22,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:30:19" (1/3) ... [2022-11-25 17:30:22,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69485567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:30:22, skipping insertion in model container [2022-11-25 17:30:22,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:19" (2/3) ... [2022-11-25 17:30:22,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69485567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:30:22, skipping insertion in model container [2022-11-25 17:30:22,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:30:22" (3/3) ... [2022-11-25 17:30:22,177 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.client_server.c [2022-11-25 17:30:22,200 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:30:22,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:30:22,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:30:22,292 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;@1918689f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:30:22,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:30:22,298 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 17:30:22,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:30:22,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:22,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:30:22,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:30:22,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:22,327 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:30:22,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:30:22,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231214985] [2022-11-25 17:30:22,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:22,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:30:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:30:23,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:30:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:30:24,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:30:24,309 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:30:24,311 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:30:24,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:30:24,320 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:30:24,326 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:30:24,375 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 17:30:24,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:30:24 BoogieIcfgContainer [2022-11-25 17:30:24,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:30:24,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:30:24,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:30:24,400 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:30:24,401 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:30:22" (3/4) ... [2022-11-25 17:30:24,409 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:30:24,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:30:24,412 INFO L158 Benchmark]: Toolchain (without parser) took 5389.99ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 111.3MB in the beginning and 105.9MB in the end (delta: 5.3MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-11-25 17:30:24,412 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 104.9MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:30:24,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.90ms. Allocated memory is still 155.2MB. Free memory was 111.3MB in the beginning and 90.8MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 17:30:24,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.56ms. Allocated memory is still 155.2MB. Free memory was 90.8MB in the beginning and 85.7MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:30:24,417 INFO L158 Benchmark]: Boogie Preprocessor took 61.04ms. Allocated memory is still 155.2MB. Free memory was 85.7MB in the beginning and 83.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:30:24,424 INFO L158 Benchmark]: RCFGBuilder took 2394.49ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 83.0MB in the beginning and 53.0MB in the end (delta: 30.0MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. [2022-11-25 17:30:24,426 INFO L158 Benchmark]: TraceAbstraction took 2241.44ms. Allocated memory is still 186.6MB. Free memory was 53.0MB in the beginning and 105.9MB in the end (delta: -52.9MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-25 17:30:24,428 INFO L158 Benchmark]: Witness Printer took 10.89ms. Allocated memory is still 186.6MB. Free memory was 105.9MB in the beginning and 105.9MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:30:24,434 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 104.9MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.90ms. Allocated memory is still 155.2MB. Free memory was 111.3MB in the beginning and 90.8MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.56ms. Allocated memory is still 155.2MB. Free memory was 90.8MB in the beginning and 85.7MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.04ms. Allocated memory is still 155.2MB. Free memory was 85.7MB in the beginning and 83.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2394.49ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 83.0MB in the beginning and 53.0MB in the end (delta: 30.0MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2241.44ms. Allocated memory is still 186.6MB. Free memory was 53.0MB in the beginning and 105.9MB in the end (delta: -52.9MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 10.89ms. Allocated memory is still 186.6MB. Free memory was 105.9MB in the beginning and 105.9MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 97, overapproximation of bitwiseAnd at line 95. 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 - 5); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L31] const SORT_1 var_6 = 0; [L32] const SORT_1 var_18 = 1; [L34] SORT_1 input_2; [L35] SORT_3 input_4; [L36] SORT_3 input_5; [L37] SORT_1 input_77; [L38] SORT_3 input_79; [L39] SORT_1 input_89; [L40] SORT_3 input_96; [L42] SORT_1 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L43] SORT_1 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L44] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L45] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_1 init_8_arg_1 = var_6; [L49] state_7 = init_8_arg_1 [L50] SORT_1 init_10_arg_1 = var_6; [L51] state_9 = init_10_arg_1 [L52] SORT_1 init_13_arg_1 = var_6; [L53] state_12 = init_13_arg_1 [L54] SORT_1 init_15_arg_1 = var_6; [L55] state_14 = init_15_arg_1 [L56] SORT_1 init_76_arg_1 = var_18; [L57] state_75 = init_76_arg_1 VAL [init_10_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_76_arg_1=1, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_3=31, msb_SORT_1=1, msb_SORT_3=16, state_12=0, state_14=0, state_7=0, state_75=1, state_9=0, var_18=1, var_6=0] [L60] input_2 = __VERIFIER_nondet_uchar() [L61] input_4 = __VERIFIER_nondet_uchar() [L62] input_5 = __VERIFIER_nondet_uchar() [L63] input_77 = __VERIFIER_nondet_uchar() [L64] input_79 = __VERIFIER_nondet_uchar() [L65] input_89 = __VERIFIER_nondet_uchar() [L66] input_96 = __VERIFIER_nondet_uchar() [L69] SORT_1 var_16_arg_0 = var_6; [L70] SORT_1 var_16_arg_1 = state_14; [L71] SORT_1 var_16_arg_2 = state_12; [L72] SORT_1 var_16 = var_16_arg_0 ? var_16_arg_1 : var_16_arg_2; [L73] SORT_1 var_11_arg_0 = var_6; [L74] SORT_1 var_11_arg_1 = state_9; [L75] SORT_1 var_11_arg_2 = state_7; [L76] SORT_1 var_11 = var_11_arg_0 ? var_11_arg_1 : var_11_arg_2; [L77] SORT_1 var_17_arg_0 = var_6; [L78] SORT_1 var_17_arg_1 = var_16; [L79] SORT_1 var_17_arg_2 = var_11; [L80] SORT_1 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L81] SORT_1 var_20_arg_0 = var_18; [L82] SORT_1 var_20_arg_1 = state_14; [L83] SORT_1 var_20_arg_2 = state_12; [L84] SORT_1 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L85] SORT_1 var_19_arg_0 = var_18; [L86] SORT_1 var_19_arg_1 = state_9; [L87] SORT_1 var_19_arg_2 = state_7; [L88] SORT_1 var_19 = var_19_arg_0 ? var_19_arg_1 : var_19_arg_2; [L89] SORT_1 var_21_arg_0 = var_6; [L90] SORT_1 var_21_arg_1 = var_20; [L91] SORT_1 var_21_arg_2 = var_19; [L92] SORT_1 var_21 = var_21_arg_0 ? var_21_arg_1 : var_21_arg_2; [L93] SORT_1 var_22_arg_0 = var_17; [L94] SORT_1 var_22_arg_1 = var_21; [L95] SORT_1 var_22 = var_22_arg_0 & var_22_arg_1; [L96] SORT_1 var_23_arg_0 = var_22; [L97] SORT_1 var_23 = ~var_23_arg_0; [L98] SORT_1 var_25_arg_0 = var_6; [L99] SORT_1 var_25_arg_1 = state_14; [L100] SORT_1 var_25_arg_2 = state_12; [L101] SORT_1 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L102] SORT_1 var_24_arg_0 = var_6; [L103] SORT_1 var_24_arg_1 = state_9; [L104] SORT_1 var_24_arg_2 = state_7; [L105] SORT_1 var_24 = var_24_arg_0 ? var_24_arg_1 : var_24_arg_2; [L106] SORT_1 var_26_arg_0 = var_6; [L107] SORT_1 var_26_arg_1 = var_25; [L108] SORT_1 var_26_arg_2 = var_24; [L109] SORT_1 var_26 = var_26_arg_0 ? var_26_arg_1 : var_26_arg_2; [L110] SORT_1 var_28_arg_0 = var_6; [L111] SORT_1 var_28_arg_1 = state_14; [L112] SORT_1 var_28_arg_2 = state_12; [L113] SORT_1 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L114] SORT_1 var_27_arg_0 = var_6; [L115] SORT_1 var_27_arg_1 = state_9; [L116] SORT_1 var_27_arg_2 = state_7; [L117] SORT_1 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L118] SORT_1 var_29_arg_0 = var_18; [L119] SORT_1 var_29_arg_1 = var_28; [L120] SORT_1 var_29_arg_2 = var_27; [L121] SORT_1 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; [L122] SORT_1 var_30_arg_0 = var_26; [L123] SORT_1 var_30_arg_1 = var_29; [L124] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L125] SORT_1 var_31_arg_0 = var_30; [L126] SORT_1 var_31 = ~var_31_arg_0; [L127] SORT_1 var_32_arg_0 = var_23; [L128] SORT_1 var_32_arg_1 = var_31; [L129] SORT_1 var_32 = var_32_arg_0 & var_32_arg_1; [L130] SORT_1 var_34_arg_0 = var_6; [L131] SORT_1 var_34_arg_1 = state_14; [L132] SORT_1 var_34_arg_2 = state_12; [L133] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L134] SORT_1 var_33_arg_0 = var_6; [L135] SORT_1 var_33_arg_1 = state_9; [L136] SORT_1 var_33_arg_2 = state_7; [L137] SORT_1 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L138] SORT_1 var_35_arg_0 = var_6; [L139] SORT_1 var_35_arg_1 = var_34; [L140] SORT_1 var_35_arg_2 = var_33; [L141] SORT_1 var_35 = var_35_arg_0 ? var_35_arg_1 : var_35_arg_2; [L142] SORT_1 var_37_arg_0 = var_18; [L143] SORT_1 var_37_arg_1 = state_14; [L144] SORT_1 var_37_arg_2 = state_12; [L145] SORT_1 var_37 = var_37_arg_0 ? var_37_arg_1 : var_37_arg_2; [L146] SORT_1 var_36_arg_0 = var_18; [L147] SORT_1 var_36_arg_1 = state_9; [L148] SORT_1 var_36_arg_2 = state_7; [L149] SORT_1 var_36 = var_36_arg_0 ? var_36_arg_1 : var_36_arg_2; [L150] SORT_1 var_38_arg_0 = var_18; [L151] SORT_1 var_38_arg_1 = var_37; [L152] SORT_1 var_38_arg_2 = var_36; [L153] SORT_1 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L154] SORT_1 var_39_arg_0 = var_35; [L155] SORT_1 var_39_arg_1 = var_38; [L156] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L157] SORT_1 var_40_arg_0 = var_39; [L158] SORT_1 var_40 = ~var_40_arg_0; [L159] SORT_1 var_41_arg_0 = var_32; [L160] SORT_1 var_41_arg_1 = var_40; [L161] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L162] SORT_1 var_43_arg_0 = var_18; [L163] SORT_1 var_43_arg_1 = state_14; [L164] SORT_1 var_43_arg_2 = state_12; [L165] SORT_1 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L166] SORT_1 var_42_arg_0 = var_18; [L167] SORT_1 var_42_arg_1 = state_9; [L168] SORT_1 var_42_arg_2 = state_7; [L169] SORT_1 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L170] SORT_1 var_44_arg_0 = var_6; [L171] SORT_1 var_44_arg_1 = var_43; [L172] SORT_1 var_44_arg_2 = var_42; [L173] SORT_1 var_44 = var_44_arg_0 ? var_44_arg_1 : var_44_arg_2; [L174] SORT_1 var_46_arg_0 = var_6; [L175] SORT_1 var_46_arg_1 = state_14; [L176] SORT_1 var_46_arg_2 = state_12; [L177] SORT_1 var_46 = var_46_arg_0 ? var_46_arg_1 : var_46_arg_2; [L178] SORT_1 var_45_arg_0 = var_6; [L179] SORT_1 var_45_arg_1 = state_9; [L180] SORT_1 var_45_arg_2 = state_7; [L181] SORT_1 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L182] SORT_1 var_47_arg_0 = var_18; [L183] SORT_1 var_47_arg_1 = var_46; [L184] SORT_1 var_47_arg_2 = var_45; [L185] SORT_1 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L186] SORT_1 var_48_arg_0 = var_44; [L187] SORT_1 var_48_arg_1 = var_47; [L188] SORT_1 var_48 = var_48_arg_0 & var_48_arg_1; [L189] SORT_1 var_49_arg_0 = var_48; [L190] SORT_1 var_49 = ~var_49_arg_0; [L191] SORT_1 var_50_arg_0 = var_41; [L192] SORT_1 var_50_arg_1 = var_49; [L193] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L194] SORT_1 var_52_arg_0 = var_18; [L195] SORT_1 var_52_arg_1 = state_14; [L196] SORT_1 var_52_arg_2 = state_12; [L197] SORT_1 var_52 = var_52_arg_0 ? var_52_arg_1 : var_52_arg_2; [L198] SORT_1 var_51_arg_0 = var_18; [L199] SORT_1 var_51_arg_1 = state_9; [L200] SORT_1 var_51_arg_2 = state_7; [L201] SORT_1 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L202] SORT_1 var_53_arg_0 = var_6; [L203] SORT_1 var_53_arg_1 = var_52; [L204] SORT_1 var_53_arg_2 = var_51; [L205] SORT_1 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L206] SORT_1 var_55_arg_0 = var_18; [L207] SORT_1 var_55_arg_1 = state_14; [L208] SORT_1 var_55_arg_2 = state_12; [L209] SORT_1 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L210] SORT_1 var_54_arg_0 = var_18; [L211] SORT_1 var_54_arg_1 = state_9; [L212] SORT_1 var_54_arg_2 = state_7; [L213] SORT_1 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L214] SORT_1 var_56_arg_0 = var_18; [L215] SORT_1 var_56_arg_1 = var_55; [L216] SORT_1 var_56_arg_2 = var_54; [L217] SORT_1 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L218] SORT_1 var_57_arg_0 = var_53; [L219] SORT_1 var_57_arg_1 = var_56; [L220] SORT_1 var_57 = var_57_arg_0 & var_57_arg_1; [L221] SORT_1 var_58_arg_0 = var_57; [L222] SORT_1 var_58 = ~var_58_arg_0; [L223] SORT_1 var_59_arg_0 = var_50; [L224] SORT_1 var_59_arg_1 = var_58; [L225] SORT_1 var_59 = var_59_arg_0 & var_59_arg_1; [L226] SORT_1 var_61_arg_0 = var_6; [L227] SORT_1 var_61_arg_1 = state_14; [L228] SORT_1 var_61_arg_2 = state_12; [L229] SORT_1 var_61 = var_61_arg_0 ? var_61_arg_1 : var_61_arg_2; [L230] SORT_1 var_60_arg_0 = var_6; [L231] SORT_1 var_60_arg_1 = state_9; [L232] SORT_1 var_60_arg_2 = state_7; [L233] SORT_1 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; [L234] SORT_1 var_62_arg_0 = var_18; [L235] SORT_1 var_62_arg_1 = var_61; [L236] SORT_1 var_62_arg_2 = var_60; [L237] SORT_1 var_62 = var_62_arg_0 ? var_62_arg_1 : var_62_arg_2; [L238] SORT_1 var_64_arg_0 = var_18; [L239] SORT_1 var_64_arg_1 = state_14; [L240] SORT_1 var_64_arg_2 = state_12; [L241] SORT_1 var_64 = var_64_arg_0 ? var_64_arg_1 : var_64_arg_2; [L242] SORT_1 var_63_arg_0 = var_18; [L243] SORT_1 var_63_arg_1 = state_9; [L244] SORT_1 var_63_arg_2 = state_7; [L245] SORT_1 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; [L246] SORT_1 var_65_arg_0 = var_18; [L247] SORT_1 var_65_arg_1 = var_64; [L248] SORT_1 var_65_arg_2 = var_63; [L249] SORT_1 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L250] SORT_1 var_66_arg_0 = var_62; [L251] SORT_1 var_66_arg_1 = var_65; [L252] SORT_1 var_66 = var_66_arg_0 & var_66_arg_1; [L253] SORT_1 var_67_arg_0 = var_66; [L254] SORT_1 var_67 = ~var_67_arg_0; [L255] SORT_1 var_68_arg_0 = var_59; [L256] SORT_1 var_68_arg_1 = var_67; [L257] SORT_1 var_68 = var_68_arg_0 & var_68_arg_1; [L258] SORT_1 var_71_arg_0 = var_68; [L259] SORT_1 var_71 = ~var_71_arg_0; [L260] SORT_1 var_72_arg_0 = var_18; [L261] SORT_1 var_72_arg_1 = var_71; [L262] SORT_1 var_72 = var_72_arg_0 & var_72_arg_1; [L263] var_72 = var_72 & mask_SORT_1 [L264] SORT_1 bad_73_arg_0 = var_72; [L265] CALL __VERIFIER_assert(!(bad_73_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: 2.1s, 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, 1.0s 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 17:30:24,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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_dcbf111c-b49f-4774-8c41-ad34fb34684a/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 2efa62b5c78d9a8e6cb22bbcfab0dad1178c73ba328a91d31f235444a8b17b87 --- 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 17:30:27,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:30:27,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:30:27,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:30:27,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:30:27,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:30:27,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:30:27,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:30:27,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:30:27,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:30:27,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:30:27,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:30:27,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:30:27,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:30:27,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:30:27,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:30:27,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:30:27,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:30:27,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:30:27,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:30:27,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:30:27,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:30:27,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:30:27,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:30:27,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:30:27,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:30:27,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:30:27,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:30:27,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:30:27,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:30:27,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:30:27,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:30:27,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:30:27,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:30:27,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:30:27,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:30:27,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:30:27,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:30:27,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:30:27,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:30:27,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:30:27,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 17:30:27,537 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:30:27,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:30:27,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:30:27,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:30:27,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:30:27,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:30:27,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:30:27,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:30:27,543 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:30:27,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:30:27,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:30:27,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:30:27,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:30:27,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:30:27,546 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:30:27,547 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:30:27,547 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:30:27,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:30:27,547 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:30:27,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:30:27,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:30:27,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:30:27,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:30:27,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:30:27,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:30:27,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:30:27,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:30:27,550 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:30:27,551 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:30:27,551 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:30:27,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:30:27,551 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:30:27,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:30:27,552 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:30:27,552 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_dcbf111c-b49f-4774-8c41-ad34fb34684a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2efa62b5c78d9a8e6cb22bbcfab0dad1178c73ba328a91d31f235444a8b17b87 [2022-11-25 17:30:28,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:30:28,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:30:28,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:30:28,107 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:30:28,107 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:30:28,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c [2022-11-25 17:30:32,162 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:30:32,531 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:30:32,532 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c [2022-11-25 17:30:32,547 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/data/33576b9c9/c7595ff405a1489882e62bf7e557c9c2/FLAG343966a5a [2022-11-25 17:30:32,560 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/data/33576b9c9/c7595ff405a1489882e62bf7e557c9c2 [2022-11-25 17:30:32,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:30:32,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:30:32,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:30:32,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:30:32,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:30:32,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:30:32" (1/1) ... [2022-11-25 17:30:32,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ca027c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:32, skipping insertion in model container [2022-11-25 17:30:32,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:30:32" (1/1) ... [2022-11-25 17:30:32,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:30:32,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:30:32,789 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_dcbf111c-b49f-4774-8c41-ad34fb34684a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c[1107,1120] [2022-11-25 17:30:32,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:30:32,934 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:30:32,947 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_dcbf111c-b49f-4774-8c41-ad34fb34684a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c[1107,1120] [2022-11-25 17:30:33,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:30:33,041 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:30:33,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33 WrapperNode [2022-11-25 17:30:33,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:30:33,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:30:33,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:30:33,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:30:33,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,138 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 443 [2022-11-25 17:30:33,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:30:33,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:30:33,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:30:33,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:30:33,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,183 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:30:33,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:30:33,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:30:33,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:30:33,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (1/1) ... [2022-11-25 17:30:33,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:30:33,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:30:33,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:30:33,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:30:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:30:33,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:30:33,582 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:30:33,597 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:30:34,344 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:30:34,352 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:30:34,352 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:30:34,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:30:34 BoogieIcfgContainer [2022-11-25 17:30:34,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:30:34,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:30:34,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:30:34,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:30:34,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:30:32" (1/3) ... [2022-11-25 17:30:34,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3dcb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:30:34, skipping insertion in model container [2022-11-25 17:30:34,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:30:33" (2/3) ... [2022-11-25 17:30:34,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3dcb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:30:34, skipping insertion in model container [2022-11-25 17:30:34,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:30:34" (3/3) ... [2022-11-25 17:30:34,365 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.client_server.c [2022-11-25 17:30:34,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:30:34,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:30:34,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:30:34,463 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;@109a6752, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:30:34,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:30:34,469 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 17:30:34,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:30:34,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:34,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:30:34,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:30:34,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:30:34,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:30:34,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063191721] [2022-11-25 17:30:34,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:34,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:30:34,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:30:34,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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 17:30:34,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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 17:30:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:34,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 92 conjunts are in the unsatisfiable core [2022-11-25 17:30:34,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:30:35,955 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 17:30:35,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:30:35,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:30:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063191721] [2022-11-25 17:30:35,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063191721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:30:35,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:30:35,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:30:35,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735426437] [2022-11-25 17:30:35,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:30:35,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:30:35,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:30:36,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:30:36,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:30:36,043 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 17:30:36,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:30:36,188 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 17:30:36,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:30:36,193 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 17:30:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:30:36,207 INFO L225 Difference]: With dead ends: 20 [2022-11-25 17:30:36,208 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 17:30:36,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:30:36,216 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 17:30:36,218 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 17:30:36,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 17:30:36,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 17:30:36,262 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 17:30:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 17:30:36,265 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 17:30:36,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:30:36,267 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 17:30:36,267 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 17:30:36,268 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 17:30:36,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:30:36,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:30:36,269 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:30:36,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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 17:30:36,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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 17:30:36,484 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:30:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:30:36,486 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 17:30:36,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:30:36,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901545897] [2022-11-25 17:30:36,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:30:36,491 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 17:30:36,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:30:36,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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 17:30:36,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbf111c-b49f-4774-8c41-ad34fb34684a/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 17:30:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:30:36,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 219 conjunts are in the unsatisfiable core [2022-11-25 17:30:36,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:31:38,365 WARN L233 SmtUtils]: Spent 45.83s on a formula simplification. DAG size of input: 428 DAG size of output: 31 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:31:39,358 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 17:31:39,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:32:01,901 WARN L233 SmtUtils]: Spent 18.53s on a formula simplification. DAG size of input: 360 DAG size of output: 359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)