./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 219260ea480bf5febe53042a46b4334f74f581e820f56e05a80e0503229ceb75 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:31:23,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:31:23,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:31:23,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:31:23,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:31:23,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:31:23,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:31:23,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:31:23,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:31:23,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:31:23,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:31:23,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:31:23,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:31:23,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:31:23,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:31:23,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:31:23,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:31:23,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:31:23,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:31:23,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:31:23,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:31:23,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:31:23,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:31:23,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:31:23,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:31:23,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:31:23,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:31:23,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:31:23,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:31:23,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:31:23,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:31:23,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:31:23,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:31:23,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:31:23,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:31:23,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:31:23,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:31:23,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:31:23,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:31:23,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:31:23,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:31:23,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:31:23,176 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:31:23,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:31:23,177 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:31:23,177 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:31:23,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:31:23,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:31:23,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:31:23,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:31:23,179 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:31:23,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:31:23,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:31:23,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:31:23,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:31:23,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:31:23,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:31:23,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:31:23,181 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:31:23,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:31:23,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:31:23,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:31:23,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:31:23,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:31:23,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:31:23,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:31:23,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:31:23,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:31:23,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:31:23,184 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:31:23,185 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:31:23,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:31:23,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 219260ea480bf5febe53042a46b4334f74f581e820f56e05a80e0503229ceb75 [2022-11-20 09:31:23,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:31:23,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:31:23,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:31:23,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:31:23,470 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:31:23,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2022-11-20 09:31:26,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:31:26,939 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:31:26,939 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2022-11-20 09:31:26,955 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/data/7707b989a/1b28f3311c774806bea61a4e16832ba0/FLAG032fbb333 [2022-11-20 09:31:26,972 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/data/7707b989a/1b28f3311c774806bea61a4e16832ba0 [2022-11-20 09:31:26,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:31:26,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:31:26,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:26,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:31:26,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:31:26,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b79c1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:26, skipping insertion in model container [2022-11-20 09:31:26,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:26" (1/1) ... [2022-11-20 09:31:26,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:31:27,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:31:27,264 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_694b39b8-330a-4607-a78d-9b59f625f6de/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c[1107,1120] [2022-11-20 09:31:27,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:27,714 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:31:27,726 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_694b39b8-330a-4607-a78d-9b59f625f6de/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c[1107,1120] [2022-11-20 09:31:28,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:28,023 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:31:28,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28 WrapperNode [2022-11-20 09:31:28,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:28,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:28,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:31:28,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:31:28,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,244 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2513 [2022-11-20 09:31:28,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:28,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:31:28,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:31:28,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:31:28,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,368 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:31:28,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:31:28,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:31:28,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:31:28,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (1/1) ... [2022-11-20 09:31:28,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:31:28,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:28,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:28,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:31:28,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:31:28,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:31:29,057 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:31:29,059 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:33:38,402 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:33:38,408 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:33:38,408 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:33:38,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:38 BoogieIcfgContainer [2022-11-20 09:33:38,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:33:38,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:33:38,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:33:38,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:33:38,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:31:26" (1/3) ... [2022-11-20 09:33:38,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1203b27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:38, skipping insertion in model container [2022-11-20 09:33:38,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:28" (2/3) ... [2022-11-20 09:33:38,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1203b27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:38, skipping insertion in model container [2022-11-20 09:33:38,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:38" (3/3) ... [2022-11-20 09:33:38,419 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2022-11-20 09:33:38,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:33:38,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:33:38,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:33:38,490 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;@35981c66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:33:38,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:33:38,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:38,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 09:33:38,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:38,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 09:33:38,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:38,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:38,505 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 09:33:38,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:33:38,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420418681] [2022-11-20 09:33:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:38,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:33:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:33:39,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:33:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:33:39,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:33:39,778 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:33:39,779 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 09:33:39,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:33:39,786 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 09:33:39,790 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:33:39,841 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 09:33:39,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:33:39 BoogieIcfgContainer [2022-11-20 09:33:39,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:33:39,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:33:39,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:33:39,873 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:33:39,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:38" (3/4) ... [2022-11-20 09:33:39,880 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:33:39,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:33:39,882 INFO L158 Benchmark]: Toolchain (without parser) took 132905.43ms. Allocated memory was 163.6MB in the beginning and 1.1GB in the end (delta: 954.2MB). Free memory was 127.3MB in the beginning and 534.5MB in the end (delta: -407.2MB). Peak memory consumption was 548.1MB. Max. memory is 16.1GB. [2022-11-20 09:33:39,882 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 163.6MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:33:39,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1046.92ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 127.3MB in the beginning and 160.6MB in the end (delta: -33.3MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. [2022-11-20 09:33:39,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 219.89ms. Allocated memory is still 205.5MB. Free memory was 160.6MB in the beginning and 143.1MB in the end (delta: 17.5MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2022-11-20 09:33:39,889 INFO L158 Benchmark]: Boogie Preprocessor took 177.68ms. Allocated memory is still 205.5MB. Free memory was 143.1MB in the beginning and 131.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:33:39,891 INFO L158 Benchmark]: RCFGBuilder took 129986.76ms. Allocated memory was 205.5MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 131.8MB in the beginning and 673.9MB in the end (delta: -542.1MB). Peak memory consumption was 663.3MB. Max. memory is 16.1GB. [2022-11-20 09:33:39,892 INFO L158 Benchmark]: TraceAbstraction took 1457.88ms. Allocated memory is still 1.1GB. Free memory was 673.9MB in the beginning and 535.5MB in the end (delta: 138.4MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. [2022-11-20 09:33:39,892 INFO L158 Benchmark]: Witness Printer took 7.92ms. Allocated memory is still 1.1GB. Free memory was 535.5MB in the beginning and 534.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:33:39,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 163.6MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1046.92ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 127.3MB in the beginning and 160.6MB in the end (delta: -33.3MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 219.89ms. Allocated memory is still 205.5MB. Free memory was 160.6MB in the beginning and 143.1MB in the end (delta: 17.5MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 177.68ms. Allocated memory is still 205.5MB. Free memory was 143.1MB in the beginning and 131.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 129986.76ms. Allocated memory was 205.5MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 131.8MB in the beginning and 673.9MB in the end (delta: -542.1MB). Peak memory consumption was 663.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1457.88ms. Allocated memory is still 1.1GB. Free memory was 673.9MB in the beginning and 535.5MB in the end (delta: 138.4MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. * Witness Printer took 7.92ms. Allocated memory is still 1.1GB. Free memory was 535.5MB in the beginning and 534.5MB 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 405, overapproximation of bitwiseOr at line 343, overapproximation of bitwiseAnd at line 243. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 3); [L32] const SORT_6 msb_SORT_6 = (SORT_6)1 << (3 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 4); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (4 - 1); [L37] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 8); [L38] const SORT_16 msb_SORT_16 = (SORT_16)1 << (8 - 1); [L40] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 7); [L41] const SORT_21 msb_SORT_21 = (SORT_21)1 << (7 - 1); [L43] const SORT_21 var_22 = 1; [L44] const SORT_21 var_26 = 2; [L45] const SORT_21 var_29 = 4; [L46] const SORT_21 var_33 = 8; [L47] const SORT_21 var_37 = 0; [L48] const SORT_21 var_46 = 16; [L49] const SORT_21 var_49 = 32; [L50] const SORT_21 var_52 = 64; [L51] const SORT_3 var_57 = 1; [L52] const SORT_3 var_61 = 0; [L53] const SORT_6 var_146 = 0; [L55] SORT_1 input_2; [L56] SORT_3 input_4; [L57] SORT_3 input_5; [L58] SORT_6 input_7; [L59] SORT_3 input_8; [L60] SORT_3 input_9; [L61] SORT_3 input_10; [L62] SORT_3 input_11; [L63] SORT_12 input_13; [L64] SORT_3 input_14; [L65] SORT_3 input_15; [L66] SORT_16 input_17; [L67] SORT_3 input_18; [L68] SORT_3 input_19; [L69] SORT_3 input_20; [L70] SORT_3 input_368; [L71] SORT_3 input_390; [L72] SORT_3 input_405; [L73] SORT_3 input_420; [L74] SORT_3 input_435; [L75] SORT_3 input_450; [L76] SORT_3 input_465; [L77] SORT_3 input_480; [L78] SORT_3 input_495; [L79] SORT_3 input_510; [L80] SORT_3 input_525; [L81] SORT_3 input_540; [L82] SORT_3 input_555; [L83] SORT_3 input_570; [L84] SORT_3 input_585; [L85] SORT_3 input_600; [L86] SORT_3 input_616; [L87] SORT_3 input_618; [L88] SORT_3 input_620; [L89] SORT_3 input_622; [L90] SORT_3 input_624; [L91] SORT_3 input_626; [L92] SORT_3 input_628; [L93] SORT_3 input_630; [L94] SORT_3 input_635; [L95] SORT_21 input_676; [L96] SORT_21 input_677; [L97] SORT_21 input_678; [L98] SORT_21 input_679; [L99] SORT_21 input_682; [L100] SORT_21 input_686; [L101] SORT_21 input_690; [L102] SORT_21 input_698; [L103] SORT_21 input_702; [L104] SORT_21 input_704; [L105] SORT_21 input_708; [L106] SORT_21 input_711; [L107] SORT_21 input_715; [L108] SORT_21 input_720; [L109] SORT_21 input_724; [L110] SORT_21 input_729; [L111] SORT_21 input_731; [L112] SORT_21 input_732; [L113] SORT_21 input_734; [L114] SORT_21 input_738; [L115] SORT_21 input_743; [L116] SORT_21 input_750; [L117] SORT_21 input_751; [L118] SORT_21 input_753; [L119] SORT_21 input_757; [L120] SORT_21 input_762; [L121] SORT_21 input_764; [L122] SORT_21 input_765; [L123] SORT_21 input_767; [L124] SORT_21 input_771; [L125] SORT_21 input_776; [L126] SORT_21 input_780; [L127] SORT_21 input_785; [L128] SORT_21 input_787; [L129] SORT_21 input_793; [L130] SORT_21 input_805; [L131] SORT_3 input_810; [L132] SORT_3 input_819; [L133] SORT_3 input_838; [L134] SORT_3 input_845; [L135] SORT_3 input_856; [L136] SORT_3 input_862; [L137] SORT_3 input_868; [L138] SORT_3 input_874; [L139] SORT_3 input_880; [L140] SORT_3 input_886; [L141] SORT_3 input_892; [L142] SORT_3 input_898; [L143] SORT_3 input_904; [L144] SORT_3 input_910; [L145] SORT_3 input_916; [L146] SORT_3 input_922; [L147] SORT_3 input_928; [L149] SORT_21 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L150] SORT_21 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L151] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L152] SORT_3 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L153] SORT_3 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L154] SORT_3 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L155] SORT_3 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L156] SORT_3 state_78 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L157] SORT_3 state_94 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L158] SORT_3 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L159] SORT_3 state_114 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L160] SORT_3 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L161] SORT_3 state_120 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L162] SORT_3 state_124 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L163] SORT_3 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L164] SORT_3 state_132 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L165] SORT_3 state_142 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L166] SORT_3 state_149 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L167] SORT_3 state_152 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L168] SORT_3 state_161 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L169] SORT_3 state_166 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L170] SORT_3 state_169 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L171] SORT_3 state_181 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L172] SORT_3 state_191 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L173] SORT_3 state_196 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L174] SORT_3 state_199 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L175] SORT_3 state_208 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L176] SORT_3 state_221 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L177] SORT_3 state_234 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L179] SORT_21 init_24_arg_1 = var_22; [L180] state_23 = init_24_arg_1 [L181] SORT_21 init_32_arg_1 = var_22; [L182] state_31 = init_32_arg_1 [L183] SORT_3 init_63_arg_1 = var_61; [L184] state_62 = init_63_arg_1 [L185] SORT_3 init_65_arg_1 = var_61; [L186] state_64 = init_65_arg_1 [L187] SORT_3 init_67_arg_1 = var_61; [L188] state_66 = init_67_arg_1 [L189] SORT_3 init_71_arg_1 = var_61; [L190] state_70 = init_71_arg_1 [L191] SORT_3 init_75_arg_1 = var_61; [L192] state_74 = init_75_arg_1 [L193] SORT_3 init_79_arg_1 = var_61; [L194] state_78 = init_79_arg_1 [L195] SORT_3 init_95_arg_1 = var_61; [L196] state_94 = init_95_arg_1 [L197] SORT_3 init_112_arg_1 = var_61; [L198] state_111 = init_112_arg_1 [L199] SORT_3 init_115_arg_1 = var_61; [L200] state_114 = init_115_arg_1 [L201] SORT_3 init_117_arg_1 = var_61; [L202] state_116 = init_117_arg_1 [L203] SORT_3 init_121_arg_1 = var_61; [L204] state_120 = init_121_arg_1 [L205] SORT_3 init_125_arg_1 = var_61; [L206] state_124 = init_125_arg_1 [L207] SORT_3 init_130_arg_1 = var_61; [L208] state_129 = init_130_arg_1 [L209] SORT_3 init_133_arg_1 = var_61; [L210] state_132 = init_133_arg_1 [L211] SORT_3 init_143_arg_1 = var_61; [L212] state_142 = init_143_arg_1 [L213] SORT_3 init_150_arg_1 = var_61; [L214] state_149 = init_150_arg_1 [L215] SORT_3 init_153_arg_1 = var_61; [L216] state_152 = init_153_arg_1 [L217] SORT_3 init_162_arg_1 = var_61; [L218] state_161 = init_162_arg_1 [L219] SORT_3 init_167_arg_1 = var_61; [L220] state_166 = init_167_arg_1 [L221] SORT_3 init_170_arg_1 = var_61; [L222] state_169 = init_170_arg_1 [L223] SORT_3 init_182_arg_1 = var_61; [L224] state_181 = init_182_arg_1 [L225] SORT_3 init_192_arg_1 = var_61; [L226] state_191 = init_192_arg_1 [L227] SORT_3 init_197_arg_1 = var_61; [L228] state_196 = init_197_arg_1 [L229] SORT_3 init_200_arg_1 = var_61; [L230] state_199 = init_200_arg_1 [L231] SORT_3 init_209_arg_1 = var_61; [L232] state_208 = init_209_arg_1 [L233] SORT_3 init_222_arg_1 = var_61; [L234] state_221 = init_222_arg_1 [L235] SORT_3 init_235_arg_1 = var_61; [L236] state_234 = init_235_arg_1 VAL [init_112_arg_1=0, init_115_arg_1=0, init_117_arg_1=0, init_121_arg_1=0, init_125_arg_1=0, init_130_arg_1=0, init_133_arg_1=0, init_143_arg_1=0, init_150_arg_1=0, init_153_arg_1=0, init_162_arg_1=0, init_167_arg_1=0, init_170_arg_1=0, init_182_arg_1=0, init_192_arg_1=0, init_197_arg_1=0, init_200_arg_1=0, init_209_arg_1=0, init_222_arg_1=0, init_235_arg_1=0, init_24_arg_1=1, init_32_arg_1=1, init_63_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_71_arg_1=0, init_75_arg_1=0, init_79_arg_1=0, init_95_arg_1=0, mask_SORT_1=3, mask_SORT_12=15, mask_SORT_16=255, mask_SORT_21=127, mask_SORT_3=1, mask_SORT_6=7, msb_SORT_1=2, msb_SORT_12=8, msb_SORT_16=128, msb_SORT_21=64, msb_SORT_3=1, msb_SORT_6=4, state_111=0, state_114=0, state_116=0, state_120=0, state_124=0, state_129=0, state_132=0, state_142=0, state_149=0, state_152=0, state_161=0, state_166=0, state_169=0, state_181=0, state_191=0, state_196=0, state_199=0, state_208=0, state_221=0, state_23=1, state_234=0, state_31=1, state_62=0, state_64=0, state_66=0, state_70=0, state_74=0, state_78=0, state_94=0, var_146=0, var_22=1, var_26=2, var_29=4, var_33=8, var_37=0, var_46=16, var_49=32, var_52=64, var_57=1, var_61=0] [L239] input_2 = __VERIFIER_nondet_uchar() [L240] input_4 = __VERIFIER_nondet_uchar() [L241] input_5 = __VERIFIER_nondet_uchar() [L242] input_7 = __VERIFIER_nondet_uchar() [L243] input_7 = input_7 & mask_SORT_6 [L244] input_8 = __VERIFIER_nondet_uchar() [L245] input_9 = __VERIFIER_nondet_uchar() [L246] input_10 = __VERIFIER_nondet_uchar() [L247] input_11 = __VERIFIER_nondet_uchar() [L248] input_13 = __VERIFIER_nondet_uchar() [L249] input_14 = __VERIFIER_nondet_uchar() [L250] input_15 = __VERIFIER_nondet_uchar() [L251] input_17 = __VERIFIER_nondet_uchar() [L252] input_18 = __VERIFIER_nondet_uchar() [L253] input_19 = __VERIFIER_nondet_uchar() [L254] input_20 = __VERIFIER_nondet_uchar() [L255] input_368 = __VERIFIER_nondet_uchar() [L256] input_390 = __VERIFIER_nondet_uchar() [L257] input_405 = __VERIFIER_nondet_uchar() [L258] input_420 = __VERIFIER_nondet_uchar() [L259] input_435 = __VERIFIER_nondet_uchar() [L260] input_450 = __VERIFIER_nondet_uchar() [L261] input_465 = __VERIFIER_nondet_uchar() [L262] input_480 = __VERIFIER_nondet_uchar() [L263] input_495 = __VERIFIER_nondet_uchar() [L264] input_510 = __VERIFIER_nondet_uchar() [L265] input_525 = __VERIFIER_nondet_uchar() [L266] input_540 = __VERIFIER_nondet_uchar() [L267] input_555 = __VERIFIER_nondet_uchar() [L268] input_570 = __VERIFIER_nondet_uchar() [L269] input_585 = __VERIFIER_nondet_uchar() [L270] input_600 = __VERIFIER_nondet_uchar() [L271] input_616 = __VERIFIER_nondet_uchar() [L272] input_618 = __VERIFIER_nondet_uchar() [L273] input_620 = __VERIFIER_nondet_uchar() [L274] input_622 = __VERIFIER_nondet_uchar() [L275] input_624 = __VERIFIER_nondet_uchar() [L276] input_626 = __VERIFIER_nondet_uchar() [L277] input_628 = __VERIFIER_nondet_uchar() [L278] input_630 = __VERIFIER_nondet_uchar() [L279] input_635 = __VERIFIER_nondet_uchar() [L280] input_676 = __VERIFIER_nondet_uchar() [L281] input_677 = __VERIFIER_nondet_uchar() [L282] input_678 = __VERIFIER_nondet_uchar() [L283] input_679 = __VERIFIER_nondet_uchar() [L284] input_682 = __VERIFIER_nondet_uchar() [L285] input_686 = __VERIFIER_nondet_uchar() [L286] input_690 = __VERIFIER_nondet_uchar() [L287] input_698 = __VERIFIER_nondet_uchar() [L288] input_702 = __VERIFIER_nondet_uchar() [L289] input_704 = __VERIFIER_nondet_uchar() [L290] input_708 = __VERIFIER_nondet_uchar() [L291] input_711 = __VERIFIER_nondet_uchar() [L292] input_715 = __VERIFIER_nondet_uchar() [L293] input_720 = __VERIFIER_nondet_uchar() [L294] input_724 = __VERIFIER_nondet_uchar() [L295] input_729 = __VERIFIER_nondet_uchar() [L296] input_731 = __VERIFIER_nondet_uchar() [L297] input_732 = __VERIFIER_nondet_uchar() [L298] input_734 = __VERIFIER_nondet_uchar() [L299] input_738 = __VERIFIER_nondet_uchar() [L300] input_743 = __VERIFIER_nondet_uchar() [L301] input_750 = __VERIFIER_nondet_uchar() [L302] input_751 = __VERIFIER_nondet_uchar() [L303] input_753 = __VERIFIER_nondet_uchar() [L304] input_757 = __VERIFIER_nondet_uchar() [L305] input_762 = __VERIFIER_nondet_uchar() [L306] input_764 = __VERIFIER_nondet_uchar() [L307] input_765 = __VERIFIER_nondet_uchar() [L308] input_767 = __VERIFIER_nondet_uchar() [L309] input_771 = __VERIFIER_nondet_uchar() [L310] input_776 = __VERIFIER_nondet_uchar() [L311] input_780 = __VERIFIER_nondet_uchar() [L312] input_785 = __VERIFIER_nondet_uchar() [L313] input_787 = __VERIFIER_nondet_uchar() [L314] input_793 = __VERIFIER_nondet_uchar() [L315] input_805 = __VERIFIER_nondet_uchar() [L316] input_810 = __VERIFIER_nondet_uchar() [L317] input_819 = __VERIFIER_nondet_uchar() [L318] input_838 = __VERIFIER_nondet_uchar() [L319] input_845 = __VERIFIER_nondet_uchar() [L320] input_856 = __VERIFIER_nondet_uchar() [L321] input_862 = __VERIFIER_nondet_uchar() [L322] input_868 = __VERIFIER_nondet_uchar() [L323] input_874 = __VERIFIER_nondet_uchar() [L324] input_880 = __VERIFIER_nondet_uchar() [L325] input_886 = __VERIFIER_nondet_uchar() [L326] input_892 = __VERIFIER_nondet_uchar() [L327] input_898 = __VERIFIER_nondet_uchar() [L328] input_904 = __VERIFIER_nondet_uchar() [L329] input_910 = __VERIFIER_nondet_uchar() [L330] input_916 = __VERIFIER_nondet_uchar() [L331] input_922 = __VERIFIER_nondet_uchar() [L332] input_928 = __VERIFIER_nondet_uchar() [L335] SORT_21 var_25_arg_0 = state_23; [L336] SORT_21 var_25_arg_1 = var_22; [L337] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L338] SORT_21 var_27_arg_0 = state_23; [L339] SORT_21 var_27_arg_1 = var_26; [L340] SORT_3 var_27 = var_27_arg_0 == var_27_arg_1; [L341] SORT_3 var_28_arg_0 = var_25; [L342] SORT_3 var_28_arg_1 = var_27; [L343] SORT_3 var_28 = var_28_arg_0 | var_28_arg_1; [L344] SORT_21 var_30_arg_0 = state_23; [L345] SORT_21 var_30_arg_1 = var_29; [L346] SORT_3 var_30 = var_30_arg_0 == var_30_arg_1; [L347] SORT_21 var_34_arg_0 = state_31; [L348] SORT_21 var_34_arg_1 = var_33; [L349] SORT_3 var_34 = var_34_arg_0 == var_34_arg_1; [L350] SORT_21 var_35_arg_0 = state_31; [L351] SORT_21 var_35_arg_1 = var_22; [L352] SORT_3 var_35 = var_35_arg_0 == var_35_arg_1; [L353] SORT_3 var_36_arg_0 = var_34; [L354] SORT_3 var_36_arg_1 = var_35; [L355] SORT_3 var_36 = var_36_arg_0 | var_36_arg_1; [L356] SORT_21 var_38_arg_0 = state_31; [L357] SORT_21 var_38_arg_1 = var_37; [L358] SORT_3 var_38 = var_38_arg_0 == var_38_arg_1; [L359] SORT_3 var_39_arg_0 = var_36; [L360] SORT_3 var_39_arg_1 = var_38; [L361] SORT_3 var_39 = var_39_arg_0 | var_39_arg_1; [L362] SORT_21 var_40_arg_0 = state_31; [L363] SORT_21 var_40_arg_1 = var_29; [L364] SORT_3 var_40 = var_40_arg_0 == var_40_arg_1; [L365] SORT_3 var_41_arg_0 = var_39; [L366] SORT_3 var_41_arg_1 = var_40; [L367] SORT_3 var_41 = var_41_arg_0 | var_41_arg_1; [L368] SORT_3 var_42_arg_0 = var_30; [L369] SORT_3 var_42_arg_1 = var_41; [L370] SORT_3 var_42 = var_42_arg_0 & var_42_arg_1; [L371] SORT_3 var_43_arg_0 = var_28; [L372] SORT_3 var_43_arg_1 = var_42; [L373] SORT_3 var_43 = var_43_arg_0 | var_43_arg_1; [L374] SORT_21 var_44_arg_0 = state_23; [L375] SORT_21 var_44_arg_1 = var_33; [L376] SORT_3 var_44 = var_44_arg_0 == var_44_arg_1; [L377] SORT_3 var_45_arg_0 = var_43; [L378] SORT_3 var_45_arg_1 = var_44; [L379] SORT_3 var_45 = var_45_arg_0 | var_45_arg_1; [L380] SORT_21 var_47_arg_0 = state_23; [L381] SORT_21 var_47_arg_1 = var_46; [L382] SORT_3 var_47 = var_47_arg_0 == var_47_arg_1; [L383] SORT_3 var_48_arg_0 = var_45; [L384] SORT_3 var_48_arg_1 = var_47; [L385] SORT_3 var_48 = var_48_arg_0 | var_48_arg_1; [L386] SORT_21 var_50_arg_0 = state_23; [L387] SORT_21 var_50_arg_1 = var_49; [L388] SORT_3 var_50 = var_50_arg_0 == var_50_arg_1; [L389] SORT_3 var_51_arg_0 = var_48; [L390] SORT_3 var_51_arg_1 = var_50; [L391] SORT_3 var_51 = var_51_arg_0 | var_51_arg_1; [L392] SORT_21 var_53_arg_0 = state_23; [L393] SORT_21 var_53_arg_1 = var_52; [L394] SORT_3 var_53 = var_53_arg_0 == var_53_arg_1; [L395] SORT_3 var_54_arg_0 = var_51; [L396] SORT_3 var_54_arg_1 = var_53; [L397] SORT_3 var_54 = var_54_arg_0 | var_54_arg_1; [L398] SORT_21 var_55_arg_0 = state_23; [L399] SORT_21 var_55_arg_1 = var_37; [L400] SORT_3 var_55 = var_55_arg_0 == var_55_arg_1; [L401] SORT_3 var_56_arg_0 = var_54; [L402] SORT_3 var_56_arg_1 = var_55; [L403] SORT_3 var_56 = var_56_arg_0 | var_56_arg_1; [L404] SORT_3 var_58_arg_0 = var_56; [L405] SORT_3 var_58 = ~var_58_arg_0; [L406] SORT_3 var_59_arg_0 = var_57; [L407] SORT_3 var_59_arg_1 = var_58; [L408] SORT_3 var_59 = var_59_arg_0 & var_59_arg_1; [L409] var_59 = var_59 & mask_SORT_3 [L410] SORT_3 bad_60_arg_0 = var_59; [L411] CALL __VERIFIER_assert(!(bad_60_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: 1.3s, 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 [2022-11-20 09:33:39,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 219260ea480bf5febe53042a46b4334f74f581e820f56e05a80e0503229ceb75 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:33:42,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:33:42,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:33:42,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:33:42,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:33:42,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:33:42,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:33:42,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:33:42,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:33:42,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:33:42,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:33:42,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:33:42,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:33:42,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:33:42,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:33:42,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:33:42,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:33:42,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:33:42,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:33:42,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:33:42,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:33:42,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:33:42,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:33:42,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:33:42,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:33:42,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:33:42,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:33:42,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:33:42,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:33:42,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:33:42,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:33:42,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:33:42,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:33:42,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:33:42,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:33:42,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:33:42,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:33:42,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:33:42,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:33:42,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:33:42,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:33:42,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:33:42,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:33:42,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:33:42,564 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:33:42,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:33:42,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:33:42,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:33:42,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:33:42,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:33:42,566 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:33:42,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:33:42,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:33:42,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:33:42,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:33:42,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:33:42,568 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:33:42,568 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:33:42,569 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:33:42,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:33:42,569 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:33:42,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:33:42,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:33:42,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:33:42,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:33:42,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:33:42,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:33:42,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:33:42,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:33:42,571 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:33:42,571 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:33:42,571 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:33:42,572 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:33:42,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:33:42,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:33:42,572 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 219260ea480bf5febe53042a46b4334f74f581e820f56e05a80e0503229ceb75 [2022-11-20 09:33:42,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:33:43,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:33:43,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:33:43,015 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:33:43,017 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:33:43,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2022-11-20 09:33:46,203 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:33:46,640 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:33:46,641 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2022-11-20 09:33:46,659 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/data/7e683b691/8bf902433db443a78a4d9f6de16c3a38/FLAG009776ff7 [2022-11-20 09:33:46,678 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/data/7e683b691/8bf902433db443a78a4d9f6de16c3a38 [2022-11-20 09:33:46,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:33:46,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:33:46,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:33:46,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:33:46,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:33:46,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:33:46" (1/1) ... [2022-11-20 09:33:46,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f10180b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:46, skipping insertion in model container [2022-11-20 09:33:46,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:33:46" (1/1) ... [2022-11-20 09:33:46,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:33:46,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:33:46,970 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_694b39b8-330a-4607-a78d-9b59f625f6de/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c[1107,1120] [2022-11-20 09:33:47,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:33:47,485 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:33:47,497 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_694b39b8-330a-4607-a78d-9b59f625f6de/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c[1107,1120] [2022-11-20 09:33:47,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:33:47,665 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:33:47,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47 WrapperNode [2022-11-20 09:33:47,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:33:47,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:33:47,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:33:47,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:33:47,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:47,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:47,858 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2513 [2022-11-20 09:33:47,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:33:47,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:33:47,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:33:47,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:33:47,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:47,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:47,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:47,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:47,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:47,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:47,979 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:47,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:48,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:33:48,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:33:48,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:33:48,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:33:48,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (1/1) ... [2022-11-20 09:33:48,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:33:48,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:33:48,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:33:48,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:33:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:33:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:33:48,700 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:33:48,703 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:33:52,576 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:33:52,591 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:33:52,592 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:33:52,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:52 BoogieIcfgContainer [2022-11-20 09:33:52,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:33:52,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:33:52,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:33:52,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:33:52,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:33:46" (1/3) ... [2022-11-20 09:33:52,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62856792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:52, skipping insertion in model container [2022-11-20 09:33:52,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:47" (2/3) ... [2022-11-20 09:33:52,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62856792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:52, skipping insertion in model container [2022-11-20 09:33:52,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:52" (3/3) ... [2022-11-20 09:33:52,606 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2022-11-20 09:33:52,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:33:52,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:33:52,688 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:33:52,694 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;@520a76bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:33:52,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:33:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:52,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 09:33:52,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:52,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 09:33:52,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:52,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:52,714 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 09:33:52,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:52,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148001003] [2022-11-20 09:33:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:52,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:52,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:52,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:52,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:33:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:53,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-20 09:33:53,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:53,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:33:53,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:53,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:53,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148001003] [2022-11-20 09:33:53,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148001003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:53,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:53,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:33:53,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140399332] [2022-11-20 09:33:53,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:53,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:33:53,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:53,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:33:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:33:53,811 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:54,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:54,110 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 09:33:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:33:54,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 09:33:54,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:54,121 INFO L225 Difference]: With dead ends: 20 [2022-11-20 09:33:54,121 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 09:33:54,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:33:54,130 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:54,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:33:54,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 09:33:54,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 09:33:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 09:33:54,164 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 09:33:54,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:54,165 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 09:33:54,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 09:33:54,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 09:33:54,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:54,166 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:54,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:54,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:54,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:54,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:54,372 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 09:33:54,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:54,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184929736] [2022-11-20 09:33:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:54,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:54,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:54,378 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:54,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:33:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:55,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 2382 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-20 09:33:55,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:33:55,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:33:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:33:56,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:56,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184929736] [2022-11-20 09:33:56,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184929736] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:33:56,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:33:56,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 09:33:56,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690562586] [2022-11-20 09:33:56,294 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:33:56,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 09:33:56,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:56,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 09:33:56,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:33:56,297 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:56,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:56,887 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 09:33:56,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 09:33:56,889 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 09:33:56,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:56,889 INFO L225 Difference]: With dead ends: 16 [2022-11-20 09:33:56,889 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 09:33:56,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-20 09:33:56,891 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:56,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 12 Unchecked, 0.5s Time] [2022-11-20 09:33:56,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 09:33:56,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 09:33:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:56,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 09:33:56,895 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 09:33:56,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:56,896 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 09:33:56,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:56,896 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 09:33:56,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:33:56,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:56,897 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 09:33:56,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:57,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:57,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:57,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:57,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 09:33:57,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:57,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5431770] [2022-11-20 09:33:57,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:33:57,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:57,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:57,119 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:57,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b39b8-330a-4607-a78d-9b59f625f6de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:33:58,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 09:33:58,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:33:59,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 4508 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-20 09:33:59,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:05,452 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:34:05,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:34:22,816 WARN L233 SmtUtils]: Spent 17.06s on a formula simplification. DAG size of input: 138 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)