./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a --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 e0b80b001f46b9958fd499d9a24ce530dbf6f37e78975cdf0f472d8dbdc342cd --- 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-b5237d8 [2022-11-21 09:12:56,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:12:56,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:12:56,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:12:56,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:12:56,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:12:56,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:12:56,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:12:56,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:12:56,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:12:56,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:12:56,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:12:56,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:12:56,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:12:56,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:12:56,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:12:56,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:12:56,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:12:56,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:12:56,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:12:56,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:12:56,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:12:56,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:12:56,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:12:56,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:12:56,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:12:56,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:12:56,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:12:56,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:12:56,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:12:56,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:12:56,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:12:56,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:12:56,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:12:56,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:12:56,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:12:56,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:12:56,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:12:56,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:12:56,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:12:56,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:12:56,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 09:12:56,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:12:56,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:12:56,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:12:56,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:12:56,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:12:56,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:12:56,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:12:56,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:12:56,243 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:12:56,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:12:56,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:12:56,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:12:56,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:12:56,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:12:56,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:12:56,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:12:56,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:12:56,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:12:56,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:12:56,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:12:56,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:12:56,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:12:56,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:12:56,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:12:56,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:12:56,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:12:56,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:12:56,248 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:12:56,248 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:12:56,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:12:56,248 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_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0b80b001f46b9958fd499d9a24ce530dbf6f37e78975cdf0f472d8dbdc342cd [2022-11-21 09:12:56,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:12:56,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:12:56,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:12:56,597 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:12:56,598 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:12:56,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2022-11-21 09:12:59,667 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:12:59,951 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:12:59,951 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2022-11-21 09:12:59,959 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/data/621f3d4dc/d47a893afe994fdcaf8c318f2c974114/FLAG9501f5374 [2022-11-21 09:12:59,979 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/data/621f3d4dc/d47a893afe994fdcaf8c318f2c974114 [2022-11-21 09:12:59,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:12:59,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:12:59,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:12:59,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:12:59,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:12:59,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:12:59" (1/1) ... [2022-11-21 09:12:59,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1857c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:59, skipping insertion in model container [2022-11-21 09:12:59,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:12:59" (1/1) ... [2022-11-21 09:13:00,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:13:00,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:13:00,198 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_aa88323d-a9bb-45f3-86df-90006c01164f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1107,1120] [2022-11-21 09:13:00,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:13:00,255 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:13:00,272 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_aa88323d-a9bb-45f3-86df-90006c01164f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1107,1120] [2022-11-21 09:13:00,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:13:00,306 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:13:00,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00 WrapperNode [2022-11-21 09:13:00,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:13:00,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:13:00,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:13:00,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:13:00,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,343 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-21 09:13:00,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:13:00,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:13:00,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:13:00,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:13:00,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,365 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:13:00,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:13:00,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:13:00,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:13:00,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (1/1) ... [2022-11-21 09:13:00,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:13:00,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:13:00,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:13:00,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:13:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:13:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:13:00,523 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:13:00,526 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:13:00,711 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:13:00,718 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:13:00,718 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:13:00,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:13:00 BoogieIcfgContainer [2022-11-21 09:13:00,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:13:00,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:13:00,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:13:00,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:13:00,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:12:59" (1/3) ... [2022-11-21 09:13:00,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d44bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:13:00, skipping insertion in model container [2022-11-21 09:13:00,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:00" (2/3) ... [2022-11-21 09:13:00,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d44bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:13:00, skipping insertion in model container [2022-11-21 09:13:00,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:13:00" (3/3) ... [2022-11-21 09:13:00,734 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bug-1.c [2022-11-21 09:13:00,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:13:00,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 09:13:00,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:13:00,807 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;@28db271a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:13:00,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 09:13:00,812 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) [2022-11-21 09:13:00,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 09:13:00,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:13:00,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 09:13:00,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:13:00,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:00,826 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 09:13:00,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:13:00,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751215787] [2022-11-21 09:13:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:00,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:13:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:13:01,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:13:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:13:01,343 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:13:01,344 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 09:13:01,346 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 09:13:01,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:13:01,352 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 09:13:01,357 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:13:01,370 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 09:13:01,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:13:01 BoogieIcfgContainer [2022-11-21 09:13:01,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:13:01,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:13:01,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:13:01,379 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:13:01,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:13:00" (3/4) ... [2022-11-21 09:13:01,382 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 09:13:01,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:13:01,384 INFO L158 Benchmark]: Toolchain (without parser) took 1397.91ms. Allocated memory is still 169.9MB. Free memory was 136.3MB in the beginning and 89.3MB in the end (delta: 47.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-21 09:13:01,384 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 169.9MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:13:01,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.37ms. Allocated memory is still 169.9MB. Free memory was 136.3MB in the beginning and 125.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:13:01,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.61ms. Allocated memory is still 169.9MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:13:01,386 INFO L158 Benchmark]: Boogie Preprocessor took 23.16ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 122.9MB in the end (delta: 922.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:13:01,387 INFO L158 Benchmark]: RCFGBuilder took 352.58ms. Allocated memory is still 169.9MB. Free memory was 122.9MB in the beginning and 111.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:13:01,387 INFO L158 Benchmark]: TraceAbstraction took 654.61ms. Allocated memory is still 169.9MB. Free memory was 111.3MB in the beginning and 89.9MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 09:13:01,388 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 169.9MB. Free memory was 89.9MB in the beginning and 89.3MB in the end (delta: 537.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:13:01,391 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 169.9MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.37ms. Allocated memory is still 169.9MB. Free memory was 136.3MB in the beginning and 125.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.61ms. Allocated memory is still 169.9MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.16ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 122.9MB in the end (delta: 922.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.58ms. Allocated memory is still 169.9MB. Free memory was 122.9MB in the beginning and 111.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 654.61ms. Allocated memory is still 169.9MB. Free memory was 111.3MB in the beginning and 89.9MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 169.9MB. Free memory was 89.9MB in the beginning and 89.3MB in the end (delta: 537.9kB). 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 56, overapproximation of bitwiseAnd at line 46. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L29] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L31] const SORT_1 var_4 = 1; [L32] const SORT_7 var_9 = 1; [L33] const SORT_1 var_17 = 0; [L35] SORT_1 input_2; [L36] SORT_1 input_3; [L38] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L40] SORT_1 init_6_arg_1 = var_4; [L41] state_5 = init_6_arg_1 VAL [init_6_arg_1=1, mask_SORT_1=1, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_7=2147483648, state_5=1, var_17=0, var_4=1, var_9=1] [L44] input_2 = __VERIFIER_nondet_uchar() [L45] input_3 = __VERIFIER_nondet_uchar() [L46] input_3 = input_3 & mask_SORT_1 [L49] SORT_1 var_8_arg_0 = state_5; [L50] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L51] SORT_7 var_8 = var_8_arg_0; [L52] SORT_7 var_10_arg_0 = var_8; [L53] SORT_7 var_10_arg_1 = var_9; [L54] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L55] SORT_1 var_13_arg_0 = var_10; [L56] SORT_1 var_13 = ~var_13_arg_0; [L57] SORT_1 var_14_arg_0 = var_4; [L58] SORT_1 var_14_arg_1 = var_13; [L59] SORT_1 var_14 = var_14_arg_0 & var_14_arg_1; [L60] var_14 = var_14 & mask_SORT_1 [L61] SORT_1 bad_15_arg_0 = var_14; [L62] CALL __VERIFIER_assert(!(bad_15_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 09:13:01,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a --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 e0b80b001f46b9958fd499d9a24ce530dbf6f37e78975cdf0f472d8dbdc342cd --- 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-b5237d8 [2022-11-21 09:13:04,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:13:04,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:13:04,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:13:04,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:13:04,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:13:04,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:13:04,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:13:04,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:13:04,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:13:04,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:13:04,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:13:04,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:13:04,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:13:04,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:13:04,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:13:04,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:13:04,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:13:04,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:13:04,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:13:04,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:13:04,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:13:04,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:13:04,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:13:04,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:13:04,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:13:04,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:13:04,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:13:04,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:13:04,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:13:04,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:13:04,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:13:04,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:13:04,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:13:04,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:13:04,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:13:04,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:13:04,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:13:04,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:13:04,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:13:04,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:13:04,242 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 09:13:04,289 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:13:04,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:13:04,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:13:04,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:13:04,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:13:04,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:13:04,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:13:04,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:13:04,293 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:13:04,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:13:04,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:13:04,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:13:04,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:13:04,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:13:04,296 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 09:13:04,296 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 09:13:04,297 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 09:13:04,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:13:04,297 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:13:04,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:13:04,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:13:04,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:13:04,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:13:04,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:13:04,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:13:04,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:13:04,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:13:04,300 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 09:13:04,300 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 09:13:04,300 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:13:04,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:13:04,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:13:04,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 09:13:04,302 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_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0b80b001f46b9958fd499d9a24ce530dbf6f37e78975cdf0f472d8dbdc342cd [2022-11-21 09:13:04,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:13:04,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:13:04,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:13:04,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:13:04,814 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:13:04,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2022-11-21 09:13:07,923 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:13:08,120 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:13:08,120 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c [2022-11-21 09:13:08,130 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/data/4957638d4/f943c5dd35364e7d925d6dfbf6528390/FLAGc2cd86c2e [2022-11-21 09:13:08,152 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/data/4957638d4/f943c5dd35364e7d925d6dfbf6528390 [2022-11-21 09:13:08,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:13:08,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:13:08,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:13:08,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:13:08,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:13:08,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5143e595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08, skipping insertion in model container [2022-11-21 09:13:08,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:13:08,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:13:08,410 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_aa88323d-a9bb-45f3-86df-90006c01164f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1107,1120] [2022-11-21 09:13:08,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:13:08,480 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:13:08,496 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_aa88323d-a9bb-45f3-86df-90006c01164f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bug-1.c[1107,1120] [2022-11-21 09:13:08,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:13:08,554 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:13:08,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08 WrapperNode [2022-11-21 09:13:08,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:13:08,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:13:08,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:13:08,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:13:08,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,604 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-21 09:13:08,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:13:08,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:13:08,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:13:08,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:13:08,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,647 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:13:08,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:13:08,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:13:08,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:13:08,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (1/1) ... [2022-11-21 09:13:08,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:13:08,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:13:08,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:13:08,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:13:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:13:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:13:08,860 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:13:08,862 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:13:08,999 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:13:09,007 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:13:09,007 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:13:09,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:13:09 BoogieIcfgContainer [2022-11-21 09:13:09,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:13:09,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:13:09,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:13:09,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:13:09,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:13:08" (1/3) ... [2022-11-21 09:13:09,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e08e64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:13:09, skipping insertion in model container [2022-11-21 09:13:09,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:08" (2/3) ... [2022-11-21 09:13:09,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e08e64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:13:09, skipping insertion in model container [2022-11-21 09:13:09,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:13:09" (3/3) ... [2022-11-21 09:13:09,019 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bug-1.c [2022-11-21 09:13:09,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:13:09,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 09:13:09,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:13:09,128 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;@1687a2b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:13:09,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 09:13:09,133 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) [2022-11-21 09:13:09,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 09:13:09,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:13:09,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 09:13:09,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:13:09,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 09:13:09,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:13:09,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949209820] [2022-11-21 09:13:09,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:09,171 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 [2022-11-21 09:13:09,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:13:09,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 09:13:09,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 09:13:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:09,306 WARN L261 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-21 09:13:09,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:13:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:13:09,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:13:09,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:13:09,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949209820] [2022-11-21 09:13:09,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949209820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:13:09,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:13:09,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:13:09,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219511525] [2022-11-21 09:13:09,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:13:09,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:13:09,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:13:09,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:13:09,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:13:09,656 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) [2022-11-21 09:13:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:13:09,744 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 09:13:09,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:13:09,748 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 [2022-11-21 09:13:09,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:13:09,759 INFO L225 Difference]: With dead ends: 20 [2022-11-21 09:13:09,759 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 09:13:09,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:13:09,766 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:13:09,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:13:09,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 09:13:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 09:13:09,800 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) [2022-11-21 09:13:09,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 09:13:09,802 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 09:13:09,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:13:09,803 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 09:13:09,803 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) [2022-11-21 09:13:09,804 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 09:13:09,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 09:13:09,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:13:09,805 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:09,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 09:13:10,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 09:13:10,022 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:13:10,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:10,022 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 09:13:10,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:13:10,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944477638] [2022-11-21 09:13:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:10,024 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 [2022-11-21 09:13:10,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:13:10,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 09:13:10,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 09:13:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:10,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-21 09:13:10,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:13:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:13:10,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:13:10,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:13:10,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:13:10,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944477638] [2022-11-21 09:13:10,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944477638] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:13:10,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 09:13:10,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 09:13:10,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893697903] [2022-11-21 09:13:10,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 09:13:10,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 09:13:10,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:13:10,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 09:13:10,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:13:10,998 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) [2022-11-21 09:13:11,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:13:11,031 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2022-11-21 09:13:11,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:13:11,032 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 [2022-11-21 09:13:11,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:13:11,033 INFO L225 Difference]: With dead ends: 9 [2022-11-21 09:13:11,033 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 09:13:11,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:13:11,036 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:13:11,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:13:11,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 09:13:11,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 09:13:11,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-21 09:13:11,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 09:13:11,044 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-21 09:13:11,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:13:11,045 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:13:11,045 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) [2022-11-21 09:13:11,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 09:13:11,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 09:13:11,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 09:13:11,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 09:13:11,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 09:13:11,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 09:13:11,308 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 09:13:11,308 INFO L895 garLoopResultBuilder]: At program point L42-2(lines 42 75) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~var_17~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~state_5~0#1| |ULTIMATE.start_main_~var_4~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~var_4~0#1|) (= |ULTIMATE.start_main_~var_9~0#1| (_ bv1 32))) [2022-11-21 09:13:11,309 INFO L899 garLoopResultBuilder]: For program point L42-3(lines 42 75) no Hoare annotation was computed. [2022-11-21 09:13:11,309 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 09:13:11,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 09:13:11,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 09:13:11,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-21 09:13:11,310 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-21 09:13:11,310 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-21 09:13:11,310 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-21 09:13:11,311 INFO L895 garLoopResultBuilder]: At program point L76(lines 22 77) the Hoare annotation is: false [2022-11-21 09:13:11,314 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 09:13:11,316 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:13:11,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:13:11 BoogieIcfgContainer [2022-11-21 09:13:11,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:13:11,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:13:11,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:13:11,337 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:13:11,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:13:09" (3/4) ... [2022-11-21 09:13:11,341 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 09:13:11,351 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 09:13:11,352 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 09:13:11,352 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 09:13:11,390 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:13:11,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:13:11,391 INFO L158 Benchmark]: Toolchain (without parser) took 3233.57ms. Allocated memory was 60.8MB in the beginning and 98.6MB in the end (delta: 37.7MB). Free memory was 29.6MB in the beginning and 74.4MB in the end (delta: -44.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:13:11,391 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 60.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:13:11,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.73ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 29.4MB in the beginning and 55.4MB in the end (delta: -26.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-11-21 09:13:11,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.14ms. Allocated memory is still 81.8MB. Free memory was 55.4MB in the beginning and 53.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:13:11,392 INFO L158 Benchmark]: Boogie Preprocessor took 48.44ms. Allocated memory is still 81.8MB. Free memory was 53.8MB in the beginning and 52.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:13:11,393 INFO L158 Benchmark]: RCFGBuilder took 354.90ms. Allocated memory is still 81.8MB. Free memory was 52.5MB in the beginning and 42.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:13:11,393 INFO L158 Benchmark]: TraceAbstraction took 2324.48ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 41.7MB in the beginning and 77.3MB in the end (delta: -35.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-11-21 09:13:11,394 INFO L158 Benchmark]: Witness Printer took 53.34ms. Allocated memory is still 98.6MB. Free memory was 77.3MB in the beginning and 74.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:13:11,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 60.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.73ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 29.4MB in the beginning and 55.4MB in the end (delta: -26.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.14ms. Allocated memory is still 81.8MB. Free memory was 55.4MB in the beginning and 53.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.44ms. Allocated memory is still 81.8MB. Free memory was 53.8MB in the beginning and 52.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.90ms. Allocated memory is still 81.8MB. Free memory was 52.5MB in the beginning and 42.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2324.48ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 41.7MB in the beginning and 77.3MB in the end (delta: -35.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Witness Printer took 53.34ms. Allocated memory is still 98.6MB. Free memory was 77.3MB in the beginning and 74.4MB in the end (delta: 3.0MB). 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 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 7 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 17 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 4 QuantifiedInterpolants, 370 SizeOfPredicates, 44 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (((1bv8 == mask_SORT_1 && var_17 == 0bv8) && state_5 == var_4) && 1bv8 == var_4) && var_9 == 1bv32 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-21 09:13:11,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa88323d-a9bb-45f3-86df-90006c01164f/bin/uautomizer-vX5HgA9Q3a/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 Writing output log to file Ultimate.log Result: TRUE