./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS --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 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 --- 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-4e7fbc6 [2022-11-23 01:47:23,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:47:23,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:47:23,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:47:23,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:47:23,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:47:23,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:47:23,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:47:23,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:47:23,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:47:23,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:47:23,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:47:23,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:47:23,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:47:23,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:47:23,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:47:23,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:47:23,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:47:23,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:47:23,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:47:23,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:47:23,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:47:23,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:47:23,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:47:23,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:47:23,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:47:23,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:47:23,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:47:23,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:47:23,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:47:23,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:47:23,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:47:23,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:47:23,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:47:23,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:47:23,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:47:23,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:47:23,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:47:23,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:47:23,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:47:23,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:47:23,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-23 01:47:23,189 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:47:23,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:47:23,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:47:23,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:47:23,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:47:23,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:47:23,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:47:23,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:47:23,192 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:47:23,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:47:23,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 01:47:23,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:47:23,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 01:47:23,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:47:23,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 01:47:23,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 01:47:23,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:47:23,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 01:47:23,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:47:23,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:47:23,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:47:23,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:47:23,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:47:23,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:47:23,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 01:47:23,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 01:47:23,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 01:47:23,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:47:23,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 01:47:23,198 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:47:23,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:47:23,199 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 [2022-11-23 01:47:23,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:47:23,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:47:23,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:47:23,457 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:47:23,458 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:47:23,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-11-23 01:47:26,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:47:26,755 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:47:26,756 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-11-23 01:47:26,770 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/data/9161a7f01/60b8ecb42896429a8f6d27f964d3055d/FLAG73abae8cb [2022-11-23 01:47:26,787 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/data/9161a7f01/60b8ecb42896429a8f6d27f964d3055d [2022-11-23 01:47:26,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:47:26,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:47:26,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:47:26,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:47:26,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:47:26,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:26" (1/1) ... [2022-11-23 01:47:26,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9a7369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:26, skipping insertion in model container [2022-11-23 01:47:26,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:26" (1/1) ... [2022-11-23 01:47:26,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:47:26,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:47:27,022 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_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-11-23 01:47:27,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:47:27,102 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:47:27,114 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_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-11-23 01:47:27,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:47:27,208 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:47:27,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27 WrapperNode [2022-11-23 01:47:27,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:47:27,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:47:27,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:47:27,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:47:27,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,277 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 267 [2022-11-23 01:47:27,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:47:27,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:47:27,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:47:27,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:47:27,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:47:27,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:47:27,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:47:27,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:47:27,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (1/1) ... [2022-11-23 01:47:27,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:47:27,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:47:27,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:47:27,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:47:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:47:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:47:27,585 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:47:27,587 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:47:28,962 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:47:28,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:47:28,975 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 01:47:28,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:47:28 BoogieIcfgContainer [2022-11-23 01:47:28,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:47:28,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:47:28,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:47:28,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:47:28,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:47:26" (1/3) ... [2022-11-23 01:47:28,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bbc79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:47:28, skipping insertion in model container [2022-11-23 01:47:28,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:27" (2/3) ... [2022-11-23 01:47:28,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bbc79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:47:28, skipping insertion in model container [2022-11-23 01:47:28,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:47:28" (3/3) ... [2022-11-23 01:47:28,996 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2004_1.c [2022-11-23 01:47:29,015 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:47:29,015 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 01:47:29,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:47:29,090 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;@4bbf16c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:47:29,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 01:47:29,096 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) [2022-11-23 01:47:29,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 01:47:29,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:47:29,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 01:47:29,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:47:29,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:47:29,111 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 01:47:29,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:47:29,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002553176] [2022-11-23 01:47:29,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:47:29,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:47:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:47:29,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:47:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:47:29,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:47:29,365 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 01:47:29,366 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 01:47:29,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 01:47:29,373 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 01:47:29,377 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 01:47:29,399 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 01:47:29,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:47:29 BoogieIcfgContainer [2022-11-23 01:47:29,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 01:47:29,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 01:47:29,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 01:47:29,413 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 01:47:29,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:47:28" (3/4) ... [2022-11-23 01:47:29,417 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 01:47:29,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 01:47:29,420 INFO L158 Benchmark]: Toolchain (without parser) took 2627.00ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 141.4MB in the beginning and 179.5MB in the end (delta: -38.1MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-23 01:47:29,420 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:47:29,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.29ms. Allocated memory is still 184.5MB. Free memory was 141.0MB in the beginning and 125.3MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 01:47:29,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.80ms. Allocated memory is still 184.5MB. Free memory was 125.3MB in the beginning and 121.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 01:47:29,423 INFO L158 Benchmark]: Boogie Preprocessor took 42.29ms. Allocated memory is still 184.5MB. Free memory was 121.6MB in the beginning and 119.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:47:29,428 INFO L158 Benchmark]: RCFGBuilder took 1660.11ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 119.3MB in the beginning and 84.5MB in the end (delta: 34.8MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2022-11-23 01:47:29,430 INFO L158 Benchmark]: TraceAbstraction took 426.60ms. Allocated memory is still 222.3MB. Free memory was 83.5MB in the beginning and 179.5MB in the end (delta: -96.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:47:29,431 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 222.3MB. Free memory was 179.5MB in the beginning and 179.5MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:47:29,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.29ms. Allocated memory is still 184.5MB. Free memory was 141.0MB in the beginning and 125.3MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.80ms. Allocated memory is still 184.5MB. Free memory was 125.3MB in the beginning and 121.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.29ms. Allocated memory is still 184.5MB. Free memory was 121.6MB in the beginning and 119.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1660.11ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 119.3MB in the beginning and 84.5MB in the end (delta: 34.8MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. * TraceAbstraction took 426.60ms. Allocated memory is still 222.3MB. Free memory was 83.5MB in the beginning and 179.5MB in the end (delta: -96.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 222.3MB. Free memory was 179.5MB in the beginning and 179.5MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 64, overapproximation of bitwiseAnd at line 69. 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_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 3); [L29] const SORT_23 msb_SORT_23 = (SORT_23)1 << (3 - 1); [L31] const SORT_1 var_3 = 0; [L32] const SORT_1 var_9 = 1; [L34] SORT_1 input_2; [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L40] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L41] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L42] SORT_23 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L43] SORT_23 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L44] SORT_23 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L46] SORT_1 init_5_arg_1 = var_3; [L47] state_4 = init_5_arg_1 [L48] SORT_1 init_14_arg_1 = var_9; [L49] state_13 = init_14_arg_1 [L50] SORT_1 init_16_arg_1 = var_3; [L51] state_15 = init_16_arg_1 [L52] SORT_1 init_18_arg_1 = var_3; [L53] state_17 = init_18_arg_1 [L54] SORT_1 init_20_arg_1 = var_3; [L55] state_19 = init_20_arg_1 [L56] SORT_1 init_22_arg_1 = var_9; [L57] state_21 = init_22_arg_1 VAL [init_14_arg_1=1, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=1, init_5_arg_1=0, mask_SORT_1=1, mask_SORT_23=7, msb_SORT_1=1, msb_SORT_23=4, state_13=1, state_15=0, state_17=0, state_19=0, state_21=1, state_24=0, state_25=0, state_26=0, state_4=0, var_3=0, var_9=1] [L60] input_2 = __VERIFIER_nondet_uchar() [L63] SORT_1 var_6_arg_0 = state_4; [L64] SORT_1 var_6 = ~var_6_arg_0; [L65] SORT_1 var_10_arg_0 = var_6; [L66] SORT_1 var_10 = ~var_10_arg_0; [L67] SORT_1 var_11_arg_0 = var_9; [L68] SORT_1 var_11_arg_1 = var_10; [L69] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L70] var_11 = var_11 & mask_SORT_1 [L71] SORT_1 bad_12_arg_0 = var_11; [L72] CALL __VERIFIER_assert(!(bad_12_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 01:47:29,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS --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 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 --- 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-4e7fbc6 [2022-11-23 01:47:31,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:47:31,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:47:31,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:47:31,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:47:31,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:47:31,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:47:31,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:47:31,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:47:31,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:47:31,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:47:31,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:47:31,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:47:31,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:47:31,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:47:31,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:47:31,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:47:31,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:47:31,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:47:31,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:47:31,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:47:31,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:47:31,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:47:31,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:47:31,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:47:31,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:47:31,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:47:31,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:47:31,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:47:31,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:47:31,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:47:31,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:47:31,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:47:31,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:47:31,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:47:31,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:47:31,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:47:31,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:47:31,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:47:31,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:47:31,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:47:31,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-23 01:47:31,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:47:31,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:47:31,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:47:31,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:47:31,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:47:31,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:47:31,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:47:31,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:47:31,988 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:47:31,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:47:31,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:47:31,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 01:47:31,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:47:31,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 01:47:31,990 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 01:47:31,991 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 01:47:31,991 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 01:47:31,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 01:47:31,991 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:47:31,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 01:47:31,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:47:31,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:47:31,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:47:31,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:47:31,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:47:31,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:47:31,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 01:47:31,993 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 01:47:31,994 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 01:47:31,994 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:47:31,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 01:47:31,994 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:47:31,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:47:31,995 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 01:47:31,995 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 [2022-11-23 01:47:32,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:47:32,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:47:32,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:47:32,384 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:47:32,385 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:47:32,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-11-23 01:47:35,496 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:47:35,761 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:47:35,762 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-11-23 01:47:35,770 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/data/adf1be55f/0cfcc05e5d6548f89259c4f9fbfea749/FLAG65dc5066e [2022-11-23 01:47:35,795 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/data/adf1be55f/0cfcc05e5d6548f89259c4f9fbfea749 [2022-11-23 01:47:35,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:47:35,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:47:35,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:47:35,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:47:35,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:47:35,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:35" (1/1) ... [2022-11-23 01:47:35,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b02d2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:35, skipping insertion in model container [2022-11-23 01:47:35,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:35" (1/1) ... [2022-11-23 01:47:35,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:47:35,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:47:35,977 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_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-11-23 01:47:36,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:47:36,079 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:47:36,091 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_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-11-23 01:47:36,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:47:36,199 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:47:36,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36 WrapperNode [2022-11-23 01:47:36,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:47:36,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:47:36,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:47:36,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:47:36,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,266 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 267 [2022-11-23 01:47:36,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:47:36,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:47:36,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:47:36,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:47:36,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:47:36,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:47:36,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:47:36,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:47:36,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (1/1) ... [2022-11-23 01:47:36,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:47:36,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:47:36,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:47:36,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:47:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:47:36,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:47:36,652 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:47:36,654 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:47:37,066 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:47:37,072 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:47:37,081 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 01:47:37,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:47:37 BoogieIcfgContainer [2022-11-23 01:47:37,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:47:37,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:47:37,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:47:37,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:47:37,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:47:35" (1/3) ... [2022-11-23 01:47:37,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca57f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:47:37, skipping insertion in model container [2022-11-23 01:47:37,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:36" (2/3) ... [2022-11-23 01:47:37,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca57f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:47:37, skipping insertion in model container [2022-11-23 01:47:37,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:47:37" (3/3) ... [2022-11-23 01:47:37,095 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2004_1.c [2022-11-23 01:47:37,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:47:37,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 01:47:37,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:47:37,191 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;@11033efd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:47:37,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 01:47:37,196 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) [2022-11-23 01:47:37,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 01:47:37,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:47:37,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 01:47:37,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:47:37,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:47:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 01:47:37,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 01:47:37,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797809683] [2022-11-23 01:47:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:47:37,223 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 [2022-11-23 01:47:37,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 01:47:37,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 01:47:37,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 01:47:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:47:37,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 01:47:37,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:47:37,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:47:37,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 01:47:37,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 01:47:37,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797809683] [2022-11-23 01:47:37,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797809683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:47:37,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:47:37,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 01:47:37,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894288664] [2022-11-23 01:47:37,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:47:37,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 01:47:37,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 01:47:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 01:47:37,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 01:47:37,496 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) [2022-11-23 01:47:37,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:47:37,564 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 01:47:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 01:47:37,566 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 [2022-11-23 01:47:37,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:47:37,574 INFO L225 Difference]: With dead ends: 20 [2022-11-23 01:47:37,575 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 01:47:37,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 01:47:37,581 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 [2022-11-23 01:47:37,582 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] [2022-11-23 01:47:37,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 01:47:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 01:47:37,611 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) [2022-11-23 01:47:37,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 01:47:37,613 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 01:47:37,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:47:37,613 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 01:47:37,614 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) [2022-11-23 01:47:37,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 01:47:37,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 01:47:37,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:47:37,615 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 01:47:37,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 01:47:37,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 01:47:37,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:47:37,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:47:37,827 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 01:47:37,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 01:47:37,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576824295] [2022-11-23 01:47:37,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:47:37,830 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 [2022-11-23 01:47:37,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 01:47:37,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 01:47:37,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 01:47:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:47:38,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-23 01:47:38,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:47:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:47:38,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 01:47:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:47:38,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 01:47:38,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576824295] [2022-11-23 01:47:38,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576824295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 01:47:38,412 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 01:47:38,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-23 01:47:38,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767241175] [2022-11-23 01:47:38,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 01:47:38,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 01:47:38,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 01:47:38,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 01:47:38,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 01:47:38,415 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) [2022-11-23 01:47:38,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:47:38,529 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 01:47:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 01:47:38,530 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 [2022-11-23 01:47:38,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:47:38,530 INFO L225 Difference]: With dead ends: 16 [2022-11-23 01:47:38,530 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 01:47:38,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-23 01:47:38,532 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 01:47:38,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 01:47:38,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 01:47:38,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-23 01:47:38,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 01:47:38,538 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-23 01:47:38,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:47:38,538 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 01:47:38,538 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) [2022-11-23 01:47:38,539 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 01:47:38,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 01:47:38,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:47:38,540 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 01:47:38,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 01:47:38,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 01:47:38,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:47:38,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:47:38,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-23 01:47:38,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 01:47:38,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293517595] [2022-11-23 01:47:38,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 01:47:38,755 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 [2022-11-23 01:47:38,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 01:47:38,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 01:47:38,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 01:47:38,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 01:47:38,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 01:47:38,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-23 01:47:39,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:47:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:47:39,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 01:47:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:47:40,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 01:47:40,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293517595] [2022-11-23 01:47:40,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293517595] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 01:47:40,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 01:47:40,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-23 01:47:40,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605876614] [2022-11-23 01:47:40,284 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 01:47:40,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 01:47:40,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 01:47:40,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 01:47:40,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 01:47:40,287 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:40,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 01:47:40,482 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-23 01:47:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 01:47:40,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-23 01:47:40,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 01:47:40,485 INFO L225 Difference]: With dead ends: 19 [2022-11-23 01:47:40,485 INFO L226 Difference]: Without dead ends: 17 [2022-11-23 01:47:40,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-11-23 01:47:40,486 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 01:47:40,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 22 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 01:47:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-23 01:47:40,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-23 01:47:40,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:40,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-23 01:47:40,495 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-23 01:47:40,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 01:47:40,495 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-23 01:47:40,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:47:40,496 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-23 01:47:40,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 01:47:40,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:47:40,497 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-23 01:47:40,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 01:47:40,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 01:47:40,698 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 01:47:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:47:40,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-23 01:47:40,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 01:47:40,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126699234] [2022-11-23 01:47:40,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 01:47:40,700 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 [2022-11-23 01:47:40,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 01:47:40,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 01:47:40,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 01:47:41,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-23 01:47:41,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 01:47:41,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 152 conjunts are in the unsatisfiable core [2022-11-23 01:47:41,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 01:49:05,022 WARN L233 SmtUtils]: Spent 1.37m on a formula simplification. DAG size of input: 200 DAG size of output: 196 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 01:49:31,866 WARN L233 SmtUtils]: Spent 26.38s on a formula simplification that was a NOOP. DAG size: 209 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 01:50:11,394 WARN L233 SmtUtils]: Spent 39.07s on a formula simplification that was a NOOP. DAG size: 202 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 01:50:34,613 WARN L233 SmtUtils]: Spent 12.53s on a formula simplification. DAG size of input: 206 DAG size of output: 26 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 01:50:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:50:34,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 01:50:59,944 WARN L233 SmtUtils]: Spent 18.98s on a formula simplification. DAG size of input: 349 DAG size of output: 302 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 01:51:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 01:51:00,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 01:51:00,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126699234] [2022-11-23 01:51:00,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126699234] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 01:51:00,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 01:51:00,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-23 01:51:00,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070637002] [2022-11-23 01:51:00,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 01:51:00,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 01:51:00,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 01:51:00,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 01:51:00,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=195, Unknown=3, NotChecked=0, Total=240 [2022-11-23 01:51:00,213 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-11-23 01:54:19,780 WARN L233 SmtUtils]: Spent 3.32m on a formula simplification. DAG size of input: 278 DAG size of output: 165 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 01:57:47,058 WARN L233 SmtUtils]: Spent 3.45m on a formula simplification. DAG size of input: 285 DAG size of output: 167 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 01:58:10,593 WARN L233 SmtUtils]: Spent 23.03s on a formula simplification. DAG size of input: 291 DAG size of output: 175 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 01:58:12,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 01:58:14,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 01:59:42,342 WARN L233 SmtUtils]: Spent 1.37m on a formula simplification. DAG size of input: 284 DAG size of output: 216 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:01:17,345 WARN L233 SmtUtils]: Spent 1.51m on a formula simplification. DAG size of input: 275 DAG size of output: 211 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:01:19,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 02:01:21,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-23 02:01:22,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-11-23 02:01:22,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:01:22,886 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-23 02:01:22,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 02:01:22,888 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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 14 [2022-11-23 02:01:22,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:01:22,888 INFO L225 Difference]: With dead ends: 22 [2022-11-23 02:01:22,889 INFO L226 Difference]: Without dead ends: 20 [2022-11-23 02:01:22,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 805.8s TimeCoverageRelationStatistics Valid=118, Invalid=337, Unknown=7, NotChecked=0, Total=462 [2022-11-23 02:01:22,890 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 32 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:01:22,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 40 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 4 Unknown, 0 Unchecked, 11.1s Time] [2022-11-23 02:01:22,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-23 02:01:22,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-23 02:01:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-23 02:01:22,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-23 02:01:22,903 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-23 02:01:22,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:01:22,904 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-23 02:01:22,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-11-23 02:01:22,904 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-23 02:01:22,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 02:01:22,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:01:22,905 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-23 02:01:22,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 02:01:23,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 02:01:23,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:01:23,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:01:23,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-23 02:01:23,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:01:23,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199316919] [2022-11-23 02:01:23,124 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 02:01:23,125 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 [2022-11-23 02:01:23,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:01:23,126 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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) [2022-11-23 02:01:23,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c8ef5a4-90c5-4a61-a2ed-a81ecdd0bd8a/bin/uautomizer-QkZJyEgLgS/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 (6)] Waiting until timeout for monitored process [2022-11-23 02:01:23,465 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 02:01:23,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 02:01:23,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 223 conjunts are in the unsatisfiable core [2022-11-23 02:01:23,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:01:32,736 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:01:41,043 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 147 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:01:49,315 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:01:58,633 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 165 DAG size of output: 143 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:01:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:01:58,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:02:06,226 WARN L233 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 221 DAG size of output: 219 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:02:32,648 WARN L233 SmtUtils]: Spent 16.60s on a formula simplification. DAG size of input: 457 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)