./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8 --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 30c8d3298019488dcd7196bee2bc8b40464790a0108d12e9fe9926ac2a94dbfd --- 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-e04fb08 [2022-11-16 12:04:09,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:04:09,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:04:09,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:04:09,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:04:09,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:04:09,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:04:09,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:04:09,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:04:09,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:04:09,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:04:09,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:04:09,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:04:09,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:04:09,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:04:09,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:04:09,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:04:09,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:04:09,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:04:09,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:04:09,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:04:09,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:04:09,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:04:09,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:04:09,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:04:09,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:04:09,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:04:09,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:04:09,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:04:09,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:04:09,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:04:09,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:04:09,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:04:09,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:04:09,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:04:09,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:04:09,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:04:09,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:04:09,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:04:09,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:04:09,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:04:09,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:04:09,500 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:04:09,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:04:09,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:04:09,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:04:09,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:04:09,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:04:09,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:04:09,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:04:09,509 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:04:09,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:04:09,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:04:09,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:04:09,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:04:09,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:04:09,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:04:09,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:04:09,512 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:04:09,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:04:09,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:04:09,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:04:09,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:04:09,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:04:09,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:04:09,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:04:09,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:04:09,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:04:09,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:04:09,516 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:04:09,517 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:04:09,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:04:09,517 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30c8d3298019488dcd7196bee2bc8b40464790a0108d12e9fe9926ac2a94dbfd [2022-11-16 12:04:09,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:04:09,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:04:09,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:04:09,900 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:04:09,901 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:04:09,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c [2022-11-16 12:04:09,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data/a0ab9a79f/792dd3b1bb17481bb6a1133624b6f303/FLAGc7b0b3b02 [2022-11-16 12:04:10,624 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:04:10,625 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c [2022-11-16 12:04:10,637 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data/a0ab9a79f/792dd3b1bb17481bb6a1133624b6f303/FLAGc7b0b3b02 [2022-11-16 12:04:10,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data/a0ab9a79f/792dd3b1bb17481bb6a1133624b6f303 [2022-11-16 12:04:10,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:04:10,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:04:10,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:04:10,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:04:10,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:04:10,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:04:10" (1/1) ... [2022-11-16 12:04:10,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e1ae14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:10, skipping insertion in model container [2022-11-16 12:04:10,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:04:10" (1/1) ... [2022-11-16 12:04:10,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:04:10,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:04:11,192 WARN L229 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_dd1ce326-e653-4fa8-939d-66e6a9310755/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c[1107,1120] [2022-11-16 12:04:11,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:04:11,345 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:04:11,356 WARN L229 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_dd1ce326-e653-4fa8-939d-66e6a9310755/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c[1107,1120] [2022-11-16 12:04:11,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:04:11,458 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:04:11,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11 WrapperNode [2022-11-16 12:04:11,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:04:11,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:04:11,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:04:11,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:04:11,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,569 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 694 [2022-11-16 12:04:11,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:04:11,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:04:11,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:04:11,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:04:11,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,621 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:04:11,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:04:11,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:04:11,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:04:11,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (1/1) ... [2022-11-16 12:04:11,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:04:11,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:04:11,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:04:11,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:04:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:04:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:04:12,044 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:04:12,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:04:16,723 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:04:16,736 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:04:16,737 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:04:16,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:16 BoogieIcfgContainer [2022-11-16 12:04:16,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:04:16,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:04:16,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:04:16,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:04:16,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:04:10" (1/3) ... [2022-11-16 12:04:16,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c700b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:16, skipping insertion in model container [2022-11-16 12:04:16,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:11" (2/3) ... [2022-11-16 12:04:16,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c700b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:16, skipping insertion in model container [2022-11-16 12:04:16,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:16" (3/3) ... [2022-11-16 12:04:16,751 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2001.c [2022-11-16 12:04:16,770 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:04:16,771 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:04:16,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:04:16,849 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;@21016d2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:04:16,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:04:16,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 37 states have internal predecessors, (58), 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) [2022-11-16 12:04:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 12:04:16,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:16,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:16,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1809713074, now seen corresponding path program 1 times [2022-11-16 12:04:16,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:16,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980555214] [2022-11-16 12:04:16,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:16,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:17,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:17,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980555214] [2022-11-16 12:04:17,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980555214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:17,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:17,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:04:17,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252434160] [2022-11-16 12:04:17,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:17,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:04:17,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:17,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:04:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:04:17,438 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 37 states have internal predecessors, (58), 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 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-16 12:04:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:17,531 INFO L93 Difference]: Finished difference Result 103 states and 167 transitions. [2022-11-16 12:04:17,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:04:17,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-16 12:04:17,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:17,542 INFO L225 Difference]: With dead ends: 103 [2022-11-16 12:04:17,542 INFO L226 Difference]: Without dead ends: 67 [2022-11-16 12:04:17,545 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 [2022-11-16 12:04:17,549 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 132 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:17,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 108 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:04:17,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-16 12:04:17,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 36. [2022-11-16 12:04:17,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.542857142857143) internal successors, (54), 35 states have internal predecessors, (54), 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) [2022-11-16 12:04:17,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 54 transitions. [2022-11-16 12:04:17,584 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 54 transitions. Word has length 7 [2022-11-16 12:04:17,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:17,585 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 54 transitions. [2022-11-16 12:04:17,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-16 12:04:17,585 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 54 transitions. [2022-11-16 12:04:17,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:04:17,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:17,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:17,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:04:17,587 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:17,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:17,587 INFO L85 PathProgramCache]: Analyzing trace with hash 268255406, now seen corresponding path program 1 times [2022-11-16 12:04:17,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:17,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657525797] [2022-11-16 12:04:17,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:17,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:04:17,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:04:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:04:17,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:04:17,746 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:04:17,748 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:04:17,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:04:17,757 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 12:04:17,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:04:17,807 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 12:04:17,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:04:17 BoogieIcfgContainer [2022-11-16 12:04:17,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:04:17,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:04:17,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:04:17,826 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:04:17,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:16" (3/4) ... [2022-11-16 12:04:17,830 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:04:17,830 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:04:17,832 INFO L158 Benchmark]: Toolchain (without parser) took 6947.48ms. Allocated memory was 155.2MB in the beginning and 314.6MB in the end (delta: 159.4MB). Free memory was 116.4MB in the beginning and 269.3MB in the end (delta: -152.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-11-16 12:04:17,833 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 66.0MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:04:17,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 571.15ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 113.5MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:04:17,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.97ms. Allocated memory is still 155.2MB. Free memory was 113.5MB in the beginning and 105.7MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:04:17,842 INFO L158 Benchmark]: Boogie Preprocessor took 64.41ms. Allocated memory is still 155.2MB. Free memory was 105.7MB in the beginning and 101.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:04:17,844 INFO L158 Benchmark]: RCFGBuilder took 5103.45ms. Allocated memory was 155.2MB in the beginning and 314.6MB in the end (delta: 159.4MB). Free memory was 101.5MB in the beginning and 137.4MB in the end (delta: -36.0MB). Peak memory consumption was 176.5MB. Max. memory is 16.1GB. [2022-11-16 12:04:17,844 INFO L158 Benchmark]: TraceAbstraction took 1082.73ms. Allocated memory is still 314.6MB. Free memory was 136.4MB in the beginning and 270.3MB in the end (delta: -133.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:04:17,845 INFO L158 Benchmark]: Witness Printer took 6.21ms. Allocated memory is still 314.6MB. Free memory is still 269.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:04:17,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 66.0MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 571.15ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 113.5MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.97ms. Allocated memory is still 155.2MB. Free memory was 113.5MB in the beginning and 105.7MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.41ms. Allocated memory is still 155.2MB. Free memory was 105.7MB in the beginning and 101.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 5103.45ms. Allocated memory was 155.2MB in the beginning and 314.6MB in the end (delta: 159.4MB). Free memory was 101.5MB in the beginning and 137.4MB in the end (delta: -36.0MB). Peak memory consumption was 176.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1082.73ms. Allocated memory is still 314.6MB. Free memory was 136.4MB in the beginning and 270.3MB in the end (delta: -133.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.21ms. Allocated memory is still 314.6MB. Free memory is still 269.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 79, overapproximation of bitwiseAnd at line 84. 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_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 3); [L29] const SORT_31 msb_SORT_31 = (SORT_31)1 << (3 - 1); [L31] const SORT_1 var_3 = 0; [L32] const SORT_1 var_9 = 1; [L33] const SORT_31 var_37 = 0; [L34] const SORT_31 var_226 = 1; [L36] SORT_1 input_2; [L38] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L40] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L41] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L42] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L43] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L44] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L45] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_31 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_31; [L49] SORT_31 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_31; [L50] SORT_31 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_31; [L51] SORT_31 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_31; [L53] SORT_1 init_5_arg_1 = var_3; [L54] state_4 = init_5_arg_1 [L55] SORT_1 init_14_arg_1 = var_9; [L56] state_13 = init_14_arg_1 [L57] SORT_1 init_16_arg_1 = var_3; [L58] state_15 = init_16_arg_1 [L59] SORT_1 init_18_arg_1 = var_3; [L60] state_17 = init_18_arg_1 [L61] SORT_1 init_20_arg_1 = var_3; [L62] state_19 = init_20_arg_1 [L63] SORT_1 init_22_arg_1 = var_3; [L64] state_21 = init_22_arg_1 [L65] SORT_1 init_24_arg_1 = var_3; [L66] state_23 = init_24_arg_1 [L67] SORT_1 init_26_arg_1 = var_3; [L68] state_25 = init_26_arg_1 [L69] SORT_1 init_28_arg_1 = var_3; [L70] state_27 = init_28_arg_1 [L71] SORT_1 init_30_arg_1 = var_9; [L72] state_29 = init_30_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=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=1, init_5_arg_1=0, mask_SORT_1=1, mask_SORT_31=7, msb_SORT_1=1, msb_SORT_31=4, state_13=1, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=1, state_32=0, state_33=0, state_34=0, state_35=3, state_4=0, var_226=1, var_3=0, var_37=0, var_9=1] [L75] input_2 = __VERIFIER_nondet_uchar() [L78] SORT_1 var_6_arg_0 = state_4; [L79] SORT_1 var_6 = ~var_6_arg_0; [L80] SORT_1 var_10_arg_0 = var_6; [L81] SORT_1 var_10 = ~var_10_arg_0; [L82] SORT_1 var_11_arg_0 = var_9; [L83] SORT_1 var_11_arg_1 = var_10; [L84] SORT_1 var_11 = var_11_arg_0 & var_11_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=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=1, init_5_arg_1=0, input_2=3, mask_SORT_1=1, mask_SORT_31=7, msb_SORT_1=1, msb_SORT_31=4, state_13=1, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=1, state_32=0, state_33=0, state_34=0, state_35=3, state_4=0, var_10=2, var_10_arg_0=4, var_11=1, var_11_arg_0=1, var_11_arg_1=2, var_226=1, var_3=0, var_37=0, var_6=4, var_6_arg_0=0, var_9=1] [L85] var_11 = var_11 & mask_SORT_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=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=1, init_5_arg_1=0, input_2=3, mask_SORT_1=1, mask_SORT_31=7, msb_SORT_1=1, msb_SORT_31=4, state_13=1, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=1, state_32=0, state_33=0, state_34=0, state_35=3, state_4=0, var_10=2, var_10_arg_0=4, var_11=1, var_11_arg_0=1, var_11_arg_1=2, var_226=1, var_3=0, var_37=0, var_6=4, var_6_arg_0=0, var_9=1] [L86] SORT_1 bad_12_arg_0 = var_11; [L87] CALL __VERIFIER_assert(!(bad_12_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 55 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 31 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-11-16 12:04:17,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8 --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 30c8d3298019488dcd7196bee2bc8b40464790a0108d12e9fe9926ac2a94dbfd --- 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-e04fb08 [2022-11-16 12:04:20,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:04:20,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:04:20,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:04:20,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:04:20,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:04:20,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:04:20,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:04:20,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:04:20,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:04:20,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:04:20,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:04:20,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:04:20,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:04:20,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:04:20,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:04:20,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:04:20,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:04:20,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:04:20,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:04:20,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:04:20,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:04:20,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:04:20,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:04:20,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:04:20,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:04:20,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:04:20,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:04:20,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:04:20,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:04:20,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:04:20,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:04:20,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:04:20,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:04:20,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:04:20,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:04:20,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:04:20,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:04:20,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:04:20,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:04:20,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:04:20,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 12:04:20,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:04:20,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:04:20,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:04:20,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:04:20,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:04:20,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:04:20,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:04:20,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:04:20,485 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:04:20,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:04:20,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:04:20,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:04:20,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:04:20,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:04:20,488 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:04:20,488 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:04:20,489 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:04:20,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:04:20,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:04:20,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:04:20,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:04:20,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:04:20,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:04:20,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:04:20,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:04:20,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:04:20,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:04:20,492 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:04:20,492 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:04:20,492 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:04:20,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:04:20,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:04:20,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:04:20,493 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30c8d3298019488dcd7196bee2bc8b40464790a0108d12e9fe9926ac2a94dbfd [2022-11-16 12:04:20,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:04:20,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:04:20,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:04:20,970 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:04:20,973 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:04:20,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c [2022-11-16 12:04:21,050 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data/32800567a/ba23f39beeda4f55a8dd0c1c0df4517f/FLAGe3c0e858f [2022-11-16 12:04:21,720 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:04:21,721 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c [2022-11-16 12:04:21,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data/32800567a/ba23f39beeda4f55a8dd0c1c0df4517f/FLAGe3c0e858f [2022-11-16 12:04:21,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/data/32800567a/ba23f39beeda4f55a8dd0c1c0df4517f [2022-11-16 12:04:21,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:04:21,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:04:21,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:04:21,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:04:21,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:04:21,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:04:21" (1/1) ... [2022-11-16 12:04:21,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e2d124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:21, skipping insertion in model container [2022-11-16 12:04:21,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:04:21" (1/1) ... [2022-11-16 12:04:22,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:04:22,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:04:22,180 WARN L229 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_dd1ce326-e653-4fa8-939d-66e6a9310755/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c[1107,1120] [2022-11-16 12:04:22,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:04:22,400 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:04:22,412 WARN L229 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_dd1ce326-e653-4fa8-939d-66e6a9310755/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c[1107,1120] [2022-11-16 12:04:22,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:04:22,568 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:04:22,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22 WrapperNode [2022-11-16 12:04:22,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:04:22,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:04:22,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:04:22,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:04:22,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,683 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 631 [2022-11-16 12:04:22,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:04:22,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:04:22,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:04:22,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:04:22,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:04:22,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:04:22,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:04:22,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:04:22,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (1/1) ... [2022-11-16 12:04:22,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:04:22,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:04:22,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:04:22,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:04:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:04:22,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:04:23,212 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:04:23,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:04:24,193 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:04:24,202 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:04:24,203 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:04:24,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:24 BoogieIcfgContainer [2022-11-16 12:04:24,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:04:24,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:04:24,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:04:24,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:04:24,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:04:21" (1/3) ... [2022-11-16 12:04:24,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fabb0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:24, skipping insertion in model container [2022-11-16 12:04:24,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:04:22" (2/3) ... [2022-11-16 12:04:24,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fabb0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:24, skipping insertion in model container [2022-11-16 12:04:24,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:24" (3/3) ... [2022-11-16 12:04:24,218 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2001.c [2022-11-16 12:04:24,242 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:04:24,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:04:24,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:04:24,317 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;@7ee737d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:04:24,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:04:24,322 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) [2022-11-16 12:04:24,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:04:24,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:24,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 12:04:24,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:24,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:24,338 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 12:04:24,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:04:24,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554281759] [2022-11-16 12:04:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:24,351 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 [2022-11-16 12:04:24,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:04:24,353 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:04:24,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:24,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:04:24,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:24,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:04:24,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:04:24,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554281759] [2022-11-16 12:04:24,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554281759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:24,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:24,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:04:24,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808886100] [2022-11-16 12:04:24,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:24,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:04:24,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:04:24,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:04:24,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:04:24,875 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) [2022-11-16 12:04:25,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:25,000 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 12:04:25,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:04:25,005 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 [2022-11-16 12:04:25,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:25,015 INFO L225 Difference]: With dead ends: 20 [2022-11-16 12:04:25,018 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 12:04:25,022 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 [2022-11-16 12:04:25,026 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:25,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:04:25,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 12:04:25,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 12:04:25,063 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) [2022-11-16 12:04:25,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 12:04:25,065 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 12:04:25,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:25,066 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 12:04:25,066 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) [2022-11-16 12:04:25,066 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 12:04:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:04:25,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:25,067 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:25,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:25,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:25,279 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:25,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:25,280 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 12:04:25,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:04:25,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618264227] [2022-11-16 12:04:25,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:25,284 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 [2022-11-16 12:04:25,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:04:25,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:04:25,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:25,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-16 12:04:25,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:25,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:04:26,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:26,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:04:26,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618264227] [2022-11-16 12:04:26,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618264227] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:04:26,175 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:04:26,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 12:04:26,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701991500] [2022-11-16 12:04:26,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:04:26,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:04:26,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:04:26,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:04:26,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:04:26,179 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) [2022-11-16 12:04:26,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:26,291 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 12:04:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:04:26,293 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 [2022-11-16 12:04:26,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:26,294 INFO L225 Difference]: With dead ends: 16 [2022-11-16 12:04:26,294 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 12:04:26,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:04:26,296 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:26,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 7 Unchecked, 0.1s Time] [2022-11-16 12:04:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 12:04:26,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 12:04:26,300 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) [2022-11-16 12:04:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 12:04:26,301 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 12:04:26,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:26,302 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 12:04:26,302 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) [2022-11-16 12:04:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 12:04:26,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:04:26,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:26,303 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 12:04:26,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:26,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:26,524 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:26,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:26,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 12:04:26,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:04:26,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535938284] [2022-11-16 12:04:26,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:04:26,527 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 [2022-11-16 12:04:26,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:04:26,529 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:04:26,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:27,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:04:27,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:04:27,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 124 conjunts are in the unsatisfiable core [2022-11-16 12:04:27,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:27,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:04:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:30,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:04:30,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535938284] [2022-11-16 12:04:30,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535938284] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:04:30,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:04:30,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-16 12:04:30,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723430918] [2022-11-16 12:04:30,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:04:30,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:04:30,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:04:30,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:04:30,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:04:30,013 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) [2022-11-16 12:04:30,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:30,256 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-16 12:04:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:04:30,257 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 [2022-11-16 12:04:30,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:30,258 INFO L225 Difference]: With dead ends: 19 [2022-11-16 12:04:30,258 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 12:04:30,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:04:30,260 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:30,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 20 Unchecked, 0.1s Time] [2022-11-16 12:04:30,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 12:04:30,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 12:04:30,266 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) [2022-11-16 12:04:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 12:04:30,266 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 12:04:30,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:30,267 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 12:04:30,267 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) [2022-11-16 12:04:30,267 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 12:04:30,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 12:04:30,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:30,268 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 12:04:30,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:30,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:30,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:30,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:30,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 12:04:30,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:04:30,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838508996] [2022-11-16 12:04:30,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:04:30,492 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 [2022-11-16 12:04:30,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:04:30,493 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:04:30,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:04:31,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-16 12:04:31,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:04:31,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 230 conjunts are in the unsatisfiable core [2022-11-16 12:04:31,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:04:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:59,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:05:15,830 WARN L233 SmtUtils]: Spent 8.62s on a formula simplification. DAG size of input: 445 DAG size of output: 428 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:05:38,301 WARN L233 SmtUtils]: Spent 13.42s on a formula simplification that was a NOOP. DAG size: 646 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:05:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:39,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:05:39,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838508996] [2022-11-16 12:05:39,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838508996] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:05:39,623 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:05:39,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-16 12:05:39,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855374405] [2022-11-16 12:05:39,624 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:05:39,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:05:39,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:05:39,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:05:39,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=196, Unknown=4, NotChecked=0, Total=240 [2022-11-16 12:05:39,628 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) [2022-11-16 12:05:40,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:40,126 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-16 12:05:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:05:40,126 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 [2022-11-16 12:05:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:40,127 INFO L225 Difference]: With dead ends: 22 [2022-11-16 12:05:40,127 INFO L226 Difference]: Without dead ends: 20 [2022-11-16 12:05:40,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 61.4s TimeCoverageRelationStatistics Valid=50, Invalid=252, Unknown=4, NotChecked=0, Total=306 [2022-11-16 12:05:40,128 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:40,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 53 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 39 Unchecked, 0.1s Time] [2022-11-16 12:05:40,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-16 12:05:40,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-16 12:05:40,138 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) [2022-11-16 12:05:40,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-16 12:05:40,139 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-16 12:05:40,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:40,139 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-16 12:05:40,140 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) [2022-11-16 12:05:40,140 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-16 12:05:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 12:05:40,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:40,140 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-16 12:05:40,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:05:40,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:05:40,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:05:40,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:40,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-16 12:05:40,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:05:40,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373717019] [2022-11-16 12:05:40,353 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:05:40,353 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 [2022-11-16 12:05:40,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:05:40,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:05:40,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:05:41,119 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:05:41,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:41,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 2260 conjuncts, 407 conjunts are in the unsatisfiable core [2022-11-16 12:05:41,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:44,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:08:10,949 WARN L233 SmtUtils]: Spent 2.15m on a formula simplification. DAG size of input: 986 DAG size of output: 490 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:11:14,038 WARN L233 SmtUtils]: Spent 2.87m on a formula simplification. DAG size of input: 1017 DAG size of output: 668 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:11:14,541 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:14,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:11:14,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373717019] [2022-11-16 12:11:14,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373717019] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:11:14,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:11:14,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-16 12:11:14,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368561634] [2022-11-16 12:11:14,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:11:14,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 12:11:14,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:11:14,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 12:11:14,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=132, Unknown=1, NotChecked=0, Total=182 [2022-11-16 12:11:14,544 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2022-11-16 12:11:15,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:15,134 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2022-11-16 12:11:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:11:15,135 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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 17 [2022-11-16 12:11:15,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:15,136 INFO L225 Difference]: With dead ends: 23 [2022-11-16 12:11:15,136 INFO L226 Difference]: Without dead ends: 21 [2022-11-16 12:11:15,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 309.9s TimeCoverageRelationStatistics Valid=87, Invalid=218, Unknown=1, NotChecked=0, Total=306 [2022-11-16 12:11:15,137 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:15,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 22 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 19 Unchecked, 0.1s Time] [2022-11-16 12:11:15,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-16 12:11:15,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-16 12:11:15,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 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) [2022-11-16 12:11:15,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-16 12:11:15,150 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 17 [2022-11-16 12:11:15,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:15,150 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-16 12:11:15,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2022-11-16 12:11:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-16 12:11:15,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 12:11:15,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:15,152 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2022-11-16 12:11:15,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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)] Ended with exit code 0 [2022-11-16 12:11:15,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 12:11:15,363 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:11:15,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:15,364 INFO L85 PathProgramCache]: Analyzing trace with hash -826954269, now seen corresponding path program 5 times [2022-11-16 12:11:15,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:11:15,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038915739] [2022-11-16 12:11:15,366 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:11:15,366 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 [2022-11-16 12:11:15,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:11:15,368 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 12:11:15,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd1ce326-e653-4fa8-939d-66e6a9310755/bin/uautomizer-tPACEb0tL8/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 (7)] Waiting until timeout for monitored process [2022-11-16 12:11:16,351 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-16 12:11:16,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:11:16,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 2813 conjuncts, 485 conjunts are in the unsatisfiable core [2022-11-16 12:11:16,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:12:09,303 WARN L233 SmtUtils]: Spent 38.70s on a formula simplification. DAG size of input: 343 DAG size of output: 328 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:12:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:29,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:12:55,636 WARN L233 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 616 DAG size of output: 499 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:14:27,621 WARN L233 SmtUtils]: Spent 57.32s on a formula simplification. DAG size of input: 1059 DAG size of output: 851 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:15:16,496 WARN L233 SmtUtils]: Spent 46.26s on a formula simplification. DAG size of input: 848 DAG size of output: 837 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:15:36,073 WARN L233 SmtUtils]: Spent 13.17s on a formula simplification. DAG size of input: 840 DAG size of output: 684 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:16:12,791 WARN L233 SmtUtils]: Spent 17.33s on a formula simplification. DAG size of input: 1201 DAG size of output: 822 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:16:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:16:21,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:16:21,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038915739] [2022-11-16 12:16:21,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038915739] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:16:21,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:16:21,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2022-11-16 12:16:21,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164034756] [2022-11-16 12:16:21,931 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:16:21,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-16 12:16:21,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:16:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-16 12:16:21,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=840, Unknown=15, NotChecked=0, Total=992 [2022-11-16 12:16:21,933 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 32 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 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) [2022-11-16 12:17:45,554 WARN L233 SmtUtils]: Spent 36.77s on a formula simplification. DAG size of input: 350 DAG size of output: 349 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:18:30,065 WARN L233 SmtUtils]: Spent 35.89s on a formula simplification. DAG size of input: 381 DAG size of output: 351 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)