./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ae120e442d3333a3829560b2dc4c79b941b2f5347f398389c9ef7ff85802ce4e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:29:27,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:27,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:27,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:27,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:27,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:27,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:27,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:27,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:27,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:27,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:27,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:27,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:27,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:27,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:27,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:27,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:27,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:27,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:27,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:27,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:27,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:27,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:27,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:27,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:27,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:27,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:27,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:27,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:27,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:27,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:27,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:27,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:27,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:27,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:27,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:27,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:27,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:27,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:27,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:27,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:27,611 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:29:27,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:27,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:27,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:27,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:27,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:27,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:27,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:27,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:27,643 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:27,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:27,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:29:27,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:27,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:27,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:27,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:27,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:27,646 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:27,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:27,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:27,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:27,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:27,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:27,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:27,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:27,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:27,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:29:27,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:29:27,650 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:27,651 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:27,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:27,652 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_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae120e442d3333a3829560b2dc4c79b941b2f5347f398389c9ef7ff85802ce4e [2022-11-20 09:29:27,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:27,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:27,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:28,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:28,001 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:28,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c [2022-11-20 09:29:31,119 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:31,440 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:31,440 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c [2022-11-20 09:29:31,453 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/data/3dd7e1d12/80b76064b6ca4666a5ffbb18cf05b43d/FLAG4f3df2481 [2022-11-20 09:29:31,471 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/data/3dd7e1d12/80b76064b6ca4666a5ffbb18cf05b43d [2022-11-20 09:29:31,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:31,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:31,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:31,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:31,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:31,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e39b49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:31, skipping insertion in model container [2022-11-20 09:29:31,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:31" (1/1) ... [2022-11-20 09:29:31,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:31,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:31,721 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c[1107,1120] [2022-11-20 09:29:31,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:31,965 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:31,977 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c[1107,1120] [2022-11-20 09:29:32,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:32,122 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:32,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32 WrapperNode [2022-11-20 09:29:32,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:32,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:32,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:32,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:32,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,248 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 978 [2022-11-20 09:29:32,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:32,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:32,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:32,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:32,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:32,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:32,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:32,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:32,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (1/1) ... [2022-11-20 09:29:32,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:32,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:32,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:32,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:32,781 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:32,783 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:39,412 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:39,419 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:39,419 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:29:39,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:39 BoogieIcfgContainer [2022-11-20 09:29:39,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:39,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:29:39,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:29:39,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:29:39,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:29:31" (1/3) ... [2022-11-20 09:29:39,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619d467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:39, skipping insertion in model container [2022-11-20 09:29:39,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:32" (2/3) ... [2022-11-20 09:29:39,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619d467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:39, skipping insertion in model container [2022-11-20 09:29:39,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:39" (3/3) ... [2022-11-20 09:29:39,444 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.miim.c [2022-11-20 09:29:39,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:29:39,468 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:29:39,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:29:39,537 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;@5b661c86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:29:39,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:29:39,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 09:29:39,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:39,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 09:29:39,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:39,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:39,559 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 09:29:39,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:39,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601782423] [2022-11-20 09:29:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:39,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:40,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:29:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:40,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:29:40,270 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:29:40,271 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 09:29:40,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:29:40,283 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 09:29:40,288 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:29:40,343 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 09:29:40,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:29:40 BoogieIcfgContainer [2022-11-20 09:29:40,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:29:40,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:29:40,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:29:40,371 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:29:40,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:39" (3/4) ... [2022-11-20 09:29:40,379 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:29:40,379 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:29:40,381 INFO L158 Benchmark]: Toolchain (without parser) took 8904.63ms. Allocated memory was 157.3MB in the beginning and 362.8MB in the end (delta: 205.5MB). Free memory was 125.4MB in the beginning and 122.3MB in the end (delta: 3.1MB). Peak memory consumption was 209.4MB. Max. memory is 16.1GB. [2022-11-20 09:29:40,382 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 88.6MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:40,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.85ms. Allocated memory is still 157.3MB. Free memory was 125.4MB in the beginning and 94.7MB in the end (delta: 30.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-20 09:29:40,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.28ms. Allocated memory is still 157.3MB. Free memory was 94.7MB in the beginning and 86.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 09:29:40,390 INFO L158 Benchmark]: Boogie Preprocessor took 112.00ms. Allocated memory is still 157.3MB. Free memory was 86.4MB in the beginning and 81.3MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 09:29:40,391 INFO L158 Benchmark]: RCFGBuilder took 7048.07ms. Allocated memory was 157.3MB in the beginning and 362.8MB in the end (delta: 205.5MB). Free memory was 81.3MB in the beginning and 177.8MB in the end (delta: -96.5MB). Peak memory consumption was 185.3MB. Max. memory is 16.1GB. [2022-11-20 09:29:40,392 INFO L158 Benchmark]: TraceAbstraction took 944.47ms. Allocated memory is still 362.8MB. Free memory was 176.8MB in the beginning and 123.3MB in the end (delta: 53.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-20 09:29:40,393 INFO L158 Benchmark]: Witness Printer took 8.97ms. Allocated memory is still 362.8MB. Free memory was 123.3MB in the beginning and 122.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:40,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 88.6MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.85ms. Allocated memory is still 157.3MB. Free memory was 125.4MB in the beginning and 94.7MB in the end (delta: 30.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.28ms. Allocated memory is still 157.3MB. Free memory was 94.7MB in the beginning and 86.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.00ms. Allocated memory is still 157.3MB. Free memory was 86.4MB in the beginning and 81.3MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 7048.07ms. Allocated memory was 157.3MB in the beginning and 362.8MB in the end (delta: 205.5MB). Free memory was 81.3MB in the beginning and 177.8MB in the end (delta: -96.5MB). Peak memory consumption was 185.3MB. Max. memory is 16.1GB. * TraceAbstraction took 944.47ms. Allocated memory is still 362.8MB. Free memory was 176.8MB in the beginning and 123.3MB in the end (delta: 53.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Witness Printer took 8.97ms. Allocated memory is still 362.8MB. Free memory was 123.3MB in the beginning and 122.3MB in the end (delta: 1.0MB). 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 295, overapproximation of bitwiseOr at line 298, overapproximation of bitwiseAnd at line 222. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 8); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (8 - 1); [L34] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 5); [L35] const SORT_7 msb_SORT_7 = (SORT_7)1 << (5 - 1); [L37] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 32); [L38] const SORT_20 msb_SORT_20 = (SORT_20)1 << (32 - 1); [L40] const SORT_51 mask_SORT_51 = (SORT_51)-1 >> (sizeof(SORT_51) * 8 - 6); [L41] const SORT_51 msb_SORT_51 = (SORT_51)1 << (6 - 1); [L43] const SORT_66 mask_SORT_66 = (SORT_66)-1 >> (sizeof(SORT_66) * 8 - 25); [L44] const SORT_66 msb_SORT_66 = (SORT_66)1 << (25 - 1); [L46] const SORT_68 mask_SORT_68 = (SORT_68)-1 >> (sizeof(SORT_68) * 8 - 7); [L47] const SORT_68 msb_SORT_68 = (SORT_68)1 << (7 - 1); [L49] const SORT_88 mask_SORT_88 = (SORT_88)-1 >> (sizeof(SORT_88) * 8 - 2); [L50] const SORT_88 msb_SORT_88 = (SORT_88)1 << (2 - 1); [L52] const SORT_126 mask_SORT_126 = (SORT_126)-1 >> (sizeof(SORT_126) * 8 - 3); [L53] const SORT_126 msb_SORT_126 = (SORT_126)1 << (3 - 1); [L55] const SORT_1 var_17 = 0; [L56] const SORT_20 var_22 = 1; [L57] const SORT_1 var_47 = 1; [L58] const SORT_51 var_52 = 0; [L59] const SORT_5 var_56 = 0; [L60] const SORT_5 var_61 = 2; [L61] const SORT_20 var_63 = 2; [L62] const SORT_66 var_67 = 0; [L63] const SORT_20 var_116 = 0; [L64] const SORT_51 var_254 = 33; [L65] const SORT_5 var_273 = 1; [L67] SORT_1 input_2; [L68] SORT_3 input_4; [L69] SORT_5 input_6; [L70] SORT_7 input_8; [L71] SORT_1 input_9; [L72] SORT_1 input_10; [L73] SORT_1 input_11; [L74] SORT_1 input_12; [L75] SORT_7 input_13; [L76] SORT_1 input_14; [L77] SORT_1 input_15; [L78] SORT_1 input_16; [L79] SORT_1 input_80; [L80] SORT_88 input_89; [L81] SORT_1 input_91; [L82] SORT_1 input_93; [L83] SORT_1 input_95; [L84] SORT_1 input_99; [L85] SORT_1 input_103; [L86] SORT_1 input_105; [L87] SORT_1 input_109; [L88] SORT_1 input_138; [L89] SORT_1 input_144; [L90] SORT_1 input_153; [L91] SORT_1 input_155; [L92] SORT_1 input_157; [L93] SORT_7 input_166; [L94] SORT_1 input_168; [L95] SORT_3 input_170; [L96] SORT_5 input_172; [L97] SORT_1 input_183; [L98] SORT_1 input_185; [L99] SORT_1 input_198; [L100] SORT_1 input_200; [L101] SORT_1 input_203; [L102] SORT_1 input_210; [L103] SORT_1 input_212; [L104] SORT_1 input_215; [L105] SORT_1 input_220; [L106] SORT_1 input_228; [L107] SORT_1 input_229; [L108] SORT_1 input_231; [L109] SORT_1 input_234; [L110] SORT_1 input_238; [L111] SORT_1 input_241; [L112] SORT_1 input_246; [L113] SORT_51 input_250; [L114] SORT_51 input_251; [L115] SORT_51 input_258; [L116] SORT_51 input_262; [L117] SORT_51 input_266; [L118] SORT_51 input_269; [L119] SORT_5 input_276; [L120] SORT_1 input_283; [L121] SORT_1 input_288; [L122] SORT_1 input_293; [L123] SORT_1 input_300; [L124] SORT_1 input_308; [L125] SORT_1 input_312; [L126] SORT_1 input_313; [L127] SORT_1 input_315; [L128] SORT_1 input_318; [L129] SORT_1 input_320; [L130] SORT_1 input_321; [L131] SORT_1 input_326; [L132] SORT_1 input_330; [L133] SORT_1 input_333; [L134] SORT_1 input_338; [L135] SORT_1 input_343; [L136] SORT_1 input_352; [L137] SORT_1 input_357; [L139] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L140] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L141] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L142] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L144] SORT_1 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L145] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L146] SORT_51 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_51; [L147] SORT_5 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L148] SORT_1 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L149] SORT_1 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L150] SORT_1 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L151] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L152] SORT_1 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L153] SORT_1 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L154] SORT_1 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L155] SORT_1 state_140 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L156] SORT_1 state_142 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L157] SORT_1 state_146 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L158] SORT_1 state_148 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L159] SORT_1 state_174 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L160] SORT_1 state_176 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L161] SORT_1 state_187 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L162] SORT_1 state_189 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L164] SORT_1 init_19_arg_1 = var_17; [L165] state_18 = init_19_arg_1 [L166] SORT_1 init_26_arg_1 = var_17; [L167] state_25 = init_26_arg_1 [L168] SORT_1 init_28_arg_1 = var_17; [L169] state_27 = init_28_arg_1 [L170] SORT_1 init_31_arg_1 = var_17; [L171] state_30 = init_31_arg_1 [L172] SORT_1 init_34_arg_1 = var_17; [L173] state_33 = init_34_arg_1 [L174] SORT_1 init_37_arg_1 = var_17; [L175] state_36 = init_37_arg_1 [L176] SORT_1 init_40_arg_1 = var_17; [L177] state_39 = init_40_arg_1 [L178] SORT_51 init_54_arg_1 = var_52; [L179] state_53 = init_54_arg_1 [L180] SORT_5 init_58_arg_1 = var_56; [L181] state_57 = init_58_arg_1 [L182] SORT_1 init_75_arg_1 = var_17; [L183] state_74 = init_75_arg_1 [L184] SORT_1 init_85_arg_1 = var_17; [L185] state_84 = init_85_arg_1 [L186] SORT_1 init_87_arg_1 = var_17; [L187] state_86 = init_87_arg_1 [L188] SORT_1 init_98_arg_1 = var_17; [L189] state_97 = init_98_arg_1 [L190] SORT_1 init_102_arg_1 = var_17; [L191] state_101 = init_102_arg_1 [L192] SORT_1 init_108_arg_1 = var_17; [L193] state_107 = init_108_arg_1 [L194] SORT_1 init_112_arg_1 = var_17; [L195] state_111 = init_112_arg_1 [L196] SORT_1 init_141_arg_1 = var_17; [L197] state_140 = init_141_arg_1 [L198] SORT_1 init_143_arg_1 = var_17; [L199] state_142 = init_143_arg_1 [L200] SORT_1 init_147_arg_1 = var_17; [L201] state_146 = init_147_arg_1 [L202] SORT_1 init_149_arg_1 = var_17; [L203] state_148 = init_149_arg_1 [L204] SORT_1 init_175_arg_1 = var_17; [L205] state_174 = init_175_arg_1 [L206] SORT_1 init_177_arg_1 = var_17; [L207] state_176 = init_177_arg_1 [L208] SORT_1 init_188_arg_1 = var_17; [L209] state_187 = init_188_arg_1 [L210] SORT_1 init_190_arg_1 = var_17; [L211] state_189 = init_190_arg_1 VAL [init_102_arg_1=0, init_108_arg_1=0, init_112_arg_1=0, init_141_arg_1=0, init_143_arg_1=0, init_147_arg_1=0, init_149_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_188_arg_1=0, init_190_arg_1=0, init_19_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_37_arg_1=0, init_40_arg_1=0, init_54_arg_1=0, init_58_arg_1=0, init_75_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_98_arg_1=0, mask_SORT_1=1, mask_SORT_126=7, mask_SORT_20=4294967295, mask_SORT_3=65535, mask_SORT_5=255, mask_SORT_51=63, mask_SORT_66=4294967295, mask_SORT_68=127, mask_SORT_7=31, mask_SORT_88=3, msb_SORT_1=1, msb_SORT_126=4, msb_SORT_20=2147483648, msb_SORT_3=32768, msb_SORT_5=128, msb_SORT_51=32, msb_SORT_66=16777216, msb_SORT_68=64, msb_SORT_7=16, msb_SORT_88=2, state_101=0, state_107=0, state_111=0, state_140=0, state_142=0, state_146=0, state_148=0, state_174=0, state_176=0, state_18=0, state_187=0, state_189=0, state_25=0, state_27=0, state_30=0, state_33=0, state_36=0, state_39=0, state_53=0, state_57=0, state_74=0, state_84=0, state_86=0, state_97=0, var_116=0, var_17=0, var_22=1, var_254=33, var_273=1, var_47=1, var_52=0, var_56=0, var_61=2, var_63=2, var_67=0] [L214] input_2 = __VERIFIER_nondet_uchar() [L215] input_4 = __VERIFIER_nondet_ushort() [L216] input_6 = __VERIFIER_nondet_uchar() [L217] input_8 = __VERIFIER_nondet_uchar() [L218] input_9 = __VERIFIER_nondet_uchar() [L219] input_10 = __VERIFIER_nondet_uchar() [L220] input_11 = __VERIFIER_nondet_uchar() [L221] input_12 = __VERIFIER_nondet_uchar() [L222] input_12 = input_12 & mask_SORT_1 [L223] input_13 = __VERIFIER_nondet_uchar() [L224] input_14 = __VERIFIER_nondet_uchar() [L225] input_15 = __VERIFIER_nondet_uchar() [L226] input_16 = __VERIFIER_nondet_uchar() [L227] input_80 = __VERIFIER_nondet_uchar() [L228] input_89 = __VERIFIER_nondet_uchar() [L229] input_91 = __VERIFIER_nondet_uchar() [L230] input_93 = __VERIFIER_nondet_uchar() [L231] input_95 = __VERIFIER_nondet_uchar() [L232] input_99 = __VERIFIER_nondet_uchar() [L233] input_103 = __VERIFIER_nondet_uchar() [L234] input_105 = __VERIFIER_nondet_uchar() [L235] input_109 = __VERIFIER_nondet_uchar() [L236] input_138 = __VERIFIER_nondet_uchar() [L237] input_144 = __VERIFIER_nondet_uchar() [L238] input_153 = __VERIFIER_nondet_uchar() [L239] input_155 = __VERIFIER_nondet_uchar() [L240] input_157 = __VERIFIER_nondet_uchar() [L241] input_166 = __VERIFIER_nondet_uchar() [L242] input_168 = __VERIFIER_nondet_uchar() [L243] input_170 = __VERIFIER_nondet_ushort() [L244] input_172 = __VERIFIER_nondet_uchar() [L245] input_183 = __VERIFIER_nondet_uchar() [L246] input_185 = __VERIFIER_nondet_uchar() [L247] input_198 = __VERIFIER_nondet_uchar() [L248] input_200 = __VERIFIER_nondet_uchar() [L249] input_203 = __VERIFIER_nondet_uchar() [L250] input_210 = __VERIFIER_nondet_uchar() [L251] input_212 = __VERIFIER_nondet_uchar() [L252] input_215 = __VERIFIER_nondet_uchar() [L253] input_220 = __VERIFIER_nondet_uchar() [L254] input_228 = __VERIFIER_nondet_uchar() [L255] input_229 = __VERIFIER_nondet_uchar() [L256] input_231 = __VERIFIER_nondet_uchar() [L257] input_234 = __VERIFIER_nondet_uchar() [L258] input_238 = __VERIFIER_nondet_uchar() [L259] input_241 = __VERIFIER_nondet_uchar() [L260] input_246 = __VERIFIER_nondet_uchar() [L261] input_250 = __VERIFIER_nondet_uchar() [L262] input_251 = __VERIFIER_nondet_uchar() [L263] input_258 = __VERIFIER_nondet_uchar() [L264] input_262 = __VERIFIER_nondet_uchar() [L265] input_266 = __VERIFIER_nondet_uchar() [L266] input_269 = __VERIFIER_nondet_uchar() [L267] input_276 = __VERIFIER_nondet_uchar() [L268] input_283 = __VERIFIER_nondet_uchar() [L269] input_288 = __VERIFIER_nondet_uchar() [L270] input_293 = __VERIFIER_nondet_uchar() [L271] input_300 = __VERIFIER_nondet_uchar() [L272] input_308 = __VERIFIER_nondet_uchar() [L273] input_312 = __VERIFIER_nondet_uchar() [L274] input_313 = __VERIFIER_nondet_uchar() [L275] input_315 = __VERIFIER_nondet_uchar() [L276] input_318 = __VERIFIER_nondet_uchar() [L277] input_320 = __VERIFIER_nondet_uchar() [L278] input_321 = __VERIFIER_nondet_uchar() [L279] input_326 = __VERIFIER_nondet_uchar() [L280] input_330 = __VERIFIER_nondet_uchar() [L281] input_333 = __VERIFIER_nondet_uchar() [L282] input_338 = __VERIFIER_nondet_uchar() [L283] input_343 = __VERIFIER_nondet_uchar() [L284] input_352 = __VERIFIER_nondet_uchar() [L285] input_357 = __VERIFIER_nondet_uchar() [L288] SORT_1 var_21_arg_0 = state_18; [L289] var_21_arg_0 = var_21_arg_0 & mask_SORT_1 [L290] SORT_20 var_21 = var_21_arg_0; [L291] SORT_20 var_23_arg_0 = var_21; [L292] SORT_20 var_23_arg_1 = var_22; [L293] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L294] SORT_1 var_24_arg_0 = var_23; [L295] SORT_1 var_24 = ~var_24_arg_0; [L296] SORT_1 var_29_arg_0 = state_25; [L297] SORT_1 var_29_arg_1 = state_27; [L298] SORT_1 var_29 = var_29_arg_0 | var_29_arg_1; [L299] SORT_1 var_32_arg_0 = var_29; [L300] SORT_1 var_32_arg_1 = state_30; [L301] SORT_1 var_32 = var_32_arg_0 | var_32_arg_1; [L302] SORT_1 var_35_arg_0 = var_32; [L303] SORT_1 var_35_arg_1 = state_33; [L304] SORT_1 var_35 = var_35_arg_0 | var_35_arg_1; [L305] SORT_1 var_38_arg_0 = var_35; [L306] SORT_1 var_38_arg_1 = state_36; [L307] SORT_1 var_38 = var_38_arg_0 | var_38_arg_1; [L308] SORT_1 var_41_arg_0 = var_38; [L309] SORT_1 var_41_arg_1 = state_39; [L310] SORT_1 var_41 = var_41_arg_0 | var_41_arg_1; [L311] SORT_1 var_42_arg_0 = var_41; [L312] var_42_arg_0 = var_42_arg_0 & mask_SORT_1 [L313] SORT_20 var_42 = var_42_arg_0; [L314] SORT_20 var_43_arg_0 = var_42; [L315] SORT_20 var_43_arg_1 = var_22; [L316] SORT_1 var_43 = var_43_arg_0 == var_43_arg_1; [L317] SORT_1 var_44_arg_0 = var_24; [L318] SORT_1 var_44_arg_1 = var_43; [L319] SORT_1 var_44 = var_44_arg_0 | var_44_arg_1; [L320] SORT_1 var_48_arg_0 = var_44; [L321] SORT_1 var_48 = ~var_48_arg_0; [L322] SORT_1 var_49_arg_0 = var_47; [L323] SORT_1 var_49_arg_1 = var_48; [L324] SORT_1 var_49 = var_49_arg_0 & var_49_arg_1; [L325] var_49 = var_49 & mask_SORT_1 [L326] SORT_1 bad_50_arg_0 = var_49; [L327] CALL __VERIFIER_assert(!(bad_50_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 09:29:40,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ae120e442d3333a3829560b2dc4c79b941b2f5347f398389c9ef7ff85802ce4e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:29:42,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:42,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:43,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:43,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:43,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:43,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:43,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:43,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:43,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:43,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:43,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:43,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:43,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:43,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:43,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:43,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:43,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:43,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:43,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:43,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:43,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:43,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:43,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:43,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:43,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:43,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:43,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:43,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:43,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:43,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:43,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:43,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:43,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:43,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:43,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:43,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:43,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:43,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:43,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:43,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:43,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:29:43,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:43,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:43,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:43,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:43,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:43,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:43,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:43,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:43,140 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:43,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:43,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:43,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:43,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:43,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:43,142 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:29:43,143 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:29:43,143 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:29:43,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:43,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:43,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:43,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:43,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:43,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:43,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:43,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:43,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:43,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:43,146 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:29:43,146 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:29:43,146 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:43,146 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:43,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:43,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:29:43,147 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_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae120e442d3333a3829560b2dc4c79b941b2f5347f398389c9ef7ff85802ce4e [2022-11-20 09:29:43,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:43,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:43,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:43,582 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:43,583 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:43,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c [2022-11-20 09:29:46,624 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:46,974 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:46,975 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c [2022-11-20 09:29:46,997 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/data/f97df956a/76b226260dea4c0b81f0943d21d81f1d/FLAGe54c24927 [2022-11-20 09:29:47,010 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/data/f97df956a/76b226260dea4c0b81f0943d21d81f1d [2022-11-20 09:29:47,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:47,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:47,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:47,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:47,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:47,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:47,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f7e706a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47, skipping insertion in model container [2022-11-20 09:29:47,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:47,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:47,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:47,329 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c[1107,1120] [2022-11-20 09:29:47,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:47,669 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:47,684 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.miim.c[1107,1120] [2022-11-20 09:29:47,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:47,788 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:47,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47 WrapperNode [2022-11-20 09:29:47,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:47,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:47,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:47,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:47,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:47,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:47,925 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 978 [2022-11-20 09:29:47,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:47,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:47,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:47,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:47,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:47,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:47,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:47,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:48,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:48,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:48,044 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:48,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:48,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:48,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:48,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:48,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:48,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (1/1) ... [2022-11-20 09:29:48,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:48,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:48,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:48,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:48,525 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:48,527 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:49,494 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:49,501 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:49,502 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:29:49,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:49 BoogieIcfgContainer [2022-11-20 09:29:49,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:49,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:29:49,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:29:49,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:29:49,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:29:47" (1/3) ... [2022-11-20 09:29:49,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dfbeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:49, skipping insertion in model container [2022-11-20 09:29:49,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:47" (2/3) ... [2022-11-20 09:29:49,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dfbeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:49, skipping insertion in model container [2022-11-20 09:29:49,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:49" (3/3) ... [2022-11-20 09:29:49,513 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.miim.c [2022-11-20 09:29:49,533 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:29:49,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:29:49,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:29:49,599 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;@45df4b8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:29:49,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:29:49,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:49,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 09:29:49,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:49,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 09:29:49,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:49,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:49,618 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 09:29:49,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:49,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183466878] [2022-11-20 09:29:49,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:49,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:49,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:49,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:49,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:29:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:49,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 09:29:49,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:50,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:50,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:50,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:50,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183466878] [2022-11-20 09:29:50,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183466878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:50,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:50,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:29:50,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847150865] [2022-11-20 09:29:50,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:50,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:50,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:50,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:50,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:50,199 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:50,324 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 09:29:50,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:29:50,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 09:29:50,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:50,335 INFO L225 Difference]: With dead ends: 20 [2022-11-20 09:29:50,335 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 09:29:50,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:50,342 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 [2022-11-20 09:29:50,343 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] [2022-11-20 09:29:50,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 09:29:50,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 09:29:50,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 09:29:50,376 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 09:29:50,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:50,376 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 09:29:50,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,377 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 09:29:50,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 09:29:50,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:50,378 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:50,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:50,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:50,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:50,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:50,592 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 09:29:50,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:50,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645044902] [2022-11-20 09:29:50,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:50,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:50,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:50,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:50,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:29:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:51,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 09:29:51,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:51,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:51,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:51,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645044902] [2022-11-20 09:29:51,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645044902] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:29:51,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:29:51,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 09:29:51,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556246499] [2022-11-20 09:29:51,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:29:51,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 09:29:51,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:51,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 09:29:51,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:29:51,755 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:52,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:52,055 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 09:29:52,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 09:29:52,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 09:29:52,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:52,057 INFO L225 Difference]: With dead ends: 16 [2022-11-20 09:29:52,057 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 09:29:52,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-20 09:29:52,059 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:52,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 12 Unchecked, 0.2s Time] [2022-11-20 09:29:52,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 09:29:52,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 09:29:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:52,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 09:29:52,066 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 09:29:52,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:52,067 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 09:29:52,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 09:29:52,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:29:52,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:52,068 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 09:29:52,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:52,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:52,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:52,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:52,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 09:29:52,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:52,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091819122] [2022-11-20 09:29:52,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:29:52,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:52,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:52,291 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:52,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:29:53,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 09:29:53,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:29:53,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-20 09:29:53,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:53,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:01,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:01,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091819122] [2022-11-20 09:30:01,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091819122] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:01,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:30:01,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2022-11-20 09:30:01,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717741369] [2022-11-20 09:30:01,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:01,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:30:01,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:01,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:30:01,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=119, Unknown=3, NotChecked=0, Total=156 [2022-11-20 09:30:01,582 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 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) [2022-11-20 09:30:01,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:01,881 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-20 09:30:01,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 09:30:01,883 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 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 [2022-11-20 09:30:01,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:01,884 INFO L225 Difference]: With dead ends: 19 [2022-11-20 09:30:01,884 INFO L226 Difference]: Without dead ends: 17 [2022-11-20 09:30:01,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=51, Invalid=186, Unknown=3, NotChecked=0, Total=240 [2022-11-20 09:30:01,886 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:01,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 34 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-20 09:30:01,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-20 09:30:01,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-20 09:30:01,893 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) [2022-11-20 09:30:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-20 09:30:01,894 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-20 09:30:01,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:01,894 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-20 09:30:01,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 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) [2022-11-20 09:30:01,895 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-20 09:30:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 09:30:01,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:01,896 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-20 09:30:01,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:02,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:02,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:02,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:02,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-20 09:30:02,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:02,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771625188] [2022-11-20 09:30:02,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 09:30:02,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:02,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:02,120 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:02,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:30:03,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-20 09:30:03,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:30:03,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 2224 conjuncts, 160 conjunts are in the unsatisfiable core [2022-11-20 09:30:03,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:05,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:32:42,190 WARN L233 SmtUtils]: Spent 2.52m on a formula simplification. DAG size of input: 493 DAG size of output: 368 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 09:33:45,408 WARN L233 SmtUtils]: Spent 58.57s on a formula simplification. DAG size of input: 371 DAG size of output: 351 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 09:33:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:33:45,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:45,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771625188] [2022-11-20 09:33:45,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771625188] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:33:45,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:33:45,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 09:33:45,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939704523] [2022-11-20 09:33:45,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:33:45,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 09:33:45,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:45,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 09:33:45,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=143, Unknown=2, NotChecked=0, Total=182 [2022-11-20 09:33:45,437 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 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) [2022-11-20 09:33:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:46,114 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-20 09:33:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 09:33:46,115 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 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 [2022-11-20 09:33:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:46,116 INFO L225 Difference]: With dead ends: 22 [2022-11-20 09:33:46,116 INFO L226 Difference]: Without dead ends: 20 [2022-11-20 09:33:46,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 215.2s TimeCoverageRelationStatistics Valid=93, Invalid=285, Unknown=2, NotChecked=0, Total=380 [2022-11-20 09:33:46,118 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:46,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 33 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 22 Unchecked, 0.3s Time] [2022-11-20 09:33:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-20 09:33:46,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-20 09:33:46,125 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) [2022-11-20 09:33:46,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-20 09:33:46,126 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-20 09:33:46,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:46,127 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-20 09:33:46,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 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) [2022-11-20 09:33:46,127 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-20 09:33:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 09:33:46,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:46,128 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-20 09:33:46,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:46,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:46,339 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:46,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-20 09:33:46,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:46,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885542236] [2022-11-20 09:33:46,341 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 09:33:46,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:46,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:46,345 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:46,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688e4ca9-b2b5-4595-9338-88c8f95f25f0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:33:47,634 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 09:33:47,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:33:47,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 2901 conjuncts, 385 conjunts are in the unsatisfiable core [2022-11-20 09:33:47,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:35:25,393 WARN L233 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 387 DAG size of output: 174 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 09:35:37,785 WARN L233 SmtUtils]: Spent 12.14s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 09:35:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:35:43,736 INFO L328 TraceCheckSpWp]: Computing backward predicates...