./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8 --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 bd8a86fa4f066b15db9b2bf3d5b05fdfa163a1ceac95f1ac0dba938965cde89d --- 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-2329fc7 [2022-12-13 21:08:32,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:08:32,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:08:32,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:08:32,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:08:32,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:08:32,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:08:32,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:08:32,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:08:32,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:08:32,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:08:32,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:08:32,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:08:32,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:08:32,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:08:32,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:08:32,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:08:32,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:08:32,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:08:32,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:08:32,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:08:32,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:08:32,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:08:32,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:08:32,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:08:32,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:08:32,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:08:32,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:08:32,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:08:32,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:08:32,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:08:32,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:08:32,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:08:32,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:08:32,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:08:32,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:08:32,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:08:32,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:08:32,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:08:32,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:08:32,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:08:32,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 21:08:32,650 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:08:32,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:08:32,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:08:32,651 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:08:32,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:08:32,652 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:08:32,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:08:32,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:08:32,653 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:08:32,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:08:32,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:08:32,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:08:32,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:08:32,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:08:32,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:08:32,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:08:32,654 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:08:32,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:08:32,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:08:32,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:08:32,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:08:32,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:08:32,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:08:32,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:08:32,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:08:32,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:08:32,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:08:32,656 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:08:32,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:08:32,657 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:08:32,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:08:32,657 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:08:32,657 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd8a86fa4f066b15db9b2bf3d5b05fdfa163a1ceac95f1ac0dba938965cde89d [2022-12-13 21:08:32,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:08:32,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:08:32,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:08:32,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:08:32,851 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:08:32,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c [2022-12-13 21:08:35,480 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:08:35,632 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:08:35,632 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c [2022-12-13 21:08:35,638 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/data/f4cc6ec91/3a90745b59bd4b8a898e4b059e6cfb6b/FLAGb600005a0 [2022-12-13 21:08:35,649 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/data/f4cc6ec91/3a90745b59bd4b8a898e4b059e6cfb6b [2022-12-13 21:08:35,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:08:35,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:08:35,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:08:35,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:08:35,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:08:35,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eac2ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35, skipping insertion in model container [2022-12-13 21:08:35,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:08:35,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:08:35,802 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_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c[1107,1120] [2022-12-13 21:08:35,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:08:35,847 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:08:35,858 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_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c[1107,1120] [2022-12-13 21:08:35,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:08:35,884 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:08:35,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35 WrapperNode [2022-12-13 21:08:35,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:08:35,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:08:35,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:08:35,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:08:35,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,919 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2022-12-13 21:08:35,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:08:35,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:08:35,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:08:35,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:08:35,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,936 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:08:35,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:08:35,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:08:35,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:08:35,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (1/1) ... [2022-12-13 21:08:35,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:08:35,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:08:35,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:08:35,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:08:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:08:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:08:36,057 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:08:36,058 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:08:36,237 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:08:36,242 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:08:36,242 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:08:36,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:08:36 BoogieIcfgContainer [2022-12-13 21:08:36,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:08:36,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:08:36,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:08:36,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:08:36,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:08:35" (1/3) ... [2022-12-13 21:08:36,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac67300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:08:36, skipping insertion in model container [2022-12-13 21:08:36,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:35" (2/3) ... [2022-12-13 21:08:36,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac67300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:08:36, skipping insertion in model container [2022-12-13 21:08:36,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:08:36" (3/3) ... [2022-12-13 21:08:36,250 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs.c [2022-12-13 21:08:36,265 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:08:36,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:08:36,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:08:36,306 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;@7884ee54, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:08:36,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:08:36,309 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) [2022-12-13 21:08:36,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 21:08:36,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:36,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 21:08:36,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:36,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 21:08:36,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:08:36,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817577144] [2022-12-13 21:08:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:36,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:08:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:08:36,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:08:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:08:36,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:08:36,504 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:08:36,505 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:08:36,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:08:36,510 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 21:08:36,514 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:08:36,523 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 21:08:36,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:08:36 BoogieIcfgContainer [2022-12-13 21:08:36,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:08:36,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:08:36,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:08:36,529 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:08:36,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:08:36" (3/4) ... [2022-12-13 21:08:36,532 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:08:36,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:08:36,533 INFO L158 Benchmark]: Toolchain (without parser) took 880.50ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 99.7MB in the beginning and 139.2MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:08:36,533 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:08:36,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.87ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 88.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 21:08:36,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.69ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:08:36,534 INFO L158 Benchmark]: Boogie Preprocessor took 18.92ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:08:36,535 INFO L158 Benchmark]: RCFGBuilder took 304.83ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 67.2MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 21:08:36,535 INFO L158 Benchmark]: TraceAbstraction took 282.95ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 66.7MB in the beginning and 140.3MB in the end (delta: -73.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:08:36,536 INFO L158 Benchmark]: Witness Printer took 3.43ms. Allocated memory is still 172.0MB. Free memory was 140.3MB in the beginning and 139.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:08:36,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.87ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 88.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.69ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.92ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.83ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 67.2MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 282.95ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 66.7MB in the beginning and 140.3MB in the end (delta: -73.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.43ms. Allocated memory is still 172.0MB. Free memory was 140.3MB in the beginning and 139.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 73, overapproximation of bitwiseAnd at line 67. 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 5); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (5 - 1); [L31] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 4); [L32] const SORT_8 msb_SORT_8 = (SORT_8)1 << (4 - 1); [L34] const SORT_4 var_5 = 1; [L35] const SORT_8 var_9 = 2; [L36] const SORT_1 var_15 = 1; [L37] const SORT_4 var_19 = 5; [L38] const SORT_4 var_22 = 7; [L39] const SORT_4 var_26 = 11; [L40] const SORT_4 var_29 = 3; [L41] const SORT_8 var_30 = 1; [L42] const SORT_8 var_37 = 5; [L44] SORT_1 input_2; [L45] SORT_1 input_3; [L47] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L48] SORT_4 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L49] SORT_4 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L50] SORT_4 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L52] SORT_4 init_7_arg_1 = var_5; [L53] state_6 = init_7_arg_1 [L54] SORT_4 init_21_arg_1 = var_19; [L55] state_20 = init_21_arg_1 [L56] SORT_4 init_24_arg_1 = var_22; [L57] state_23 = init_24_arg_1 [L58] SORT_4 init_28_arg_1 = var_26; [L59] state_27 = init_28_arg_1 VAL [init_21_arg_1=5, init_24_arg_1=7, init_28_arg_1=11, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_4=31, mask_SORT_8=15, msb_SORT_1=1, msb_SORT_4=16, msb_SORT_8=8, state_20=5, state_23=7, state_27=11, state_6=1, var_15=1, var_19=5, var_22=7, var_26=11, var_29=3, var_30=1, var_37=5, var_5=1, var_9=2] [L62] input_2 = __VERIFIER_nondet_uchar() [L63] input_3 = __VERIFIER_nondet_uchar() [L66] SORT_8 var_10_arg_0 = var_9; [L67] var_10_arg_0 = var_10_arg_0 & mask_SORT_8 [L68] SORT_4 var_10 = var_10_arg_0; [L69] SORT_4 var_11_arg_0 = state_6; [L70] SORT_4 var_11_arg_1 = var_10; [L71] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L72] SORT_1 var_12_arg_0 = var_11; [L73] SORT_1 var_12 = ~var_12_arg_0; [L74] SORT_1 var_16_arg_0 = var_12; [L75] SORT_1 var_16 = ~var_16_arg_0; [L76] SORT_1 var_17_arg_0 = var_15; [L77] SORT_1 var_17_arg_1 = var_16; [L78] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L79] var_17 = var_17 & mask_SORT_1 [L80] SORT_1 bad_18_arg_0 = var_17; [L81] CALL __VERIFIER_assert(!(bad_18_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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 21:08:36,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8 --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 bd8a86fa4f066b15db9b2bf3d5b05fdfa163a1ceac95f1ac0dba938965cde89d --- 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-2329fc7 [2022-12-13 21:08:38,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:08:38,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:08:38,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:08:38,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:08:38,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:08:38,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:08:38,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:08:38,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:08:38,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:08:38,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:08:38,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:08:38,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:08:38,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:08:38,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:08:38,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:08:38,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:08:38,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:08:38,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:08:38,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:08:38,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:08:38,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:08:38,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:08:38,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:08:38,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:08:38,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:08:38,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:08:38,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:08:38,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:08:38,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:08:38,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:08:38,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:08:38,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:08:38,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:08:38,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:08:38,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:08:38,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:08:38,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:08:38,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:08:38,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:08:38,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:08:38,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 21:08:38,160 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:08:38,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:08:38,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:08:38,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:08:38,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:08:38,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:08:38,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:08:38,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:08:38,162 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:08:38,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:08:38,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:08:38,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:08:38,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:08:38,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:08:38,162 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:08:38,162 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 21:08:38,163 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 21:08:38,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:08:38,163 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:08:38,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:08:38,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:08:38,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:08:38,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:08:38,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:08:38,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:08:38,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:08:38,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:08:38,164 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 21:08:38,164 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 21:08:38,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:08:38,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:08:38,164 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:08:38,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:08:38,165 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 21:08:38,165 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:08:38,165 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd8a86fa4f066b15db9b2bf3d5b05fdfa163a1ceac95f1ac0dba938965cde89d [2022-12-13 21:08:38,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:08:38,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:08:38,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:08:38,377 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:08:38,378 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:08:38,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c [2022-12-13 21:08:40,979 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:08:41,109 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:08:41,109 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c [2022-12-13 21:08:41,114 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/data/08d7ada4e/99255e76c7af450283db72fd7747fde0/FLAGd503d2b8b [2022-12-13 21:08:41,124 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/data/08d7ada4e/99255e76c7af450283db72fd7747fde0 [2022-12-13 21:08:41,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:08:41,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:08:41,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:08:41,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:08:41,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:08:41,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fbdda6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41, skipping insertion in model container [2022-12-13 21:08:41,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:08:41,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:08:41,237 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_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c[1107,1120] [2022-12-13 21:08:41,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:08:41,274 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:08:41,282 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_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs.c[1107,1120] [2022-12-13 21:08:41,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:08:41,307 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:08:41,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41 WrapperNode [2022-12-13 21:08:41,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:08:41,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:08:41,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:08:41,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:08:41,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,335 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2022-12-13 21:08:41,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:08:41,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:08:41,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:08:41,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:08:41,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,354 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:08:41,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:08:41,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:08:41,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:08:41,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (1/1) ... [2022-12-13 21:08:41,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:08:41,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:08:41,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:08:41,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:08:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:08:41,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:08:41,489 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:08:41,491 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:08:41,642 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:08:41,649 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:08:41,649 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:08:41,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:08:41 BoogieIcfgContainer [2022-12-13 21:08:41,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:08:41,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:08:41,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:08:41,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:08:41,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:08:41" (1/3) ... [2022-12-13 21:08:41,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5924b48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:08:41, skipping insertion in model container [2022-12-13 21:08:41,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:41" (2/3) ... [2022-12-13 21:08:41,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5924b48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:08:41, skipping insertion in model container [2022-12-13 21:08:41,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:08:41" (3/3) ... [2022-12-13 21:08:41,659 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs.c [2022-12-13 21:08:41,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:08:41,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:08:41,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:08:41,731 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;@6c5b48a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:08:41,731 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:08:41,735 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) [2022-12-13 21:08:41,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 21:08:41,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:41,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 21:08:41,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:41,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:41,747 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 21:08:41,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:41,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697260398] [2022-12-13 21:08:41,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:41,759 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 [2022-12-13 21:08:41,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:41,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:08:41,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:41,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 21:08:41,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:41,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:41,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:41,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697260398] [2022-12-13 21:08:41,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697260398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:41,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:41,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:08:41,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896831949] [2022-12-13 21:08:41,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:41,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:08:41,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:41,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:08:41,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:08:41,994 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) [2022-12-13 21:08:42,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:42,040 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-13 21:08:42,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:08:42,042 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 [2022-12-13 21:08:42,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:42,048 INFO L225 Difference]: With dead ends: 20 [2022-12-13 21:08:42,048 INFO L226 Difference]: Without dead ends: 11 [2022-12-13 21:08:42,050 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 [2022-12-13 21:08:42,052 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:42,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-13 21:08:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 21:08:42,072 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) [2022-12-13 21:08:42,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 21:08:42,073 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-13 21:08:42,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:42,073 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 21:08:42,074 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) [2022-12-13 21:08:42,074 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 21:08:42,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 21:08:42,074 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:42,074 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:42,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:42,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:42,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:42,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:42,279 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-13 21:08:42,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:42,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875452143] [2022-12-13 21:08:42,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:42,282 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 [2022-12-13 21:08:42,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:42,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:08:42,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:42,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-13 21:08:42,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:42,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:42,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:08:42,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:42,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:42,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875452143] [2022-12-13 21:08:42,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875452143] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:08:42,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:08:42,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 21:08:42,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374907945] [2022-12-13 21:08:42,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:08:42,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 21:08:42,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:42,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 21:08:42,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:08:42,967 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) [2022-12-13 21:08:43,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:43,111 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-13 21:08:43,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:08:43,112 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 [2022-12-13 21:08:43,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:43,113 INFO L225 Difference]: With dead ends: 16 [2022-12-13 21:08:43,113 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 21:08:43,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:08:43,114 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:43,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:43,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 21:08:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-13 21:08:43,118 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) [2022-12-13 21:08:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-13 21:08:43,119 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-13 21:08:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:43,119 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-13 21:08:43,119 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) [2022-12-13 21:08:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-13 21:08:43,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 21:08:43,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:43,120 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 21:08:43,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 21:08:43,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:43,321 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:43,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-13 21:08:43,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:43,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136715668] [2022-12-13 21:08:43,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:08:43,322 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 [2022-12-13 21:08:43,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:43,323 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:08:43,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:43,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 21:08:43,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:08:43,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-13 21:08:43,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:43,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:08:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:44,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:44,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136715668] [2022-12-13 21:08:44,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136715668] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:08:44,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:08:44,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 21:08:44,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134666075] [2022-12-13 21:08:44,463 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:08:44,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:08:44,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:44,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:08:44,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:08:44,468 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:44,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:44,826 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-13 21:08:44,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:08:44,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-13 21:08:44,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:44,827 INFO L225 Difference]: With dead ends: 19 [2022-12-13 21:08:44,827 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 21:08:44,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-13 21:08:44,828 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:44,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 21 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:08:44,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 21:08:44,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-13 21:08:44,834 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) [2022-12-13 21:08:44,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-13 21:08:44,834 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-12-13 21:08:44,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:44,835 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-13 21:08:44,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:44,835 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-13 21:08:44,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 21:08:44,835 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:44,835 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-13 21:08:44,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 21:08:45,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:45,037 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:45,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:45,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-12-13 21:08:45,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:45,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897816640] [2022-12-13 21:08:45,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 21:08:45,038 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 [2022-12-13 21:08:45,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:45,039 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:08:45,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:45,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-13 21:08:45,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:08:45,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-13 21:08:45,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:45,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:08:46,048 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:46,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:46,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897816640] [2022-12-13 21:08:46,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897816640] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:08:46,049 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:08:46,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-12-13 21:08:46,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542784996] [2022-12-13 21:08:46,050 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:08:46,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 21:08:46,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:46,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:08:46,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:08:46,051 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 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) [2022-12-13 21:08:46,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:46,289 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-12-13 21:08:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:08:46,289 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 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 [2022-12-13 21:08:46,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:46,290 INFO L225 Difference]: With dead ends: 22 [2022-12-13 21:08:46,290 INFO L226 Difference]: Without dead ends: 20 [2022-12-13 21:08:46,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-12-13 21:08:46,291 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:46,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 30 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:08:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-13 21:08:46,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-12-13 21:08:46,294 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) [2022-12-13 21:08:46,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-12-13 21:08:46,294 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-12-13 21:08:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:46,294 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-12-13 21:08:46,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 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) [2022-12-13 21:08:46,295 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-12-13 21:08:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 21:08:46,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:46,295 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-12-13 21:08:46,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:46,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:46,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:46,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:46,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-12-13 21:08:46,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:46,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697076345] [2022-12-13 21:08:46,501 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 21:08:46,502 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 [2022-12-13 21:08:46,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:46,505 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:08:46,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:46,591 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 21:08:46,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:08:46,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 21:08:46,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:08:46,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:08:47,416 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:47,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:47,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697076345] [2022-12-13 21:08:47,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697076345] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:08:47,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:08:47,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2022-12-13 21:08:47,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737538893] [2022-12-13 21:08:47,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:08:47,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:08:47,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:47,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:08:47,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:08:47,419 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2022-12-13 21:08:47,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:47,714 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-12-13 21:08:47,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 21:08:47,714 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-13 21:08:47,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:47,714 INFO L225 Difference]: With dead ends: 28 [2022-12-13 21:08:47,714 INFO L226 Difference]: Without dead ends: 26 [2022-12-13 21:08:47,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-12-13 21:08:47,715 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:47,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 50 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:08:47,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-13 21:08:47,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-12-13 21:08:47,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 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) [2022-12-13 21:08:47,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-12-13 21:08:47,719 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 17 [2022-12-13 21:08:47,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:47,720 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-12-13 21:08:47,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2022-12-13 21:08:47,720 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-12-13 21:08:47,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 21:08:47,720 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:47,720 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2022-12-13 21:08:47,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 21:08:47,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:47,922 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:47,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:47,923 INFO L85 PathProgramCache]: Analyzing trace with hash -826954269, now seen corresponding path program 5 times [2022-12-13 21:08:47,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:47,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032941616] [2022-12-13 21:08:47,925 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 21:08:47,925 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 [2022-12-13 21:08:47,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:47,928 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:08:47,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 21:08:48,032 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-12-13 21:08:48,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:08:48,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 156 conjunts are in the unsatisfiable core [2022-12-13 21:08:48,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:48,929 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:48,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:08:53,991 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:53,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:53,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032941616] [2022-12-13 21:08:53,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032941616] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:08:53,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:08:53,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-12-13 21:08:53,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822080752] [2022-12-13 21:08:53,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:08:53,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 21:08:53,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:53,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 21:08:53,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:08:53,993 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:54,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:54,680 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-12-13 21:08:54,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:08:54,681 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-13 21:08:54,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:54,681 INFO L225 Difference]: With dead ends: 34 [2022-12-13 21:08:54,681 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 21:08:54,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2022-12-13 21:08:54,683 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:54,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 46 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 21:08:54,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 21:08:54,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2022-12-13 21:08:54,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 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) [2022-12-13 21:08:54,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-12-13 21:08:54,689 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2022-12-13 21:08:54,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:54,689 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-12-13 21:08:54,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:54,690 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-12-13 21:08:54,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 21:08:54,690 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:54,690 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1] [2022-12-13 21:08:54,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 21:08:54,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:54,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:54,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:54,893 INFO L85 PathProgramCache]: Analyzing trace with hash 142558665, now seen corresponding path program 6 times [2022-12-13 21:08:54,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:54,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900679672] [2022-12-13 21:08:54,895 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 21:08:54,895 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 [2022-12-13 21:08:54,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:54,898 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:08:54,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (8)] Waiting until timeout for monitored process [2022-12-13 21:08:55,029 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2022-12-13 21:08:55,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:08:55,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 70 conjunts are in the unsatisfiable core [2022-12-13 21:08:55,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:55,521 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:55,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:08:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:56,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:56,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900679672] [2022-12-13 21:08:56,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900679672] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:08:56,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:08:56,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-12-13 21:08:56,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708972694] [2022-12-13 21:08:56,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:08:56,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 21:08:56,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:56,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 21:08:56,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-12-13 21:08:56,696 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 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) [2022-12-13 21:08:59,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:59,071 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2022-12-13 21:08:59,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 21:08:59,071 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 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 23 [2022-12-13 21:08:59,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:59,072 INFO L225 Difference]: With dead ends: 55 [2022-12-13 21:08:59,072 INFO L226 Difference]: Without dead ends: 53 [2022-12-13 21:08:59,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=269, Invalid=723, Unknown=0, NotChecked=0, Total=992 [2022-12-13 21:08:59,074 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 55 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:59,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 36 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 21:08:59,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-13 21:08:59,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2022-12-13 21:08:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.04) internal successors, (52), 50 states have internal predecessors, (52), 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) [2022-12-13 21:08:59,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2022-12-13 21:08:59,084 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 23 [2022-12-13 21:08:59,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:59,085 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2022-12-13 21:08:59,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 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) [2022-12-13 21:08:59,085 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2022-12-13 21:08:59,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-13 21:08:59,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:59,085 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 1, 1, 1, 1] [2022-12-13 21:08:59,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (8)] Ended with exit code 0 [2022-12-13 21:08:59,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:08:59,287 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:59,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:59,288 INFO L85 PathProgramCache]: Analyzing trace with hash 969805001, now seen corresponding path program 7 times [2022-12-13 21:08:59,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:59,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475950742] [2022-12-13 21:08:59,290 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 21:08:59,291 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 [2022-12-13 21:08:59,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:59,294 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:08:59,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (9)] Waiting until timeout for monitored process [2022-12-13 21:08:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:59,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 419 conjunts are in the unsatisfiable core [2022-12-13 21:08:59,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:02,762 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:09:02,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:09:30,069 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:09:30,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:30,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475950742] [2022-12-13 21:09:30,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475950742] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:09:30,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:09:30,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2022-12-13 21:09:30,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684679692] [2022-12-13 21:09:30,070 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:09:30,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-13 21:09:30,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:30,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-13 21:09:30,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1023, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 21:09:30,072 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand has 34 states, 34 states have (on average 2.7058823529411766) internal successors, (92), 34 states have internal predecessors, (92), 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) [2022-12-13 21:09:33,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:33,311 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2022-12-13 21:09:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 21:09:33,311 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.7058823529411766) internal successors, (92), 34 states have internal predecessors, (92), 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 47 [2022-12-13 21:09:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:33,312 INFO L225 Difference]: With dead ends: 61 [2022-12-13 21:09:33,312 INFO L226 Difference]: Without dead ends: 59 [2022-12-13 21:09:33,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=219, Invalid=2331, Unknown=0, NotChecked=0, Total=2550 [2022-12-13 21:09:33,313 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 32 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:33,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 105 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 21:09:33,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-13 21:09:33,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2022-12-13 21:09:33,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0357142857142858) internal successors, (58), 56 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:09:33,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2022-12-13 21:09:33,325 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 47 [2022-12-13 21:09:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:33,325 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2022-12-13 21:09:33,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.7058823529411766) internal successors, (92), 34 states have internal predecessors, (92), 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) [2022-12-13 21:09:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2022-12-13 21:09:33,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 21:09:33,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:33,326 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 1, 1, 1, 1] [2022-12-13 21:09:33,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (9)] Ended with exit code 0 [2022-12-13 21:09:33,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:09:33,528 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:33,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:33,529 INFO L85 PathProgramCache]: Analyzing trace with hash -779438813, now seen corresponding path program 8 times [2022-12-13 21:09:33,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:33,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671761234] [2022-12-13 21:09:33,531 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:09:33,531 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 [2022-12-13 21:09:33,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:33,534 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:09:33,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (10)] Waiting until timeout for monitored process [2022-12-13 21:09:33,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 21:09:33,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:09:33,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 303 conjunts are in the unsatisfiable core [2022-12-13 21:09:33,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:09:36,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:09:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:09:53,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:53,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671761234] [2022-12-13 21:09:53,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671761234] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:09:53,365 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:09:53,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2022-12-13 21:09:53,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610132136] [2022-12-13 21:09:53,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:09:53,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-13 21:09:53,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:53,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-13 21:09:53,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1151, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 21:09:53,366 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand has 36 states, 36 states have (on average 2.7222222222222223) internal successors, (98), 36 states have internal predecessors, (98), 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) [2022-12-13 21:09:56,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:56,333 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2022-12-13 21:09:56,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 21:09:56,333 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.7222222222222223) internal successors, (98), 36 states have internal predecessors, (98), 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 50 [2022-12-13 21:09:56,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:56,334 INFO L225 Difference]: With dead ends: 64 [2022-12-13 21:09:56,334 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 21:09:56,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=258, Invalid=2604, Unknown=0, NotChecked=0, Total=2862 [2022-12-13 21:09:56,335 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 50 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:56,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 75 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 21:09:56,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 21:09:56,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2022-12-13 21:09:56,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 59 states have internal predecessors, (61), 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) [2022-12-13 21:09:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2022-12-13 21:09:56,353 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 50 [2022-12-13 21:09:56,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:56,353 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2022-12-13 21:09:56,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.7222222222222223) internal successors, (98), 36 states have internal predecessors, (98), 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) [2022-12-13 21:09:56,353 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2022-12-13 21:09:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 21:09:56,354 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:56,354 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 1, 1, 1, 1] [2022-12-13 21:09:56,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (10)] Ended with exit code 0 [2022-12-13 21:09:56,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:09:56,556 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:56,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:56,557 INFO L85 PathProgramCache]: Analyzing trace with hash 660960099, now seen corresponding path program 9 times [2022-12-13 21:09:56,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:56,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255290875] [2022-12-13 21:09:56,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 21:09:56,560 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 [2022-12-13 21:09:56,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:56,563 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:09:56,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (11)] Waiting until timeout for monitored process [2022-12-13 21:09:56,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2022-12-13 21:09:56,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:09:56,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 147 conjunts are in the unsatisfiable core [2022-12-13 21:09:56,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:09:58,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:10:03,763 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:10:03,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:10:03,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255290875] [2022-12-13 21:10:03,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255290875] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:10:03,763 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:10:03,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2022-12-13 21:10:03,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844488758] [2022-12-13 21:10:03,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:10:03,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-13 21:10:03,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:10:03,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-13 21:10:03,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 21:10:03,766 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 40 states, 40 states have (on average 2.75) internal successors, (110), 40 states have internal predecessors, (110), 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) [2022-12-13 21:10:26,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:26,857 INFO L93 Difference]: Finished difference Result 121 states and 133 transitions. [2022-12-13 21:10:26,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-13 21:10:26,857 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.75) internal successors, (110), 40 states have internal predecessors, (110), 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 56 [2022-12-13 21:10:26,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:10:26,858 INFO L225 Difference]: With dead ends: 121 [2022-12-13 21:10:26,858 INFO L226 Difference]: Without dead ends: 119 [2022-12-13 21:10:26,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=1476, Invalid=4224, Unknown=0, NotChecked=0, Total=5700 [2022-12-13 21:10:26,859 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 141 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 21:10:26,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 69 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 21:10:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-12-13 21:10:26,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2022-12-13 21:10:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.0176991150442478) internal successors, (115), 113 states have internal predecessors, (115), 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) [2022-12-13 21:10:26,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2022-12-13 21:10:26,894 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 56 [2022-12-13 21:10:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:10:26,894 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2022-12-13 21:10:26,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.75) internal successors, (110), 40 states have internal predecessors, (110), 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) [2022-12-13 21:10:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2022-12-13 21:10:26,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-13 21:10:26,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:26,896 INFO L195 NwaCegarLoop]: trace histogram [36, 35, 35, 1, 1, 1, 1] [2022-12-13 21:10:26,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (11)] Ended with exit code 0 [2022-12-13 21:10:27,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:10:27,098 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:27,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:27,099 INFO L85 PathProgramCache]: Analyzing trace with hash -345230429, now seen corresponding path program 10 times [2022-12-13 21:10:27,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:10:27,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846971173] [2022-12-13 21:10:27,103 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 21:10:27,103 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 [2022-12-13 21:10:27,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:10:27,106 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:10:27,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (12)] Waiting until timeout for monitored process [2022-12-13 21:10:27,534 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 21:10:27,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:10:27,571 WARN L261 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 1068 conjunts are in the unsatisfiable core [2022-12-13 21:10:27,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:10:40,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 1855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:10:40,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:14:19,522 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 483 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:14:35,731 WARN L233 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 496 DAG size of output: 410 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:14:56,914 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 500 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:15:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 1855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:20,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:15:20,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846971173] [2022-12-13 21:15:20,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846971173] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:15:20,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:15:20,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 76 [2022-12-13 21:15:20,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023925823] [2022-12-13 21:15:20,225 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:15:20,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-12-13 21:15:20,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:15:20,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-12-13 21:15:20,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=5427, Unknown=0, NotChecked=0, Total=5700 [2022-12-13 21:15:20,229 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand has 76 states, 76 states have (on average 2.8684210526315788) internal successors, (218), 76 states have internal predecessors, (218), 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) [2022-12-13 21:15:57,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:57,952 INFO L93 Difference]: Finished difference Result 135 states and 137 transitions. [2022-12-13 21:15:57,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-13 21:15:57,952 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 2.8684210526315788) internal successors, (218), 76 states have internal predecessors, (218), 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 110 [2022-12-13 21:15:57,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:15:57,953 INFO L225 Difference]: With dead ends: 135 [2022-12-13 21:15:57,953 INFO L226 Difference]: Without dead ends: 133 [2022-12-13 21:15:57,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 134 SyntacticMatches, 10 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1915 ImplicationChecksByTransitivity, 189.4s TimeCoverageRelationStatistics Valid=764, Invalid=13998, Unknown=0, NotChecked=0, Total=14762 [2022-12-13 21:15:57,958 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 153 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 5395 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 5435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 5395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-12-13 21:15:57,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 241 Invalid, 5435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 5395 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2022-12-13 21:15:57,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-12-13 21:15:58,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 129. [2022-12-13 21:15:58,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.0234375) internal successors, (131), 128 states have internal predecessors, (131), 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) [2022-12-13 21:15:58,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 131 transitions. [2022-12-13 21:15:58,002 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 131 transitions. Word has length 110 [2022-12-13 21:15:58,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:15:58,003 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 131 transitions. [2022-12-13 21:15:58,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 2.8684210526315788) internal successors, (218), 76 states have internal predecessors, (218), 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) [2022-12-13 21:15:58,003 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 131 transitions. [2022-12-13 21:15:58,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-13 21:15:58,004 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:15:58,004 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 1, 1, 1, 1] [2022-12-13 21:15:58,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (12)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:58,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:15:58,205 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:15:58,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:58,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1691740169, now seen corresponding path program 11 times [2022-12-13 21:15:58,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:15:58,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381902870] [2022-12-13 21:15:58,211 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 21:15:58,211 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 [2022-12-13 21:15:58,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:15:58,214 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:15:58,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (13)] Waiting until timeout for monitored process [2022-12-13 21:15:59,352 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2022-12-13 21:15:59,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:15:59,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 702 conjunts are in the unsatisfiable core [2022-12-13 21:15:59,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:16:08,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1962 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:16:08,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:17:14,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1962 backedges. 0 proven. 1962 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:17:14,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:17:14,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381902870] [2022-12-13 21:17:14,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381902870] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:17:14,357 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:17:14,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 40] total 75 [2022-12-13 21:17:14,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186494706] [2022-12-13 21:17:14,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:17:14,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-12-13 21:17:14,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:17:14,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-12-13 21:17:14,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=5216, Unknown=0, NotChecked=0, Total=5550 [2022-12-13 21:17:14,360 INFO L87 Difference]: Start difference. First operand 129 states and 131 transitions. Second operand has 75 states, 75 states have (on average 2.88) internal successors, (216), 75 states have internal predecessors, (216), 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) [2022-12-13 21:17:31,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:17:31,054 INFO L93 Difference]: Finished difference Result 131 states and 132 transitions. [2022-12-13 21:17:31,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-13 21:17:31,054 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.88) internal successors, (216), 75 states have internal predecessors, (216), 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 113 [2022-12-13 21:17:31,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:17:31,055 INFO L225 Difference]: With dead ends: 131 [2022-12-13 21:17:31,055 INFO L226 Difference]: Without dead ends: 129 [2022-12-13 21:17:31,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2609 ImplicationChecksByTransitivity, 56.7s TimeCoverageRelationStatistics Valid=826, Invalid=14426, Unknown=0, NotChecked=0, Total=15252 [2022-12-13 21:17:31,058 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 76 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 2894 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-13 21:17:31,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 399 Invalid, 2918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2894 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-13 21:17:31,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-12-13 21:17:31,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2022-12-13 21:17:31,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.0078125) internal successors, (129), 128 states have internal predecessors, (129), 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) [2022-12-13 21:17:31,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2022-12-13 21:17:31,104 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 113 [2022-12-13 21:17:31,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:17:31,104 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2022-12-13 21:17:31,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.88) internal successors, (216), 75 states have internal predecessors, (216), 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) [2022-12-13 21:17:31,105 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2022-12-13 21:17:31,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-13 21:17:31,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:17:31,106 INFO L195 NwaCegarLoop]: trace histogram [42, 41, 41, 1, 1, 1, 1] [2022-12-13 21:17:31,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (13)] Ended with exit code 0 [2022-12-13 21:17:31,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:17:31,308 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:17:31,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:17:31,309 INFO L85 PathProgramCache]: Analyzing trace with hash -22626717, now seen corresponding path program 12 times [2022-12-13 21:17:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:17:31,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634741261] [2022-12-13 21:17:31,313 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 21:17:31,314 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 [2022-12-13 21:17:31,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:17:31,316 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:17:31,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (14)] Waiting until timeout for monitored process [2022-12-13 21:17:32,627 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 42 check-sat command(s) [2022-12-13 21:17:32,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:17:32,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 2423 conjuncts, 315 conjunts are in the unsatisfiable core [2022-12-13 21:17:32,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:17:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2542 backedges. 0 proven. 2542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:17:41,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:18:09,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2542 backedges. 0 proven. 2542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:18:09,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:18:09,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634741261] [2022-12-13 21:18:09,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634741261] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:18:09,029 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:18:09,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 88 [2022-12-13 21:18:09,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113493468] [2022-12-13 21:18:09,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:18:09,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-12-13 21:18:09,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:18:09,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-12-13 21:18:09,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1857, Invalid=5799, Unknown=0, NotChecked=0, Total=7656 [2022-12-13 21:18:09,033 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand has 88 states, 88 states have (on average 2.8863636363636362) internal successors, (254), 88 states have internal predecessors, (254), 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) [2022-12-13 21:18:33,623 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 847 DAG size of output: 757 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:18:42,710 WARN L233 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 702 DAG size of output: 663 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:18:51,519 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 686 DAG size of output: 648 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:19:00,134 WARN L233 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 670 DAG size of output: 633 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:19:08,269 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 654 DAG size of output: 618 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:19:16,157 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 638 DAG size of output: 603 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:19:23,847 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 622 DAG size of output: 588 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:19:31,066 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 606 DAG size of output: 573 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 21:21:30,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:21:30,553 INFO L93 Difference]: Finished difference Result 265 states and 278 transitions. [2022-12-13 21:21:30,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 21:21:30,554 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 2.8863636363636362) internal successors, (254), 88 states have internal predecessors, (254), 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 128 [2022-12-13 21:21:30,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:21:30,555 INFO L225 Difference]: With dead ends: 265 [2022-12-13 21:21:30,555 INFO L226 Difference]: Without dead ends: 263 [2022-12-13 21:21:30,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3570 ImplicationChecksByTransitivity, 220.6s TimeCoverageRelationStatistics Valid=7460, Invalid=21952, Unknown=0, NotChecked=0, Total=29412 [2022-12-13 21:21:30,557 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 351 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 5313 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 5398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 5313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-13 21:21:30,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 141 Invalid, 5398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 5313 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-12-13 21:21:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-12-13 21:21:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 255. [2022-12-13 21:21:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.0039370078740157) internal successors, (255), 254 states have internal predecessors, (255), 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) [2022-12-13 21:21:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 255 transitions. [2022-12-13 21:21:30,686 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 255 transitions. Word has length 128 [2022-12-13 21:21:30,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:21:30,686 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 255 transitions. [2022-12-13 21:21:30,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.8863636363636362) internal successors, (254), 88 states have internal predecessors, (254), 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) [2022-12-13 21:21:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 255 transitions. [2022-12-13 21:21:30,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-12-13 21:21:30,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:21:30,688 INFO L195 NwaCegarLoop]: trace histogram [84, 83, 83, 1, 1, 1, 1] [2022-12-13 21:21:30,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (14)] Ended with exit code 0 [2022-12-13 21:21:30,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 21:21:30,890 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:21:30,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:21:30,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1313819043, now seen corresponding path program 13 times [2022-12-13 21:21:30,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:21:30,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075915205] [2022-12-13 21:21:30,899 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 21:21:30,900 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 [2022-12-13 21:21:30,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:21:30,903 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 21:21:30,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13047a8f-b44a-4f4c-8cb8-1e51672d87e3/bin/uautomizer-uyxdKDjOR8/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 (15)] Waiting until timeout for monitored process [2022-12-13 21:21:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:31,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 4859 conjuncts, 1751 conjunts are in the unsatisfiable core [2022-12-13 21:21:31,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:22:13,784 INFO L134 CoverageAnalysis]: Checked inductivity of 10375 backedges. 0 proven. 10186 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-12-13 21:22:13,785 INFO L328 TraceCheckSpWp]: Computing backward predicates...