./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro --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 8e703c0c99512c9025402351b79a41accf5bd6b8dfef03fa3544178837b891c9 --- 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-8393723 [2022-11-18 18:42:57,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:42:57,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:42:57,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:42:57,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:42:57,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:42:57,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:42:57,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:42:57,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:42:57,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:42:57,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:42:57,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:42:57,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:42:57,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:42:57,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:42:57,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:42:57,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:42:57,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:42:57,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:42:57,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:42:57,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:42:57,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:42:57,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:42:57,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:42:57,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:42:57,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:42:57,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:42:57,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:42:57,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:42:57,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:42:57,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:42:57,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:42:57,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:42:57,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:42:57,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:42:57,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:42:57,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:42:57,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:42:57,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:42:57,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:42:57,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:42:57,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:42:57,739 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:42:57,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:42:57,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:42:57,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:42:57,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:42:57,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:42:57,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:42:57,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:42:57,744 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:42:57,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:42:57,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:42:57,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:42:57,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:42:57,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:42:57,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:42:57,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:42:57,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:42:57,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:42:57,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:42:57,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:42:57,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:42:57,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:42:57,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:42:57,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:42:57,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:42:57,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:42:57,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:42:57,750 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:42:57,750 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:42:57,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:42:57,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e703c0c99512c9025402351b79a41accf5bd6b8dfef03fa3544178837b891c9 [2022-11-18 18:42:58,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:42:58,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:42:58,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:42:58,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:42:58,103 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:42:58,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-18 18:42:58,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data/4c6dd0833/5e6c1bb678b140798f3a969fd120a328/FLAG2c5ed7e99 [2022-11-18 18:42:58,859 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:42:58,860 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-18 18:42:58,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data/4c6dd0833/5e6c1bb678b140798f3a969fd120a328/FLAG2c5ed7e99 [2022-11-18 18:42:59,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data/4c6dd0833/5e6c1bb678b140798f3a969fd120a328 [2022-11-18 18:42:59,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:42:59,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:42:59,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:59,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:42:59,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:42:59,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782c47db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59, skipping insertion in model container [2022-11-18 18:42:59,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:42:59,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:42:59,466 WARN L234 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_570d491c-8f25-4601-b3f8-8d9ec4410ecd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c[1014,1027] [2022-11-18 18:42:59,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:59,623 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:42:59,642 WARN L234 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_570d491c-8f25-4601-b3f8-8d9ec4410ecd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c[1014,1027] [2022-11-18 18:42:59,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:59,803 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:42:59,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59 WrapperNode [2022-11-18 18:42:59,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:59,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:59,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:42:59,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:42:59,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,905 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 711 [2022-11-18 18:42:59,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:59,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:42:59,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:42:59,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:42:59,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:42:59,998 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:43:00,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:43:00,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:43:00,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:43:00,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:43:00,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:43:00,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (1/1) ... [2022-11-18 18:43:00,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:43:00,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:43:00,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:43:00,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:43:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:43:00,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:43:00,329 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:43:00,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:43:01,363 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:43:01,372 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:43:01,373 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:43:01,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:01 BoogieIcfgContainer [2022-11-18 18:43:01,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:43:01,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:43:01,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:43:01,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:43:01,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:42:59" (1/3) ... [2022-11-18 18:43:01,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dce30d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:43:01, skipping insertion in model container [2022-11-18 18:43:01,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:59" (2/3) ... [2022-11-18 18:43:01,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dce30d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:43:01, skipping insertion in model container [2022-11-18 18:43:01,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:01" (3/3) ... [2022-11-18 18:43:01,386 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-18 18:43:01,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:43:01,423 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:43:01,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:43:01,517 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;@4cf31195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:43:01,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:43:01,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.6511627906976745) internal successors, (213), 130 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:01,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:43:01,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:01,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:01,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:01,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:01,561 INFO L85 PathProgramCache]: Analyzing trace with hash 753767930, now seen corresponding path program 1 times [2022-11-18 18:43:01,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:01,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653788766] [2022-11-18 18:43:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:01,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:02,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:02,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653788766] [2022-11-18 18:43:02,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653788766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:02,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:02,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:43:02,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066429645] [2022-11-18 18:43:02,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:02,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:43:02,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:02,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:43:02,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:43:02,372 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.6511627906976745) internal successors, (213), 130 states have internal predecessors, (213), 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 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:02,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:02,526 INFO L93 Difference]: Finished difference Result 406 states and 672 transitions. [2022-11-18 18:43:02,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:43:02,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 [2022-11-18 18:43:02,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:02,540 INFO L225 Difference]: With dead ends: 406 [2022-11-18 18:43:02,540 INFO L226 Difference]: Without dead ends: 277 [2022-11-18 18:43:02,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:43:02,547 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 597 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:02,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 538 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:43:02,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-18 18:43:02,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 129. [2022-11-18 18:43:02,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.6328125) internal successors, (209), 128 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:02,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 209 transitions. [2022-11-18 18:43:02,604 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 209 transitions. Word has length 23 [2022-11-18 18:43:02,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:02,605 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 209 transitions. [2022-11-18 18:43:02,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:02,605 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 209 transitions. [2022-11-18 18:43:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 18:43:02,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:02,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:02,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:43:02,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:02,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:02,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1893694406, now seen corresponding path program 1 times [2022-11-18 18:43:02,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:02,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492314508] [2022-11-18 18:43:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:02,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:02,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:02,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492314508] [2022-11-18 18:43:02,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492314508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:02,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:02,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:43:02,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931617471] [2022-11-18 18:43:02,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:02,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:43:02,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:02,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:43:02,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:43:02,788 INFO L87 Difference]: Start difference. First operand 129 states and 209 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:02,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:02,881 INFO L93 Difference]: Finished difference Result 496 states and 811 transitions. [2022-11-18 18:43:02,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:43:02,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2022-11-18 18:43:02,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:02,884 INFO L225 Difference]: With dead ends: 496 [2022-11-18 18:43:02,884 INFO L226 Difference]: Without dead ends: 369 [2022-11-18 18:43:02,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:43:02,887 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 587 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:02,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 678 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:43:02,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-18 18:43:02,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 131. [2022-11-18 18:43:02,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.623076923076923) internal successors, (211), 130 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:02,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 211 transitions. [2022-11-18 18:43:02,900 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 211 transitions. Word has length 24 [2022-11-18 18:43:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:02,900 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 211 transitions. [2022-11-18 18:43:02,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 211 transitions. [2022-11-18 18:43:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 18:43:02,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:02,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:02,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:43:02,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:02,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:02,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1635447916, now seen corresponding path program 1 times [2022-11-18 18:43:02,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:02,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131410200] [2022-11-18 18:43:02,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:02,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:03,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:03,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:03,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131410200] [2022-11-18 18:43:03,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131410200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:03,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:03,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:43:03,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056505439] [2022-11-18 18:43:03,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:03,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:43:03,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:03,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:43:03,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:43:03,301 INFO L87 Difference]: Start difference. First operand 131 states and 211 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2022-11-18 18:43:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:03,477 INFO L93 Difference]: Finished difference Result 511 states and 830 transitions. [2022-11-18 18:43:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:43:03,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) Word has length 25 [2022-11-18 18:43:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:03,480 INFO L225 Difference]: With dead ends: 511 [2022-11-18 18:43:03,480 INFO L226 Difference]: Without dead ends: 382 [2022-11-18 18:43:03,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:43:03,483 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1305 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:03,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 913 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:43:03,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-11-18 18:43:03,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 134. [2022-11-18 18:43:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.6240601503759398) internal successors, (216), 133 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) [2022-11-18 18:43:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 216 transitions. [2022-11-18 18:43:03,494 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 216 transitions. Word has length 25 [2022-11-18 18:43:03,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:03,495 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 216 transitions. [2022-11-18 18:43:03,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2022-11-18 18:43:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 216 transitions. [2022-11-18 18:43:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 18:43:03,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:03,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:03,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:43:03,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:03,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:03,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1854338260, now seen corresponding path program 1 times [2022-11-18 18:43:03,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:03,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736024353] [2022-11-18 18:43:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:03,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:03,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:03,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736024353] [2022-11-18 18:43:03,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736024353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:03,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:03,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:43:03,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330410833] [2022-11-18 18:43:03,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:03,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:43:03,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:03,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:43:03,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:43:03,799 INFO L87 Difference]: Start difference. First operand 134 states and 216 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:04,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:04,114 INFO L93 Difference]: Finished difference Result 521 states and 846 transitions. [2022-11-18 18:43:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:43:04,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 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 26 [2022-11-18 18:43:04,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:04,118 INFO L225 Difference]: With dead ends: 521 [2022-11-18 18:43:04,119 INFO L226 Difference]: Without dead ends: 389 [2022-11-18 18:43:04,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:43:04,121 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 939 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:04,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 1088 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:43:04,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-11-18 18:43:04,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 134. [2022-11-18 18:43:04,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.6240601503759398) internal successors, (216), 133 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) [2022-11-18 18:43:04,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 216 transitions. [2022-11-18 18:43:04,133 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 216 transitions. Word has length 26 [2022-11-18 18:43:04,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:04,134 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 216 transitions. [2022-11-18 18:43:04,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 216 transitions. [2022-11-18 18:43:04,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 18:43:04,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:04,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:04,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:43:04,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:04,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:04,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2047602026, now seen corresponding path program 1 times [2022-11-18 18:43:04,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:04,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206469295] [2022-11-18 18:43:04,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:04,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:04,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:04,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:43:04,226 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:43:04,227 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:43:04,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:43:04,233 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 18:43:04,237 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:43:04,283 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 18:43:04,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:43:04 BoogieIcfgContainer [2022-11-18 18:43:04,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:43:04,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:43:04,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:43:04,315 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:43:04,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:01" (3/4) ... [2022-11-18 18:43:04,319 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:43:04,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:43:04,321 INFO L158 Benchmark]: Toolchain (without parser) took 5144.84ms. Allocated memory was 111.1MB in the beginning and 184.5MB in the end (delta: 73.4MB). Free memory was 78.3MB in the beginning and 106.3MB in the end (delta: -28.0MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2022-11-18 18:43:04,322 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:43:04,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.09ms. Allocated memory is still 111.1MB. Free memory was 78.1MB in the beginning and 76.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:43:04,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.28ms. Allocated memory is still 111.1MB. Free memory was 76.0MB in the beginning and 68.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 18:43:04,334 INFO L158 Benchmark]: Boogie Preprocessor took 125.24ms. Allocated memory is still 111.1MB. Free memory was 68.7MB in the beginning and 64.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:43:04,335 INFO L158 Benchmark]: RCFGBuilder took 1343.02ms. Allocated memory was 111.1MB in the beginning and 151.0MB in the end (delta: 39.8MB). Free memory was 64.4MB in the beginning and 91.6MB in the end (delta: -27.2MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-11-18 18:43:04,335 INFO L158 Benchmark]: TraceAbstraction took 2934.56ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 90.8MB in the beginning and 107.4MB in the end (delta: -16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 18:43:04,336 INFO L158 Benchmark]: Witness Printer took 6.23ms. Allocated memory is still 184.5MB. Free memory was 107.4MB in the beginning and 106.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:43:04,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.09ms. Allocated memory is still 111.1MB. Free memory was 78.1MB in the beginning and 76.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.28ms. Allocated memory is still 111.1MB. Free memory was 76.0MB in the beginning and 68.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 125.24ms. Allocated memory is still 111.1MB. Free memory was 68.7MB in the beginning and 64.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1343.02ms. Allocated memory was 111.1MB in the beginning and 151.0MB in the end (delta: 39.8MB). Free memory was 64.4MB in the beginning and 91.6MB in the end (delta: -27.2MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2934.56ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 90.8MB in the beginning and 107.4MB in the end (delta: -16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.23ms. Allocated memory is still 184.5MB. Free memory was 107.4MB in the beginning and 106.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 104, overapproximation of shiftRight at line 108, overapproximation of bitwiseAnd at line 117, overapproximation of bitwiseComplement at line 114, overapproximation of bitwiseXor at line 101. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 5); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (5 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_3 var_5 = 0; [L38] const SORT_1 var_12 = 0; [L39] const SORT_4 var_27 = 949; [L40] const SORT_3 var_28 = 1; [L41] const SORT_3 var_30 = 0; [L42] const SORT_4 var_32 = 16; [L43] const SORT_4 var_79 = 600; [L45] SORT_1 input_37; [L46] SORT_1 input_38; [L47] SORT_1 input_43; [L48] SORT_1 input_48; [L49] SORT_1 input_52; [L50] SORT_1 input_57; [L52] SORT_3 state_6 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L53] SORT_3 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L54] SORT_3 state_10 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L55] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L59] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L60] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L61] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] SORT_3 init_7_arg_1 = var_5; [L64] state_6 = init_7_arg_1 [L65] SORT_3 init_9_arg_1 = var_5; [L66] state_8 = init_9_arg_1 [L67] SORT_3 init_11_arg_1 = var_5; [L68] state_10 = init_11_arg_1 [L69] SORT_1 init_14_arg_1 = var_12; [L70] state_13 = init_14_arg_1 [L71] SORT_1 init_16_arg_1 = var_12; [L72] state_15 = init_16_arg_1 [L73] SORT_1 init_18_arg_1 = var_12; [L74] state_17 = init_18_arg_1 [L75] SORT_1 init_20_arg_1 = var_12; [L76] state_19 = init_20_arg_1 [L77] SORT_1 init_22_arg_1 = var_12; [L78] state_21 = init_22_arg_1 [L79] SORT_1 init_24_arg_1 = var_12; [L80] state_23 = init_24_arg_1 [L81] SORT_1 init_26_arg_1 = var_12; [L82] state_25 = init_26_arg_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_30=0, var_32=16, var_5=0, var_79=600] [L85] input_37 = __VERIFIER_nondet_uchar() [L86] input_37 = input_37 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_30=0, var_32=16, var_5=0, var_79=600] [L87] input_38 = __VERIFIER_nondet_uchar() [L88] input_38 = input_38 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_30=0, var_32=16, var_5=0, var_79=600] [L89] input_43 = __VERIFIER_nondet_uchar() [L90] input_43 = input_43 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_30=0, var_32=16, var_5=0, var_79=600] [L91] input_48 = __VERIFIER_nondet_uchar() [L92] input_48 = input_48 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_30=0, var_32=16, var_5=0, var_79=600] [L93] input_52 = __VERIFIER_nondet_uchar() [L94] input_52 = input_52 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_30=0, var_32=16, var_5=0, var_79=600] [L95] input_57 = __VERIFIER_nondet_uchar() [L96] input_57 = input_57 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_30=0, var_32=16, var_5=0, var_79=600] [L99] SORT_3 var_29_arg_0 = var_28; [L100] SORT_3 var_29_arg_1 = state_6; [L101] SORT_3 var_29 = var_29_arg_0 ^ var_29_arg_1; [L102] SORT_3 var_31_arg_0 = var_29; [L103] SORT_3 var_31_arg_1 = var_30; [L104] SORT_4 var_31 = ((SORT_4)var_31_arg_0 << 16) | var_31_arg_1; [L105] SORT_4 var_33_arg_0 = var_31; [L106] var_33_arg_0 = (var_33_arg_0 & msb_SORT_4) ? (var_33_arg_0 | ~mask_SORT_4) : (var_33_arg_0 & mask_SORT_4) [L107] SORT_4 var_33_arg_1 = var_32; [L108] SORT_4 var_33 = (int)var_33_arg_0 >> var_33_arg_1; [L109] var_33 = (var_33_arg_0 & msb_SORT_4) ? (var_33 | ~(mask_SORT_4 >> var_33_arg_1)) : var_33 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=2147483650, var_33_arg_0=0, var_33_arg_1=16, var_5=0, var_79=600] [L110] var_33 = var_33 & mask_SORT_4 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=949, var_33_arg_0=0, var_33_arg_1=16, var_5=0, var_79=600] [L111] SORT_4 var_34_arg_0 = var_27; [L112] SORT_4 var_34_arg_1 = var_33; [L113] SORT_1 var_34 = var_34_arg_0 == var_34_arg_1; [L114] SORT_1 var_35_arg_0 = ~state_25; VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=949, var_33_arg_0=0, var_33_arg_1=16, var_34=1, var_34_arg_0=949, var_34_arg_1=949, var_5=0, var_79=600] [L115] var_35_arg_0 = var_35_arg_0 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=949, var_33_arg_0=0, var_33_arg_1=16, var_34=1, var_34_arg_0=949, var_34_arg_1=949, var_35_arg_0=1, var_5=0, var_79=600] [L116] SORT_1 var_35_arg_1 = var_34; [L117] SORT_1 var_35 = var_35_arg_0 & var_35_arg_1; VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=949, var_33_arg_0=0, var_33_arg_1=16, var_34=1, var_34_arg_0=949, var_34_arg_1=949, var_35=1, var_35_arg_0=1, var_35_arg_1=1, var_5=0, var_79=600] [L118] var_35 = var_35 & mask_SORT_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_37=0, input_38=0, input_43=0, input_48=0, input_52=0, input_57=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=949, var_28=1, var_29=1, var_29_arg_0=1, var_29_arg_1=0, var_30=0, var_31=65536, var_31_arg_0=1, var_31_arg_1=0, var_32=16, var_33=949, var_33_arg_0=0, var_33_arg_1=16, var_34=1, var_34_arg_0=949, var_34_arg_1=949, var_35=1, var_35_arg_0=1, var_35_arg_1=1, var_5=0, var_79=600] [L119] SORT_1 bad_36_arg_0 = var_35; [L120] CALL __VERIFIER_assert(!(bad_36_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, 131 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3428 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3428 mSDsluCounter, 3217 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2056 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1161 mSDtfsCounter, 157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 889 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 18:43:04,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro --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 8e703c0c99512c9025402351b79a41accf5bd6b8dfef03fa3544178837b891c9 --- 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-8393723 [2022-11-18 18:43:07,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:43:07,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:43:07,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:43:07,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:43:07,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:43:07,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:43:07,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:43:07,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:43:07,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:43:07,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:43:07,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:43:07,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:43:07,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:43:07,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:43:07,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:43:07,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:43:07,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:43:07,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:43:07,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:43:07,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:43:07,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:43:07,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:43:07,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:43:07,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:43:07,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:43:07,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:43:07,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:43:07,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:43:07,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:43:07,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:43:07,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:43:07,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:43:07,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:43:07,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:43:07,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:43:07,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:43:07,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:43:07,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:43:07,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:43:07,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:43:07,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 18:43:07,180 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:43:07,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:43:07,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:43:07,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:43:07,183 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:43:07,183 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:43:07,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:43:07,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:43:07,185 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:43:07,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:43:07,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:43:07,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:43:07,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:43:07,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:43:07,188 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:43:07,188 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:43:07,188 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:43:07,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:43:07,188 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:43:07,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:43:07,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:43:07,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:43:07,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:43:07,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:43:07,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:43:07,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:43:07,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:43:07,190 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:43:07,190 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:43:07,191 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:43:07,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:43:07,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:43:07,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:43:07,192 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e703c0c99512c9025402351b79a41accf5bd6b8dfef03fa3544178837b891c9 [2022-11-18 18:43:07,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:43:07,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:43:07,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:43:07,675 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:43:07,678 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:43:07,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-18 18:43:07,775 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data/62bb7ae4c/ea4c04b6778847c59df2fd51201843b6/FLAGd22f7f550 [2022-11-18 18:43:08,485 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:43:08,486 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-18 18:43:08,496 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data/62bb7ae4c/ea4c04b6778847c59df2fd51201843b6/FLAGd22f7f550 [2022-11-18 18:43:08,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/data/62bb7ae4c/ea4c04b6778847c59df2fd51201843b6 [2022-11-18 18:43:08,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:43:08,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:43:08,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:43:08,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:43:08,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:43:08,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:43:08" (1/1) ... [2022-11-18 18:43:08,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6181f650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:08, skipping insertion in model container [2022-11-18 18:43:08,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:43:08" (1/1) ... [2022-11-18 18:43:08,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:43:08,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:43:09,029 WARN L234 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_570d491c-8f25-4601-b3f8-8d9ec4410ecd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c[1014,1027] [2022-11-18 18:43:09,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:43:09,267 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:43:09,278 WARN L234 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_570d491c-8f25-4601-b3f8-8d9ec4410ecd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-func-interl.c[1014,1027] [2022-11-18 18:43:09,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:43:09,356 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:43:09,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09 WrapperNode [2022-11-18 18:43:09,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:43:09,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:43:09,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:43:09,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:43:09,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,472 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-11-18 18:43:09,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:43:09,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:43:09,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:43:09,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:43:09,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,570 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:43:09,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:43:09,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:43:09,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:43:09,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (1/1) ... [2022-11-18 18:43:09,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:43:09,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:43:09,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:43:09,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:43:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:43:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:43:09,870 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:43:09,872 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:43:10,544 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:43:10,552 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:43:10,552 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:43:10,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:10 BoogieIcfgContainer [2022-11-18 18:43:10,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:43:10,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:43:10,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:43:10,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:43:10,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:43:08" (1/3) ... [2022-11-18 18:43:10,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7550c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:43:10, skipping insertion in model container [2022-11-18 18:43:10,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:09" (2/3) ... [2022-11-18 18:43:10,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7550c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:43:10, skipping insertion in model container [2022-11-18 18:43:10,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:10" (3/3) ... [2022-11-18 18:43:10,569 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.6.prop1-func-interl.c [2022-11-18 18:43:10,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:43:10,594 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:43:10,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:43:10,656 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;@60e55ec2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:43:10,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:43:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:10,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 18:43:10,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:10,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 18:43:10,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:10,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:10,679 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 18:43:10,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:10,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001052694] [2022-11-18 18:43:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:10,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:10,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:10,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:43:10,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 18:43:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:10,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 18:43:10,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:43:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:11,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:43:11,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:43:11,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001052694] [2022-11-18 18:43:11,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001052694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:11,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:11,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:43:11,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145462363] [2022-11-18 18:43:11,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:11,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:43:11,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:43:11,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:43:11,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:43:11,455 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:11,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:11,593 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-18 18:43:11,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:43:11,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 18:43:11,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:11,605 INFO L225 Difference]: With dead ends: 20 [2022-11-18 18:43:11,606 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 18:43:11,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:43:11,616 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:11,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:43:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 18:43:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-18 18:43:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:11,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-18 18:43:11,653 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-18 18:43:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:11,654 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-18 18:43:11,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:11,654 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-18 18:43:11,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 18:43:11,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:11,655 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:11,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:43:11,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:11,878 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:11,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-18 18:43:11,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:43:11,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133641478] [2022-11-18 18:43:11,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:11,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:11,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:43:11,885 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:43:11,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 18:43:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:12,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-18 18:43:12,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:11,895 WARN L233 SmtUtils]: Spent 58.45s on a formula simplification. DAG size of input: 148 DAG size of output: 145 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:44:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:12,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:44:15,615 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~var_137_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_138_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_123_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_89_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_109_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_86_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_91_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_99_arg_1~0#1_3| (_ BitVec 8))) (= ((_ extract 7 0) (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_137_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_99_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_23~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_37~0#1|)))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_89_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_86_arg_0~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_17~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_38~0#1|)))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_91_arg_1~0#1_3|)))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_109_arg_1~0#1_4|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_3|))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_138_arg_1~0#1_4|))))))) .cse0))))))))) (_ bv1 32)))) .cse0))) (_ bv0 8))) (let ((.cse7 (bvnot (bvlshr |c_ULTIMATE.start_main_~mask_SORT_4~0#1| |c_ULTIMATE.start_main_~var_32~0#1|))) (.cse8 (bvnot |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)) (.cse9 ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_28~0#1|)) (.cse14 (= |c_ULTIMATE.start_main_~input_37~0#1| (_ bv0 8)))) (let ((.cse1 (= |c_ULTIMATE.start_main_~input_38~0#1| (_ bv0 8))) (.cse3 (not .cse14)) (.cse2 (or (and (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse12 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand (bvashr (bvand .cse12 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|)) (not (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse12)))))) (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse13 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse13 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)) (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse13)))))) .cse14))) (and (or (not .cse1) (and .cse2 (or .cse3 (let ((.cse5 (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_29~0#1|))))) .cse9))) .cse9))) (_ bv16 32)))) (and (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse4 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse4) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| .cse4) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse6 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse6) (_ bv0 32)) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse6 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)))))))))) (or .cse1 (and (or .cse3 (and (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse10 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand .cse10 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32)) (not (= (bvand (bvor .cse7 (bvashr (bvor .cse10 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse11 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand .cse11 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand .cse11 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))))) .cse2)))))) is different from false [2022-11-18 18:45:31,388 WARN L233 SmtUtils]: Spent 1.20m on a formula simplification that was a NOOP. DAG size: 227 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:45:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-18 18:45:31,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:45:31,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133641478] [2022-11-18 18:45:31,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133641478] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:45:31,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:45:31,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 18:45:31,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725128945] [2022-11-18 18:45:31,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:45:31,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:45:31,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:45:31,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:45:31,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=53, Unknown=2, NotChecked=14, Total=90 [2022-11-18 18:45:31,563 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:32,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:32,205 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-18 18:45:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:45:32,206 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 18:45:32,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:32,207 INFO L225 Difference]: With dead ends: 14 [2022-11-18 18:45:32,207 INFO L226 Difference]: Without dead ends: 12 [2022-11-18 18:45:32,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.4s TimeCoverageRelationStatistics Valid=29, Invalid=63, Unknown=2, NotChecked=16, Total=110 [2022-11-18 18:45:32,208 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:32,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2022-11-18 18:45:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-18 18:45:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 18:45:32,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:32,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 18:45:32,218 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-18 18:45:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:32,223 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 18:45:32,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:32,224 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-18 18:45:32,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 18:45:32,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:45:32,225 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-18 18:45:32,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:32,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:45:32,448 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:45:32,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:45:32,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-18 18:45:32,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:45:32,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857297338] [2022-11-18 18:45:32,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:45:32,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:45:32,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:45:32,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:45:32,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 18:45:32,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:45:32,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:45:32,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-18 18:45:33,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:46:10,070 WARN L233 SmtUtils]: Spent 34.62s on a formula simplification that was a NOOP. DAG size: 192 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:47:07,557 WARN L233 SmtUtils]: Spent 52.83s on a formula simplification. DAG size of input: 215 DAG size of output: 202 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:49:32,968 WARN L233 SmtUtils]: Spent 2.32m on a formula simplification that was a NOOP. DAG size: 524 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:49:34,596 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:34,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:49:48,489 WARN L233 SmtUtils]: Spent 12.00s on a formula simplification. DAG size of input: 221 DAG size of output: 207 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:51:13,310 WARN L233 SmtUtils]: Spent 1.33m on a formula simplification that was a NOOP. DAG size: 217 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:53:45,361 WARN L233 SmtUtils]: Spent 2.46m on a formula simplification that was a NOOP. DAG size: 440 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:56:09,879 WARN L233 SmtUtils]: Spent 2.18m on a formula simplification that was a NOOP. DAG size: 604 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:56:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:56:10,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:56:10,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857297338] [2022-11-18 18:56:10,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857297338] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:56:10,218 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:56:10,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-18 18:56:10,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028359377] [2022-11-18 18:56:10,218 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 18:56:10,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 18:56:10,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:56:10,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 18:56:10,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=137, Unknown=7, NotChecked=0, Total=182 [2022-11-18 18:56:10,221 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:56:31,962 WARN L233 SmtUtils]: Spent 20.39s on a formula simplification that was a NOOP. DAG size: 204 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 18:56:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:56:32,000 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-18 18:56:32,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:56:32,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 18:56:32,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:56:32,001 INFO L225 Difference]: With dead ends: 17 [2022-11-18 18:56:32,001 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 18:56:32,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 642.5s TimeCoverageRelationStatistics Valid=55, Invalid=178, Unknown=7, NotChecked=0, Total=240 [2022-11-18 18:56:32,003 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:56:32,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 28 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-18 18:56:32,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 18:56:32,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 18:56:32,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:56:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 18:56:32,025 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-18 18:56:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:56:32,025 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 18:56:32,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:56:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 18:56:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 18:56:32,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:56:32,026 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-18 18:56:32,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 18:56:32,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:32,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:56:32,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:56:32,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-18 18:56:32,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:56:32,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284360054] [2022-11-18 18:56:32,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:56:32,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:56:32,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:56:32,247 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:56:32,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570d491c-8f25-4601-b3f8-8d9ec4410ecd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 18:56:32,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 18:56:32,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:56:32,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 289 conjunts are in the unsatisfiable core [2022-11-18 18:56:32,848 INFO L286 TraceCheckSpWp]: Computing forward predicates...