./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3f80ae0ffd409ff2e33efb5f94d125906ee99568b94f1fb765fcd8cdc265af1c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:09:31,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:09:31,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:09:31,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:09:31,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:09:31,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:09:31,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:09:31,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:09:31,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:09:31,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:09:31,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:09:31,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:09:31,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:09:31,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:09:31,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:09:31,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:09:31,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:09:31,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:09:31,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:09:31,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:09:31,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:09:31,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:09:31,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:09:31,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:09:31,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:09:31,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:09:31,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:09:31,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:09:31,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:09:31,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:09:31,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:09:31,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:09:31,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:09:31,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:09:31,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:09:31,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:09:31,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:09:31,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:09:31,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:09:31,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:09:31,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:09:31,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:09:31,738 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:09:31,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:09:31,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:09:31,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:09:31,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:09:31,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:09:31,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:09:31,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:09:31,744 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:09:31,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:09:31,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:09:31,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:09:31,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:09:31,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:09:31,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:09:31,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:09:31,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:09:31,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:09:31,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:09:31,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:09:31,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:09:31,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:09:31,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:09:31,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:09:31,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:09:31,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:09:31,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:09:31,755 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:09:31,755 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:09:31,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:09:31,756 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_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f80ae0ffd409ff2e33efb5f94d125906ee99568b94f1fb765fcd8cdc265af1c [2022-11-16 11:09:32,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:09:32,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:09:32,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:09:32,272 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:09:32,274 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:09:32,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2022-11-16 11:09:32,379 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data/a8fc86752/50ec2c6c6c94403db9d536d0aa2e30c1/FLAGd16138026 [2022-11-16 11:09:33,119 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:09:33,120 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2022-11-16 11:09:33,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data/a8fc86752/50ec2c6c6c94403db9d536d0aa2e30c1/FLAGd16138026 [2022-11-16 11:09:33,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data/a8fc86752/50ec2c6c6c94403db9d536d0aa2e30c1 [2022-11-16 11:09:33,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:09:33,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:09:33,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:09:33,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:09:33,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:09:33,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed813ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33, skipping insertion in model container [2022-11-16 11:09:33,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:09:33,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:09:33,492 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1107,1120] [2022-11-16 11:09:33,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:09:33,567 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:09:33,584 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1107,1120] [2022-11-16 11:09:33,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:09:33,639 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:09:33,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33 WrapperNode [2022-11-16 11:09:33,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:09:33,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:09:33,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:09:33,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:09:33,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,747 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 180 [2022-11-16 11:09:33,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:09:33,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:09:33,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:09:33,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:09:33,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:09:33,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:09:33,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:09:33,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:09:33,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (1/1) ... [2022-11-16 11:09:33,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:09:33,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:09:33,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:09:33,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:09:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:09:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:09:34,069 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:09:34,073 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:09:34,560 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:09:34,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:09:34,589 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:09:34,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:34 BoogieIcfgContainer [2022-11-16 11:09:34,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:09:34,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:09:34,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:09:34,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:09:34,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:09:33" (1/3) ... [2022-11-16 11:09:34,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617b97ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:09:34, skipping insertion in model container [2022-11-16 11:09:34,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:33" (2/3) ... [2022-11-16 11:09:34,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617b97ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:09:34, skipping insertion in model container [2022-11-16 11:09:34,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:34" (3/3) ... [2022-11-16 11:09:34,611 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b06.c [2022-11-16 11:09:34,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:09:34,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:09:34,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:09:34,776 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;@62e0854e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:09:34,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:09:34,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.6) internal successors, (48), 31 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:34,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 11:09:34,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:34,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:34,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:09:34,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:34,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1428179117, now seen corresponding path program 1 times [2022-11-16 11:09:34,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:34,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112611746] [2022-11-16 11:09:34,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:34,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:35,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:35,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112611746] [2022-11-16 11:09:35,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112611746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:35,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:35,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:09:35,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571625815] [2022-11-16 11:09:35,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:35,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:09:35,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:35,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:09:35,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:09:35,795 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.6) internal successors, (48), 31 states have internal predecessors, (48), 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 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:35,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:35,918 INFO L93 Difference]: Finished difference Result 94 states and 152 transitions. [2022-11-16 11:09:35,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:09:35,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Word has length 13 [2022-11-16 11:09:35,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:35,935 INFO L225 Difference]: With dead ends: 94 [2022-11-16 11:09:35,936 INFO L226 Difference]: Without dead ends: 64 [2022-11-16 11:09:35,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:09:35,947 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 102 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:35,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 133 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:09:35,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-16 11:09:35,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 30. [2022-11-16 11:09:35,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:35,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2022-11-16 11:09:35,999 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 13 [2022-11-16 11:09:36,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:36,000 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2022-11-16 11:09:36,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:36,001 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2022-11-16 11:09:36,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:09:36,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:36,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:36,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:09:36,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:09:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:36,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1325604663, now seen corresponding path program 1 times [2022-11-16 11:09:36,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:36,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179767023] [2022-11-16 11:09:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:36,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:09:36,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:09:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:09:36,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:09:36,140 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:09:36,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:09:36,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:09:36,150 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 11:09:36,155 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:09:36,204 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 11:09:36,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:09:36 BoogieIcfgContainer [2022-11-16 11:09:36,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:09:36,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:09:36,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:09:36,217 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:09:36,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:34" (3/4) ... [2022-11-16 11:09:36,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:09:36,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:09:36,224 INFO L158 Benchmark]: Toolchain (without parser) took 3049.68ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 58.6MB in the beginning and 58.8MB in the end (delta: -208.1kB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-11-16 11:09:36,225 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 94.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:09:36,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.66ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 69.4MB in the end (delta: -11.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 11:09:36,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.06ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 66.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:09:36,227 INFO L158 Benchmark]: Boogie Preprocessor took 40.65ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 65.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:09:36,228 INFO L158 Benchmark]: RCFGBuilder took 803.43ms. Allocated memory is still 94.4MB. Free memory was 65.2MB in the beginning and 48.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 11:09:36,229 INFO L158 Benchmark]: TraceAbstraction took 1619.57ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 48.0MB in the beginning and 59.4MB in the end (delta: -11.4MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2022-11-16 11:09:36,229 INFO L158 Benchmark]: Witness Printer took 6.00ms. Allocated memory is still 121.6MB. Free memory was 59.4MB in the beginning and 58.8MB in the end (delta: 593.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:09:36,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 94.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.66ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 69.4MB in the end (delta: -11.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.06ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 66.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.65ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 65.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 803.43ms. Allocated memory is still 94.4MB. Free memory was 65.2MB in the beginning and 48.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1619.57ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 48.0MB in the beginning and 59.4MB in the end (delta: -11.4MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Witness Printer took 6.00ms. Allocated memory is still 121.6MB. Free memory was 59.4MB in the beginning and 58.8MB in the end (delta: 593.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 85, overapproximation of bitwiseAnd at line 83. 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_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 2); [L29] const SORT_11 msb_SORT_11 = (SORT_11)1 << (2 - 1); [L31] const SORT_15 mask_SORT_15 = (SORT_15)-1 >> (sizeof(SORT_15) * 8 - 32); [L32] const SORT_15 msb_SORT_15 = (SORT_15)1 << (32 - 1); [L34] const SORT_1 var_5 = 0; [L35] const SORT_11 var_12 = 0; [L36] const SORT_15 var_17 = 2; [L37] const SORT_1 var_22 = 1; [L38] const SORT_11 var_39 = 1; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L42] SORT_1 input_4; [L43] SORT_11 input_26; [L44] SORT_11 input_40; [L45] SORT_1 input_45; [L47] SORT_1 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] SORT_11 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L50] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L52] SORT_1 init_7_arg_1 = var_5; [L53] state_6 = init_7_arg_1 [L54] SORT_1 init_9_arg_1 = var_5; [L55] state_8 = init_9_arg_1 [L56] SORT_11 init_14_arg_1 = var_12; [L57] state_13 = init_14_arg_1 [L58] SORT_1 init_32_arg_1 = var_5; [L59] state_31 = init_32_arg_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_11=3, mask_SORT_15=4294967295, msb_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L62] input_2 = __VERIFIER_nondet_uchar() [L63] input_2 = input_2 & mask_SORT_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, mask_SORT_1=1, mask_SORT_11=3, mask_SORT_15=4294967295, msb_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L64] input_3 = __VERIFIER_nondet_uchar() [L65] input_3 = input_3 & mask_SORT_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_11=3, mask_SORT_15=4294967295, msb_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L66] input_4 = __VERIFIER_nondet_uchar() [L67] input_26 = __VERIFIER_nondet_uchar() [L68] input_40 = __VERIFIER_nondet_uchar() [L69] input_45 = __VERIFIER_nondet_uchar() [L72] SORT_1 var_10_arg_0 = state_6; [L73] SORT_1 var_10_arg_1 = state_8; [L74] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L75] SORT_11 var_16_arg_0 = state_13; VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_26=3, input_3=0, input_4=4, input_40=1, input_45=2, mask_SORT_1=1, mask_SORT_11=3, mask_SORT_15=4294967295, msb_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16_arg_0=0, var_17=2, var_22=1, var_39=1, var_5=0] [L76] var_16_arg_0 = var_16_arg_0 & mask_SORT_11 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_26=3, input_3=0, input_4=4, input_40=1, input_45=2, mask_SORT_1=1, mask_SORT_11=3, mask_SORT_15=4294967295, msb_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16_arg_0=0, var_17=2, var_22=1, var_39=1, var_5=0] [L77] SORT_15 var_16 = var_16_arg_0; [L78] SORT_15 var_18_arg_0 = var_16; [L79] SORT_15 var_18_arg_1 = var_17; [L80] SORT_1 var_18 = var_18_arg_0 != var_18_arg_1; [L81] SORT_1 var_19_arg_0 = var_10; [L82] SORT_1 var_19_arg_1 = var_18; [L83] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L84] SORT_1 var_23_arg_0 = var_19; [L85] SORT_1 var_23 = ~var_23_arg_0; [L86] SORT_1 var_24_arg_0 = var_22; [L87] SORT_1 var_24_arg_1 = var_23; [L88] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_26=3, input_3=0, input_4=4, input_40=1, input_45=2, mask_SORT_1=1, mask_SORT_11=3, mask_SORT_15=4294967295, msb_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16=0, var_16_arg_0=0, var_17=2, var_18=1, var_18_arg_0=0, var_18_arg_1=2, var_19=1, var_19_arg_0=1, var_19_arg_1=1, var_22=1, var_23=2, var_23_arg_0=1, var_24=1, var_24_arg_0=1, var_24_arg_1=2, var_39=1, var_5=0] [L89] var_24 = var_24 & mask_SORT_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_26=3, input_3=0, input_4=4, input_40=1, input_45=2, mask_SORT_1=1, mask_SORT_11=3, mask_SORT_15=4294967295, msb_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16=0, var_16_arg_0=0, var_17=2, var_18=1, var_18_arg_0=0, var_18_arg_1=2, var_19=1, var_19_arg_0=1, var_19_arg_1=1, var_22=1, var_23=2, var_23_arg_0=1, var_24=1, var_24_arg_0=1, var_24_arg_1=2, var_39=1, var_5=0] [L90] SORT_1 bad_25_arg_0 = var_24; [L91] CALL __VERIFIER_assert(!(bad_25_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, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 133 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 60 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:09:36,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3f80ae0ffd409ff2e33efb5f94d125906ee99568b94f1fb765fcd8cdc265af1c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:09:39,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:09:39,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:09:39,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:09:39,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:09:39,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:09:39,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:09:39,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:09:39,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:09:39,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:09:39,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:09:39,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:09:39,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:09:39,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:09:39,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:09:39,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:09:39,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:09:39,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:09:39,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:09:39,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:09:39,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:09:39,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:09:39,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:09:39,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:09:39,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:09:39,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:09:39,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:09:39,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:09:39,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:09:39,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:09:39,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:09:39,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:09:39,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:09:39,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:09:39,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:09:39,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:09:39,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:09:39,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:09:39,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:09:39,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:09:39,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:09:39,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 11:09:39,544 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:09:39,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:09:39,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:09:39,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:09:39,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:09:39,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:09:39,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:09:39,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:09:39,548 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:09:39,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:09:39,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:09:39,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:09:39,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:09:39,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:09:39,550 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:09:39,551 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:09:39,551 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:09:39,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:09:39,551 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:09:39,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:09:39,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:09:39,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:09:39,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:09:39,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:09:39,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:09:39,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:09:39,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:09:39,554 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:09:39,554 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:09:39,555 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:09:39,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:09:39,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:09:39,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:09:39,556 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_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f80ae0ffd409ff2e33efb5f94d125906ee99568b94f1fb765fcd8cdc265af1c [2022-11-16 11:09:40,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:09:40,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:09:40,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:09:40,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:09:40,227 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:09:40,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2022-11-16 11:09:40,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data/fc19aa5c2/6b92ff3cb442413dbf4231c7ffc89bde/FLAG8929bbd7b [2022-11-16 11:09:41,205 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:09:41,206 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2022-11-16 11:09:41,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data/fc19aa5c2/6b92ff3cb442413dbf4231c7ffc89bde/FLAG8929bbd7b [2022-11-16 11:09:41,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/data/fc19aa5c2/6b92ff3cb442413dbf4231c7ffc89bde [2022-11-16 11:09:41,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:09:41,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:09:41,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:09:41,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:09:41,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:09:41,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:41,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7162bd37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41, skipping insertion in model container [2022-11-16 11:09:41,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:41,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:09:41,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:09:41,714 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1107,1120] [2022-11-16 11:09:41,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:09:41,806 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:09:41,857 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1107,1120] [2022-11-16 11:09:41,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:09:41,963 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:09:41,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41 WrapperNode [2022-11-16 11:09:41,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:09:41,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:09:41,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:09:41,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:09:41,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,051 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 131 [2022-11-16 11:09:42,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:09:42,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:09:42,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:09:42,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:09:42,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,089 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:09:42,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:09:42,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:09:42,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:09:42,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (1/1) ... [2022-11-16 11:09:42,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:09:42,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:09:42,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:09:42,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:09:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:09:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:09:42,391 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:09:42,394 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:09:42,762 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:09:42,787 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:09:42,802 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:09:42,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:42 BoogieIcfgContainer [2022-11-16 11:09:42,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:09:42,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:09:42,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:09:42,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:09:42,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:09:41" (1/3) ... [2022-11-16 11:09:42,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d18a23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:09:42, skipping insertion in model container [2022-11-16 11:09:42,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:41" (2/3) ... [2022-11-16 11:09:42,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d18a23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:09:42, skipping insertion in model container [2022-11-16 11:09:42,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:42" (3/3) ... [2022-11-16 11:09:42,836 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b06.c [2022-11-16 11:09:42,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:09:42,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:09:43,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:09:43,046 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;@5b466e2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:09:43,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:09:43,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:43,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:09:43,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:43,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:09:43,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:09:43,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 11:09:43,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:43,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306568861] [2022-11-16 11:09:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:43,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:43,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:43,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:43,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 11:09:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:43,320 WARN L261 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-16 11:09:43,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:43,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:43,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:09:43,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:43,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306568861] [2022-11-16 11:09:43,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306568861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:43,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:43,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:09:43,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429553219] [2022-11-16 11:09:43,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:43,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:09:43,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:43,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:09:43,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:09:43,910 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:44,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:44,052 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 11:09:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:09:44,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 11:09:44,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:44,073 INFO L225 Difference]: With dead ends: 20 [2022-11-16 11:09:44,086 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 11:09:44,091 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 [2022-11-16 11:09:44,096 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:44,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:09:44,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 11:09:44,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 11:09:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:44,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 11:09:44,164 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 11:09:44,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:44,165 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 11:09:44,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 11:09:44,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 11:09:44,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:44,168 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:44,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:44,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:44,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:09:44,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:44,385 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 11:09:44,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:44,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241232369] [2022-11-16 11:09:44,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:44,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:44,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:44,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:44,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 11:09:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:44,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-16 11:09:44,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:45,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:45,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:09:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:47,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:47,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241232369] [2022-11-16 11:09:47,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241232369] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:09:47,165 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:09:47,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2022-11-16 11:09:47,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859425824] [2022-11-16 11:09:47,166 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:09:47,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:09:47,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:47,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:09:47,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:09:47,170 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:47,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:47,254 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 11:09:47,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:09:47,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 11:09:47,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:47,257 INFO L225 Difference]: With dead ends: 16 [2022-11-16 11:09:47,257 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 11:09:47,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:09:47,260 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:47,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 26 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2022-11-16 11:09:47,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 11:09:47,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 11:09:47,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 11:09:47,268 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 11:09:47,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:47,269 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 11:09:47,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:47,270 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 11:09:47,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:09:47,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:47,271 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 11:09:47,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:47,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:47,493 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:09:47,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:47,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 11:09:47,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:47,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276756041] [2022-11-16 11:09:47,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:09:47,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:47,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:47,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:47,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 11:09:47,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:09:47,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:09:47,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-16 11:09:47,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:48,664 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:48,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:09:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:51,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:51,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276756041] [2022-11-16 11:09:51,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276756041] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:09:51,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:09:51,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2022-11-16 11:09:51,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345514946] [2022-11-16 11:09:51,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:09:51,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:09:51,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:09:51,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:09:51,151 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:51,599 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-16 11:09:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:09:51,601 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 11:09:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:51,602 INFO L225 Difference]: With dead ends: 19 [2022-11-16 11:09:51,603 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 11:09:51,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:09:51,604 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:51,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 29 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 18 Unchecked, 0.1s Time] [2022-11-16 11:09:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 11:09:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 11:09:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 11:09:51,621 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 11:09:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:51,623 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 11:09:51,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:51,623 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 11:09:51,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:09:51,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:51,625 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 11:09:51,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:51,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:51,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:09:51,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:51,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 11:09:51,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:51,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694850652] [2022-11-16 11:09:51,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:09:51,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:51,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:51,843 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:51,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 11:09:51,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 11:09:51,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:09:51,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-16 11:09:51,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 11:09:52,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:09:54,008 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 11:09:54,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:54,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694850652] [2022-11-16 11:09:54,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694850652] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:09:54,014 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:09:54,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 11:09:54,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890643806] [2022-11-16 11:09:54,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:09:54,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:09:54,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:54,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:09:54,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:09:54,021 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:54,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:54,238 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-16 11:09:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:09:54,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 11:09:54,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:54,244 INFO L225 Difference]: With dead ends: 15 [2022-11-16 11:09:54,244 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:09:54,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:09:54,247 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:54,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2022-11-16 11:09:54,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:09:54,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:09:54,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:09:54,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-16 11:09:54,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:54,251 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:09:54,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:54,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:09:54,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:09:54,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:09:54,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:54,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:54,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 11:09:54,753 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 11:09:54,754 INFO L895 garLoopResultBuilder]: At program point L60-2(lines 60 145) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~var_22~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_5~0#1| (_ bv0 8))) (.cse3 (= (_ bv1 8) |ULTIMATE.start_main_~var_39~0#1|)) (.cse4 (= |ULTIMATE.start_main_~state_8~0#1| (_ bv0 8))) (.cse8 (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_11~0#1|)) (.cse7 (= (_ bv0 8) |ULTIMATE.start_main_~state_13~0#1|)) (.cse5 (= |ULTIMATE.start_main_~state_6~0#1| (_ bv0 8))) (.cse9 (= (_ bv2 32) |ULTIMATE.start_main_~var_17~0#1|)) (.cse10 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 8)))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse3 (or (and .cse4 .cse5) (let ((.cse6 ((_ extract 7 0) (bvand (_ bv1 32) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))))) (and (= |ULTIMATE.start_main_~state_8~0#1| .cse6) (= |ULTIMATE.start_main_~state_6~0#1| .cse6)))) (or (= (_ bv1 8) |ULTIMATE.start_main_~state_13~0#1|) .cse7) .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse8 .cse7 .cse5 (= |ULTIMATE.start_main_~var_5~0#1| |ULTIMATE.start_main_~state_31~0#1|) .cse9 .cse10))) [2022-11-16 11:09:54,754 INFO L899 garLoopResultBuilder]: For program point L60-3(lines 60 145) no Hoare annotation was computed. [2022-11-16 11:09:54,754 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 11:09:54,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 11:09:54,755 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 11:09:54,755 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-16 11:09:54,755 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-16 11:09:54,755 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-16 11:09:54,755 INFO L895 garLoopResultBuilder]: At program point L146(lines 22 147) the Hoare annotation is: false [2022-11-16 11:09:54,756 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-16 11:09:54,767 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-16 11:09:54,770 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:09:54,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:09:54 BoogieIcfgContainer [2022-11-16 11:09:54,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:09:54,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:09:54,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:09:54,810 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:09:54,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:42" (3/4) ... [2022-11-16 11:09:54,816 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:09:54,836 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 11:09:54,836 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 11:09:54,837 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:09:54,935 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:09:54,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:09:54,936 INFO L158 Benchmark]: Toolchain (without parser) took 13452.91ms. Allocated memory was 69.2MB in the beginning and 138.4MB in the end (delta: 69.2MB). Free memory was 51.9MB in the beginning and 74.2MB in the end (delta: -22.3MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2022-11-16 11:09:54,937 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:09:54,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.91ms. Allocated memory is still 69.2MB. Free memory was 51.8MB in the beginning and 52.2MB in the end (delta: -429.8kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:09:54,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.39ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 50.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:09:54,938 INFO L158 Benchmark]: Boogie Preprocessor took 38.96ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 48.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:09:54,939 INFO L158 Benchmark]: RCFGBuilder took 711.15ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 34.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:09:54,940 INFO L158 Benchmark]: TraceAbstraction took 11990.61ms. Allocated memory was 69.2MB in the beginning and 138.4MB in the end (delta: 69.2MB). Free memory was 33.7MB in the beginning and 77.4MB in the end (delta: -43.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-11-16 11:09:54,940 INFO L158 Benchmark]: Witness Printer took 133.99ms. Allocated memory is still 138.4MB. Free memory was 77.4MB in the beginning and 74.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:09:54,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.91ms. Allocated memory is still 69.2MB. Free memory was 51.8MB in the beginning and 52.2MB in the end (delta: -429.8kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.39ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 50.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.96ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 48.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 711.15ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 34.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11990.61ms. Allocated memory was 69.2MB in the beginning and 138.4MB in the end (delta: 69.2MB). Free memory was 33.7MB in the beginning and 77.4MB in the end (delta: -43.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Witness Printer took 133.99ms. Allocated memory is still 138.4MB. Free memory was 77.4MB in the beginning and 74.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.8s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 31 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 18 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 30, 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, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 91 HoareAnnotationTreeSize, 2 FomulaSimplifications, 107 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 84 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 25 QuantifiedInterpolants, 2320 SizeOfPredicates, 211 NumberOfNonLiveVariables, 492 ConjunctsInSsa, 199 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 18/48 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (((((((((1bv8 == var_22 && 1bv8 == mask_SORT_1) && var_5 == 0bv8) && cond == 1bv32) && 1bv8 == var_39) && ((state_8 == 0bv8 && state_6 == 0bv8) || (state_8 == ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] && state_6 == ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && (1bv8 == state_13 || 0bv8 == state_13)) && 3bv8 == mask_SORT_11) && 2bv32 == var_17) && var_12 == 0bv8) || ((((((((((1bv8 == var_22 && 1bv8 == mask_SORT_1) && var_5 == 0bv8) && 1bv8 == var_39) && state_8 == 0bv8) && 3bv8 == mask_SORT_11) && 0bv8 == state_13) && state_6 == 0bv8) && var_5 == state_31) && 2bv32 == var_17) && var_12 == 0bv8) RESULT: Ultimate proved your program to be correct! [2022-11-16 11:09:55,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4468a82-47e8-4869-a830-e2c62d3ba71e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE