./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/count_by_1_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ --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 32bit --witnessprinter.graph.data.programhash 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 --- 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-dbf71c6-m [2022-10-17 10:19:44,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:19:44,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:19:44,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:19:44,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:19:44,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:19:44,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:19:44,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:19:44,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:19:44,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:19:44,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:19:44,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:19:44,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:19:44,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:19:44,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:19:44,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:19:44,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:19:44,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:19:44,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:19:44,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:19:44,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:19:44,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:19:44,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:19:44,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:19:44,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:19:44,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:19:44,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:19:44,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:19:44,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:19:44,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:19:44,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:19:44,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:19:44,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:19:44,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:19:44,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:19:44,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:19:44,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:19:44,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:19:44,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:19:44,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:19:44,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:19:44,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:19:44,814 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:19:44,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:19:44,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:19:44,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:19:44,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:19:44,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:19:44,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:19:44,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:19:44,818 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:19:44,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:19:44,819 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:19:44,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:19:44,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:19:44,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:19:44,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:19:44,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:19:44,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:19:44,821 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:19:44,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:19:44,822 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:19:44,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:19:44,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:19:44,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:19:44,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:19:44,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:19:44,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:19:44,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:19:44,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:19:44,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:19:44,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:19:44,826 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:19:44,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:19:44,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:19:44,826 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_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 [2022-10-17 10:19:45,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:19:45,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:19:45,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:19:45,133 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:19:45,134 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:19:45,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/loop-new/count_by_1_variant.i [2022-10-17 10:19:45,199 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/data/32165a12a/8b81906f29ae41b0a033f3d1d11e825b/FLAGf8fe213a7 [2022-10-17 10:19:45,662 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:19:45,662 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/sv-benchmarks/c/loop-new/count_by_1_variant.i [2022-10-17 10:19:45,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/data/32165a12a/8b81906f29ae41b0a033f3d1d11e825b/FLAGf8fe213a7 [2022-10-17 10:19:46,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/data/32165a12a/8b81906f29ae41b0a033f3d1d11e825b [2022-10-17 10:19:46,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:19:46,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:19:46,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:19:46,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:19:46,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:19:46,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176f9ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46, skipping insertion in model container [2022-10-17 10:19:46,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:19:46,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:19:46,341 WARN L230 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_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/sv-benchmarks/c/loop-new/count_by_1_variant.i[891,904] [2022-10-17 10:19:46,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:19:46,359 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:19:46,370 WARN L230 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_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/sv-benchmarks/c/loop-new/count_by_1_variant.i[891,904] [2022-10-17 10:19:46,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:19:46,385 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:19:46,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46 WrapperNode [2022-10-17 10:19:46,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:19:46,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:19:46,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:19:46,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:19:46,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,418 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-10-17 10:19:46,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:19:46,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:19:46,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:19:46,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:19:46,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,433 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:19:46,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:19:46,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:19:46,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:19:46,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (1/1) ... [2022-10-17 10:19:46,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:19:46,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:46,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:19:46,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:19:46,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:19:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:19:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:19:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:19:46,564 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:19:46,567 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:19:46,693 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:19:46,699 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:19:46,700 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:19:46,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:19:46 BoogieIcfgContainer [2022-10-17 10:19:46,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:19:46,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:19:46,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:19:46,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:19:46,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:19:46" (1/3) ... [2022-10-17 10:19:46,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fd8fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:19:46, skipping insertion in model container [2022-10-17 10:19:46,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:46" (2/3) ... [2022-10-17 10:19:46,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fd8fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:19:46, skipping insertion in model container [2022-10-17 10:19:46,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:19:46" (3/3) ... [2022-10-17 10:19:46,712 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2022-10-17 10:19:46,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:19:46,733 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:19:46,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:19:46,817 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;@79786df4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:19:46,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:19:46,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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) [2022-10-17 10:19:46,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:19:46,835 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:19:46,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:19:46,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:19:46,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:19:46,845 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-10-17 10:19:46,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:19:46,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580787526] [2022-10-17 10:19:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:19:46,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:19:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:19:47,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:19:47,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:19:47,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580787526] [2022-10-17 10:19:47,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580787526] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:19:47,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:19:47,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:19:47,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600618661] [2022-10-17 10:19:47,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:19:47,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:19:47,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:19:47,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:19:47,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:19:47,291 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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) 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) [2022-10-17 10:19:47,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:19:47,359 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2022-10-17 10:19:47,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:19:47,362 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 [2022-10-17 10:19:47,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:19:47,371 INFO L225 Difference]: With dead ends: 30 [2022-10-17 10:19:47,371 INFO L226 Difference]: Without dead ends: 12 [2022-10-17 10:19:47,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:19:47,379 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:19:47,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 24 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:19:47,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-10-17 10:19:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2022-10-17 10:19:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2022-10-17 10:19:47,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-10-17 10:19:47,413 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-10-17 10:19:47,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:19:47,414 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-10-17 10:19:47,414 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) [2022-10-17 10:19:47,414 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-10-17 10:19:47,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 10:19:47,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:19:47,415 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:19:47,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:19:47,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:19:47,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:19:47,417 INFO L85 PathProgramCache]: Analyzing trace with hash -185344033, now seen corresponding path program 1 times [2022-10-17 10:19:47,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:19:47,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430873791] [2022-10-17 10:19:47,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:19:47,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:19:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:19:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:19:47,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:19:47,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430873791] [2022-10-17 10:19:47,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430873791] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:19:47,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522712588] [2022-10-17 10:19:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:19:47,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:19:47,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:19:47,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:19:47,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:19:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:19:47,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:19:47,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:19:47,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:19:47,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:19:47,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:19:47,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522712588] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:19:47,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:19:47,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-17 10:19:47,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484790109] [2022-10-17 10:19:47,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:19:47,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:19:47,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:19:47,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:19:47,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:19:47,756 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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) [2022-10-17 10:19:47,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:19:47,868 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-10-17 10:19:47,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:19:47,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 9 [2022-10-17 10:19:47,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:19:47,869 INFO L225 Difference]: With dead ends: 17 [2022-10-17 10:19:47,870 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 10:19:47,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:19:47,872 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:19:47,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 10 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:19:47,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 10:19:47,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 10:19:47,878 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) [2022-10-17 10:19:47,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:19:47,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-10-17 10:19:47,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:19:47,879 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:19:47,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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) [2022-10-17 10:19:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:19:47,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 10:19:47,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:19:47,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:19:48,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:19:48,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 10:19:48,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 10:19:48,169 INFO L895 garLoopResultBuilder]: At program point L29(lines 24 30) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| 1000000) [2022-10-17 10:19:48,169 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-10-17 10:19:48,170 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-17 10:19:48,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-17 10:19:48,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-17 10:19:48,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-10-17 10:19:48,170 INFO L899 garLoopResultBuilder]: For program point L26-2(lines 26 28) no Hoare annotation was computed. [2022-10-17 10:19:48,171 INFO L895 garLoopResultBuilder]: At program point L26-3(lines 26 28) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000000)) (= |ULTIMATE.start_main_~i~0#1| 0)) [2022-10-17 10:19:48,171 INFO L899 garLoopResultBuilder]: For program point L26-4(lines 26 28) no Hoare annotation was computed. [2022-10-17 10:19:48,171 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-10-17 10:19:48,172 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| 1000000)) [2022-10-17 10:19:48,180 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 10:19:48,182 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:19:48,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:19:48 BoogieIcfgContainer [2022-10-17 10:19:48,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:19:48,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:19:48,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:19:48,202 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:19:48,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:19:46" (3/4) ... [2022-10-17 10:19:48,205 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 10:19:48,215 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-10-17 10:19:48,215 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-10-17 10:19:48,215 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 10:19:48,216 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 10:19:48,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:19:48,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:19:48,251 INFO L158 Benchmark]: Toolchain (without parser) took 2198.34ms. Allocated memory is still 98.6MB. Free memory was 59.3MB in the beginning and 53.2MB in the end (delta: 6.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-10-17 10:19:48,251 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 75.7MB in the beginning and 75.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:19:48,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.46ms. Allocated memory is still 98.6MB. Free memory was 59.0MB in the beginning and 75.2MB in the end (delta: -16.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 10:19:48,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.67ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 73.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:19:48,252 INFO L158 Benchmark]: Boogie Preprocessor took 16.45ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 72.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:19:48,252 INFO L158 Benchmark]: RCFGBuilder took 265.78ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 64.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:19:48,253 INFO L158 Benchmark]: TraceAbstraction took 1496.35ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 55.8MB in the end (delta: 7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:19:48,253 INFO L158 Benchmark]: Witness Printer took 48.63ms. Allocated memory is still 98.6MB. Free memory was 55.8MB in the beginning and 53.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:19:48,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 75.7MB in the beginning and 75.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.46ms. Allocated memory is still 98.6MB. Free memory was 59.0MB in the beginning and 75.2MB in the end (delta: -16.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.67ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 73.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.45ms. Allocated memory is still 98.6MB. Free memory was 73.9MB in the beginning and 72.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.78ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 64.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1496.35ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 55.8MB in the end (delta: 7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 48.63ms. Allocated memory is still 98.6MB. Free memory was 55.8MB in the beginning and 53.2MB in the end (delta: 2.6MB). 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: 19]: 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 16 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 12 NumberOfFragments, 21 HoareAnnotationTreeSize, 3 FomulaSimplifications, 64 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 2 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 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: 17]: Loop Invariant Derived loop invariant: 1 <= cond && i < 1000000 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: i <= 1000000 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (1 <= cond && i <= 1000000) || i == 0 RESULT: Ultimate proved your program to be correct! [2022-10-17 10:19:48,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc5d04e-1e1b-4693-a0a0-4ea3357978bb/bin/uautomizer-J5u9QxTXDZ/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