./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Haystacks-18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Haystacks-18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0 --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 f9a9ba623d3c8e76f720044f6cee806c2cbb3a59e31c97b7ec192a59b4bad2aa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:20:27,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:20:27,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:20:27,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:20:27,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:20:27,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:20:27,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:20:27,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:20:27,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:20:27,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:20:27,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:20:27,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:20:27,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:20:27,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:20:27,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:20:27,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:20:27,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:20:27,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:20:27,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:20:27,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:20:27,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:20:27,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:20:27,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:20:27,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:20:27,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:20:27,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:20:27,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:20:27,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:20:27,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:20:27,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:20:27,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:20:27,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:20:27,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:20:27,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:20:27,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:20:27,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:20:27,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:20:27,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:20:27,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:20:27,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:20:27,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:20:27,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:20:27,904 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:20:27,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:20:27,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:20:27,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:20:27,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:20:27,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:20:27,907 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:20:27,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:20:27,908 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:20:27,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:20:27,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:20:27,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:20:27,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:20:27,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:20:27,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:20:27,911 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:20:27,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:20:27,911 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:20:27,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:20:27,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:20:27,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:20:27,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:20:27,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:20:27,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:20:27,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:20:27,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:20:27,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:20:27,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:20:27,914 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:20:27,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:20:27,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:20:27,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:20:27,916 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_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9a9ba623d3c8e76f720044f6cee806c2cbb3a59e31c97b7ec192a59b4bad2aa [2021-11-22 15:20:28,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:20:28,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:20:28,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:20:28,363 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:20:28,364 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:20:28,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/xcsp/Haystacks-18.c [2021-11-22 15:20:28,455 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/data/e7bab8773/69f93f70a44f426fae79799d9ca195ca/FLAGed37c1243 [2021-11-22 15:20:29,371 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:20:29,373 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/sv-benchmarks/c/xcsp/Haystacks-18.c [2021-11-22 15:20:29,416 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/data/e7bab8773/69f93f70a44f426fae79799d9ca195ca/FLAGed37c1243 [2021-11-22 15:20:29,840 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/data/e7bab8773/69f93f70a44f426fae79799d9ca195ca [2021-11-22 15:20:29,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:20:29,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:20:29,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:20:29,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:20:29,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:20:29,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:20:29" (1/1) ... [2021-11-22 15:20:29,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27863870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:29, skipping insertion in model container [2021-11-22 15:20:29,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:20:29" (1/1) ... [2021-11-22 15:20:29,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:20:30,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:20:30,804 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_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/sv-benchmarks/c/xcsp/Haystacks-18.c[147234,147247] [2021-11-22 15:20:30,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:20:30,852 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:20:31,194 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_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/sv-benchmarks/c/xcsp/Haystacks-18.c[147234,147247] [2021-11-22 15:20:31,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:20:31,255 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:20:31,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31 WrapperNode [2021-11-22 15:20:31,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:20:31,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:20:31,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:20:31,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:20:31,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:31,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:31,984 INFO L137 Inliner]: procedures = 13, calls = 3715, calls flagged for inlining = 3710, calls inlined = 3710, statements flattened = 16145 [2021-11-22 15:20:31,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:20:31,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:20:31,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:20:31,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:20:31,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:31,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:32,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:32,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:32,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:32,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:32,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:32,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:20:32,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:20:32,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:20:32,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:20:32,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (1/1) ... [2021-11-22 15:20:32,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:20:32,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:20:32,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:20:32,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:20:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:20:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:20:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:20:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:20:33,358 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:20:33,360 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:20:41,270 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:20:41,358 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:20:41,359 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:20:41,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:20:41 BoogieIcfgContainer [2021-11-22 15:20:41,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:20:41,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:20:41,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:20:41,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:20:41,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:20:29" (1/3) ... [2021-11-22 15:20:41,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232b4f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:20:41, skipping insertion in model container [2021-11-22 15:20:41,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:20:31" (2/3) ... [2021-11-22 15:20:41,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232b4f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:20:41, skipping insertion in model container [2021-11-22 15:20:41,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:20:41" (3/3) ... [2021-11-22 15:20:41,380 INFO L111 eAbstractionObserver]: Analyzing ICFG Haystacks-18.c [2021-11-22 15:20:41,387 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:20:41,387 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 15:20:41,477 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:20:41,486 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:20:41,486 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 15:20:41,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 7423 states, 7421 states have (on average 1.4997978709068858) internal successors, (11130), 7422 states have internal predecessors, (11130), 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) [2021-11-22 15:20:42,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7420 [2021-11-22 15:20:42,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:42,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:42,432 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:20:42,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:42,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1063416590, now seen corresponding path program 1 times [2021-11-22 15:20:42,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:42,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634678753] [2021-11-22 15:20:42,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:42,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:59,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:59,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:59,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634678753] [2021-11-22 15:20:59,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634678753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:59,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:59,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:20:59,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464891264] [2021-11-22 15:20:59,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:59,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:20:59,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:59,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:20:59,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:20:59,172 INFO L87 Difference]: Start difference. First operand has 7423 states, 7421 states have (on average 1.4997978709068858) internal successors, (11130), 7422 states have internal predecessors, (11130), 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 2 states, 2 states have (on average 3709.5) internal successors, (7419), 2 states have internal predecessors, (7419), 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) [2021-11-22 15:20:59,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:59,502 INFO L93 Difference]: Finished difference Result 14840 states and 22254 transitions. [2021-11-22 15:20:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:20:59,511 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3709.5) internal successors, (7419), 2 states have internal predecessors, (7419), 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 7419 [2021-11-22 15:20:59,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:59,579 INFO L225 Difference]: With dead ends: 14840 [2021-11-22 15:20:59,580 INFO L226 Difference]: Without dead ends: 7420 [2021-11-22 15:20:59,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:20:59,611 INFO L933 BasicCegarLoop]: 7419 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7419 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:59,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7419 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:20:59,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7420 states. [2021-11-22 15:21:00,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7420 to 7420. [2021-11-22 15:21:00,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7420 states, 7419 states have (on average 1.0) internal successors, (7419), 7419 states have internal predecessors, (7419), 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) [2021-11-22 15:21:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7420 states to 7420 states and 7419 transitions. [2021-11-22 15:21:00,521 INFO L78 Accepts]: Start accepts. Automaton has 7420 states and 7419 transitions. Word has length 7419 [2021-11-22 15:21:00,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:21:00,525 INFO L470 AbstractCegarLoop]: Abstraction has 7420 states and 7419 transitions. [2021-11-22 15:21:00,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3709.5) internal successors, (7419), 2 states have internal predecessors, (7419), 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) [2021-11-22 15:21:00,530 INFO L276 IsEmpty]: Start isEmpty. Operand 7420 states and 7419 transitions. [2021-11-22 15:21:01,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7420 [2021-11-22 15:21:01,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:21:01,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:21:01,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:21:01,344 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:21:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:21:01,352 INFO L85 PathProgramCache]: Analyzing trace with hash -170264372, now seen corresponding path program 1 times [2021-11-22 15:21:01,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:21:01,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67537517] [2021-11-22 15:21:01,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:21:01,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:21:02,571 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:21:02,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857955236] [2021-11-22 15:21:02,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:21:02,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:21:02,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:21:02,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:21:02,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ff9e3b5-bfb9-45a1-8e54-7f069ea17759/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process