./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Haystacks-08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Haystacks-08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 011059f292c40d2fbcd17f8972992ba27e82eff797e3cbf3b3efd2a0f1ed8c70 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:05:20,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:05:20,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:05:20,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:05:20,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:05:20,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:05:20,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:05:20,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:05:20,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:05:20,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:05:20,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:05:20,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:05:20,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:05:20,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:05:20,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:05:20,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:05:20,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:05:20,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:05:20,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:05:20,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:05:20,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:05:20,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:05:20,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:05:20,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:05:20,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:05:20,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:05:20,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:05:20,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:05:20,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:05:20,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:05:20,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:05:20,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:05:20,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:05:20,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:05:20,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:05:20,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:05:20,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:05:20,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:05:20,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:05:20,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:05:20,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:05:20,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:05:20,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:05:20,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:05:20,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:05:20,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:05:20,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:05:20,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:05:20,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:05:20,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:05:20,769 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:05:20,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:05:20,769 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:05:20,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:05:20,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:05:20,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:05:20,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:05:20,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:05:20,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:05:20,770 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:05:20,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:05:20,770 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:05:20,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:05:20,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:05:20,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:05:20,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:05:20,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:05:20,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:05:20,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:05:20,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:05:20,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:05:20,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:05:20,772 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:05:20,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:05:20,773 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:05:20,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:05:20,773 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:05:20,773 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 011059f292c40d2fbcd17f8972992ba27e82eff797e3cbf3b3efd2a0f1ed8c70 [2022-12-13 21:05:20,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:05:20,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:05:20,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:05:20,964 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:05:20,965 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:05:20,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/xcsp/Haystacks-08.c [2022-12-13 21:05:23,654 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:05:23,829 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:05:23,829 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/sv-benchmarks/c/xcsp/Haystacks-08.c [2022-12-13 21:05:23,835 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/data/5f7c652ea/a071eb2f731d4f1e8b892c1d3815ee72/FLAG7e4351caa [2022-12-13 21:05:24,206 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/data/5f7c652ea/a071eb2f731d4f1e8b892c1d3815ee72 [2022-12-13 21:05:24,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:05:24,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:05:24,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:05:24,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:05:24,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:05:24,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e59ef7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24, skipping insertion in model container [2022-12-13 21:05:24,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:05:24,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:05:24,399 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/sv-benchmarks/c/xcsp/Haystacks-08.c[16029,16042] [2022-12-13 21:05:24,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:05:24,413 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:05:24,461 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/sv-benchmarks/c/xcsp/Haystacks-08.c[16029,16042] [2022-12-13 21:05:24,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:05:24,472 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:05:24,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24 WrapperNode [2022-12-13 21:05:24,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:05:24,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:05:24,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:05:24,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:05:24,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,515 INFO L138 Inliner]: procedures = 13, calls = 415, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 681 [2022-12-13 21:05:24,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:05:24,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:05:24,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:05:24,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:05:24,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:05:24,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:05:24,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:05:24,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:05:24,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (1/1) ... [2022-12-13 21:05:24,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:05:24,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:05:24,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:05:24,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:05:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:05:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:05:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:05:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:05:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-12-13 21:05:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-12-13 21:05:24,673 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:05:24,675 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:05:25,209 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:05:25,222 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:05:25,222 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:05:25,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:05:25 BoogieIcfgContainer [2022-12-13 21:05:25,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:05:25,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:05:25,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:05:25,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:05:25,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:05:24" (1/3) ... [2022-12-13 21:05:25,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad266a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:05:25, skipping insertion in model container [2022-12-13 21:05:25,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:05:24" (2/3) ... [2022-12-13 21:05:25,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad266a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:05:25, skipping insertion in model container [2022-12-13 21:05:25,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:05:25" (3/3) ... [2022-12-13 21:05:25,232 INFO L112 eAbstractionObserver]: Analyzing ICFG Haystacks-08.c [2022-12-13 21:05:25,246 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:05:25,247 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:05:25,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:05:25,297 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;@4246547b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:05:25,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:05:25,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 483 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 73 states have internal predecessors, (74), 408 states have call successors, (408), 1 states have call predecessors, (408), 1 states have return successors, (408), 408 states have call predecessors, (408), 408 states have call successors, (408) [2022-12-13 21:05:25,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2108 [2022-12-13 21:05:25,399 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:05:25,400 INFO L195 NwaCegarLoop]: trace histogram [408, 408, 408, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:05:25,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:05:25,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:05:25,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1720662376, now seen corresponding path program 1 times [2022-12-13 21:05:25,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:05:25,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183601187] [2022-12-13 21:05:25,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:05:25,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:05:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:05:25,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:05:25,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183601187] [2022-12-13 21:05:25,838 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-13 21:05:25,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914297110] [2022-12-13 21:05:25,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:05:25,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:05:25,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:05:25,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:05:25,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 21:05:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:05:26,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 3956 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 21:05:26,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:05:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 332112 backedges. 814 proven. 0 refuted. 0 times theorem prover too weak. 331298 trivial. 0 not checked. [2022-12-13 21:05:26,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:05:26,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914297110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:05:26,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:05:26,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:05:26,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324266334] [2022-12-13 21:05:26,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:05:26,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:05:26,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:05:26,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:05:26,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:05:26,630 INFO L87 Difference]: Start difference. First operand has 483 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 73 states have internal predecessors, (74), 408 states have call successors, (408), 1 states have call predecessors, (408), 1 states have return successors, (408), 408 states have call predecessors, (408), 408 states have call successors, (408) Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (408), 2 states have call predecessors, (408), 1 states have return successors, (408), 1 states have call predecessors, (408), 2 states have call successors, (408) [2022-12-13 21:05:26,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:05:26,708 INFO L93 Difference]: Finished difference Result 960 states and 2182 transitions. [2022-12-13 21:05:26,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:05:26,710 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (408), 2 states have call predecessors, (408), 1 states have return successors, (408), 1 states have call predecessors, (408), 2 states have call successors, (408) Word has length 2107 [2022-12-13 21:05:26,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:05:26,720 INFO L225 Difference]: With dead ends: 960 [2022-12-13 21:05:26,720 INFO L226 Difference]: Without dead ends: 480 [2022-12-13 21:05:26,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2106 GetRequests, 2106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:05:26,730 INFO L413 NwaCegarLoop]: 886 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, 886 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 [2022-12-13 21:05:26,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:05:26,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-12-13 21:05:26,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2022-12-13 21:05:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 70 states have (on average 1.0) internal successors, (70), 70 states have internal predecessors, (70), 408 states have call successors, (408), 1 states have call predecessors, (408), 1 states have return successors, (408), 408 states have call predecessors, (408), 408 states have call successors, (408) [2022-12-13 21:05:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 886 transitions. [2022-12-13 21:05:26,928 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 886 transitions. Word has length 2107 [2022-12-13 21:05:26,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:05:26,929 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 886 transitions. [2022-12-13 21:05:26,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (408), 2 states have call predecessors, (408), 1 states have return successors, (408), 1 states have call predecessors, (408), 2 states have call successors, (408) [2022-12-13 21:05:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 886 transitions. [2022-12-13 21:05:26,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2108 [2022-12-13 21:05:26,994 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:05:26,995 INFO L195 NwaCegarLoop]: trace histogram [408, 408, 408, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:05:27,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:05:27,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:05:27,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:05:27,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:05:27,201 INFO L85 PathProgramCache]: Analyzing trace with hash 148638312, now seen corresponding path program 1 times [2022-12-13 21:05:27,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:05:27,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395818202] [2022-12-13 21:05:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:05:27,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:05:27,463 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 21:05:27,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455865727] [2022-12-13 21:05:27,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:05:27,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:05:27,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:05:27,465 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:05:27,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ebe15e4-0ab1-4381-8f52-b392ebc01aae/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process