./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Haystacks-13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Haystacks-13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 723a0d61b7822a39b4ed348e660569e97a5ec142d751530662490cf84604d065 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:56:48,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:56:48,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:56:48,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:56:48,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:56:48,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:56:48,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:56:48,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:56:48,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:56:48,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:56:48,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:56:48,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:56:48,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:56:48,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:56:48,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:56:48,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:56:48,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:56:48,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:56:48,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:56:48,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:56:48,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:56:48,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:56:48,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:56:48,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:56:48,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:56:48,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:56:48,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:56:48,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:56:48,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:56:48,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:56:48,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:56:48,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:56:48,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:56:48,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:56:48,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:56:48,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:56:48,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:56:48,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:56:48,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:56:48,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:56:48,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:56:48,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:56:48,868 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:56:48,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:56:48,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:56:48,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:56:48,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:56:48,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:56:48,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:56:48,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:56:48,871 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:56:48,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:56:48,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:56:48,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:56:48,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:56:48,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:56:48,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:56:48,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:56:48,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:56:48,873 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:56:48,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:56:48,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:56:48,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:56:48,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:56:48,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:56:48,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:56:48,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:56:48,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:56:48,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:56:48,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:56:48,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:56:48,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:56:48,876 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:56:48,877 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:56:48,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:56:48,877 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_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723a0d61b7822a39b4ed348e660569e97a5ec142d751530662490cf84604d065 [2022-11-16 11:56:49,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:56:49,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:56:49,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:56:49,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:56:49,147 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:56:49,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/xcsp/Haystacks-13.c [2022-11-16 11:56:49,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/data/b1ce45ae8/e890dadf4c314a20b53fddc54e63d587/FLAGe7b8c63e2 [2022-11-16 11:56:49,780 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:56:49,780 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/sv-benchmarks/c/xcsp/Haystacks-13.c [2022-11-16 11:56:49,799 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/data/b1ce45ae8/e890dadf4c314a20b53fddc54e63d587/FLAGe7b8c63e2 [2022-11-16 11:56:50,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/data/b1ce45ae8/e890dadf4c314a20b53fddc54e63d587 [2022-11-16 11:56:50,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:56:50,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:56:50,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:56:50,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:56:50,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:56:50,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:50" (1/1) ... [2022-11-16 11:56:50,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412f5f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:50, skipping insertion in model container [2022-11-16 11:56:50,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:50" (1/1) ... [2022-11-16 11:56:50,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:56:50,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:56:50,866 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/sv-benchmarks/c/xcsp/Haystacks-13.c[59103,59116] [2022-11-16 11:56:50,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:56:50,918 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:56:51,100 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/sv-benchmarks/c/xcsp/Haystacks-13.c[59103,59116] [2022-11-16 11:56:51,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:56:51,125 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:56:51,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51 WrapperNode [2022-11-16 11:56:51,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:56:51,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:56:51,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:56:51,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:56:51,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,273 INFO L138 Inliner]: procedures = 13, calls = 1515, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2201 [2022-11-16 11:56:51,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:56:51,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:56:51,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:56:51,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:56:51,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,363 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:56:51,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:56:51,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:56:51,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:56:51,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (1/1) ... [2022-11-16 11:56:51,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:56:51,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:56:51,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:56:51,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:56:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:56:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:56:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:56:51,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:56:51,512 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-16 11:56:51,512 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-16 11:56:51,722 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:56:51,724 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:56:53,520 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:56:53,549 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:56:53,551 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:56:53,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:56:53 BoogieIcfgContainer [2022-11-16 11:56:53,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:56:53,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:56:53,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:56:53,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:56:53,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:56:50" (1/3) ... [2022-11-16 11:56:53,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e3648c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:53, skipping insertion in model container [2022-11-16 11:56:53,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:51" (2/3) ... [2022-11-16 11:56:53,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e3648c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:53, skipping insertion in model container [2022-11-16 11:56:53,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:56:53" (3/3) ... [2022-11-16 11:56:53,566 INFO L112 eAbstractionObserver]: Analyzing ICFG Haystacks-13.c [2022-11-16 11:56:53,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:56:53,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:56:53,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:56:53,743 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;@2926a2aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:56:53,744 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:56:53,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 1688 states, 177 states have (on average 1.0112994350282485) internal successors, (179), 178 states have internal predecessors, (179), 1508 states have call successors, (1508), 1 states have call predecessors, (1508), 1 states have return successors, (1508), 1508 states have call predecessors, (1508), 1508 states have call successors, (1508) [2022-11-16 11:56:54,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7713 [2022-11-16 11:56:54,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:54,445 INFO L195 NwaCegarLoop]: trace histogram [1508, 1508, 1508, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:54,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:54,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:54,454 INFO L85 PathProgramCache]: Analyzing trace with hash -689789742, now seen corresponding path program 1 times [2022-11-16 11:56:54,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:54,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139556496] [2022-11-16 11:56:54,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:54,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:55,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:55,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139556496] [2022-11-16 11:56:55,861 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 11:56:55,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646164988] [2022-11-16 11:56:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:55,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:56:55,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:56:55,866 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:56:55,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:56:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:58,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 14276 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 11:56:58,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:56:59,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4545112 backedges. 3014 proven. 0 refuted. 0 times theorem prover too weak. 4542098 trivial. 0 not checked. [2022-11-16 11:56:59,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:56:59,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646164988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:59,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:59,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:56:59,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501842933] [2022-11-16 11:56:59,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:59,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:56:59,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:59,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:56:59,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:56:59,685 INFO L87 Difference]: Start difference. First operand has 1688 states, 177 states have (on average 1.0112994350282485) internal successors, (179), 178 states have internal predecessors, (179), 1508 states have call successors, (1508), 1 states have call predecessors, (1508), 1 states have return successors, (1508), 1508 states have call predecessors, (1508), 1508 states have call successors, (1508) Second operand has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 2 states have call successors, (1508), 2 states have call predecessors, (1508), 1 states have return successors, (1508), 1 states have call predecessors, (1508), 2 states have call successors, (1508) [2022-11-16 11:56:59,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:59,953 INFO L93 Difference]: Finished difference Result 3370 states and 7892 transitions. [2022-11-16 11:56:59,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:56:59,960 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 2 states have call successors, (1508), 2 states have call predecessors, (1508), 1 states have return successors, (1508), 1 states have call predecessors, (1508), 2 states have call successors, (1508) Word has length 7712 [2022-11-16 11:56:59,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:59,998 INFO L225 Difference]: With dead ends: 3370 [2022-11-16 11:56:59,998 INFO L226 Difference]: Without dead ends: 1685 [2022-11-16 11:57:00,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7711 GetRequests, 7711 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:57:00,029 INFO L413 NwaCegarLoop]: 3191 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, 3191 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 [2022-11-16 11:57:00,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3191 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:57:00,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2022-11-16 11:57:01,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2022-11-16 11:57:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 175 states have (on average 1.0) internal successors, (175), 175 states have internal predecessors, (175), 1508 states have call successors, (1508), 1 states have call predecessors, (1508), 1 states have return successors, (1508), 1508 states have call predecessors, (1508), 1508 states have call successors, (1508) [2022-11-16 11:57:01,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 3191 transitions. [2022-11-16 11:57:01,506 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 3191 transitions. Word has length 7712 [2022-11-16 11:57:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:57:01,509 INFO L495 AbstractCegarLoop]: Abstraction has 1685 states and 3191 transitions. [2022-11-16 11:57:01,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 2 states have call successors, (1508), 2 states have call predecessors, (1508), 1 states have return successors, (1508), 1 states have call predecessors, (1508), 2 states have call successors, (1508) [2022-11-16 11:57:01,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 3191 transitions. [2022-11-16 11:57:02,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7713 [2022-11-16 11:57:02,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:57:02,172 INFO L195 NwaCegarLoop]: trace histogram [1508, 1508, 1508, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:57:02,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 11:57:02,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 11:57:02,381 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:57:02,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:02,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1766477102, now seen corresponding path program 1 times [2022-11-16 11:57:02,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:02,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434400703] [2022-11-16 11:57:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:02,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:02,877 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:57:02,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700075350] [2022-11-16 11:57:02,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:02,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:57:02,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:57:02,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:57:02,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917257b1-818e-4e3d-9ce5-2afc33fcc811/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process