./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Haystacks-07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Haystacks-07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R --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 37cca93bb7dc8cf168b28f2ca23bfa0068547531ceecfc239eae366d82d628a0 --- 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-38b53e6 [2022-11-25 18:33:36,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:33:36,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:33:36,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:33:36,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:33:36,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:33:36,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:33:36,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:33:36,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:33:36,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:33:36,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:33:36,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:33:36,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:33:36,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:33:36,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:33:36,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:33:36,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:33:36,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:33:36,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:33:36,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:33:36,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:33:36,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:33:36,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:33:36,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:33:36,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:33:36,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:33:36,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:33:36,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:33:36,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:33:36,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:33:36,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:33:36,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:33:36,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:33:36,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:33:36,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:33:36,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:33:36,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:33:36,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:33:36,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:33:36,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:33:36,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:33:36,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:33:36,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:33:36,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:33:36,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:33:36,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:33:36,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:33:36,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:33:36,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:33:36,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:33:36,459 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:33:36,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:33:36,460 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:33:36,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:33:36,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:33:36,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:33:36,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:33:36,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:33:36,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:33:36,461 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:33:36,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:33:36,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:33:36,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:33:36,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:33:36,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:33:36,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:33:36,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:33:36,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:33:36,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:33:36,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:33:36,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:33:36,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:33:36,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:33:36,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:33:36,464 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:33:36,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:33:36,465 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_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37cca93bb7dc8cf168b28f2ca23bfa0068547531ceecfc239eae366d82d628a0 [2022-11-25 18:33:36,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:33:36,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:33:36,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:33:36,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:33:36,732 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:33:36,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/xcsp/Haystacks-07.c [2022-11-25 18:33:39,817 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:33:40,047 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:33:40,048 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/sv-benchmarks/c/xcsp/Haystacks-07.c [2022-11-25 18:33:40,066 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/data/8700599a9/fecece01bcfb4f4a9d5e7c0327cb6287/FLAG6847dcbdd [2022-11-25 18:33:40,085 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/data/8700599a9/fecece01bcfb4f4a9d5e7c0327cb6287 [2022-11-25 18:33:40,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:33:40,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:33:40,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:40,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:33:40,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:33:40,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302cb104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40, skipping insertion in model container [2022-11-25 18:33:40,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:33:40,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:33:40,387 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_697b62e6-095e-42d3-8840-d6956ed08b68/sv-benchmarks/c/xcsp/Haystacks-07.c[11507,11520] [2022-11-25 18:33:40,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:40,416 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:33:40,500 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_697b62e6-095e-42d3-8840-d6956ed08b68/sv-benchmarks/c/xcsp/Haystacks-07.c[11507,11520] [2022-11-25 18:33:40,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:40,516 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:33:40,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40 WrapperNode [2022-11-25 18:33:40,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:40,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:40,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:33:40,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:33:40,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,610 INFO L138 Inliner]: procedures = 13, calls = 294, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 500 [2022-11-25 18:33:40,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:40,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:33:40,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:33:40,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:33:40,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,644 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:33:40,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:33:40,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:33:40,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:33:40,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (1/1) ... [2022-11-25 18:33:40,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:33:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:40,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:33:40,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:33:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:33:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:33:40,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:33:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:33:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-25 18:33:40,764 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-25 18:33:40,888 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:33:40,890 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:33:41,661 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:33:41,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:33:41,683 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:33:41,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:41 BoogieIcfgContainer [2022-11-25 18:33:41,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:33:41,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:33:41,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:33:41,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:33:41,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:33:40" (1/3) ... [2022-11-25 18:33:41,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132619e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:41, skipping insertion in model container [2022-11-25 18:33:41,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:40" (2/3) ... [2022-11-25 18:33:41,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132619e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:41, skipping insertion in model container [2022-11-25 18:33:41,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:41" (3/3) ... [2022-11-25 18:33:41,699 INFO L112 eAbstractionObserver]: Analyzing ICFG Haystacks-07.c [2022-11-25 18:33:41,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:33:41,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:33:41,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:33:41,804 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;@6bec49f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:33:41,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:33:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 58 states have internal predecessors, (59), 287 states have call successors, (287), 1 states have call predecessors, (287), 1 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) [2022-11-25 18:33:41,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1488 [2022-11-25 18:33:41,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:41,961 INFO L195 NwaCegarLoop]: trace histogram [287, 287, 287, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:41,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:33:41,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:41,969 INFO L85 PathProgramCache]: Analyzing trace with hash 726037940, now seen corresponding path program 1 times [2022-11-25 18:33:41,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:41,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823608860] [2022-11-25 18:33:41,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:41,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:42,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:42,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823608860] [2022-11-25 18:33:42,628 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 18:33:42,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340851723] [2022-11-25 18:33:42,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:42,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:42,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:42,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:33:42,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:33:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:43,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 2807 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:33:43,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:33:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 164164 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 163592 trivial. 0 not checked. [2022-11-25 18:33:43,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:33:43,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340851723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:43,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:43,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:33:43,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629109807] [2022-11-25 18:33:43,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:43,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:33:43,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:43,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:33:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:33:43,803 INFO L87 Difference]: Start difference. First operand has 347 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 58 states have internal predecessors, (59), 287 states have call successors, (287), 1 states have call predecessors, (287), 1 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (287), 2 states have call predecessors, (287), 1 states have return successors, (287), 1 states have call predecessors, (287), 2 states have call successors, (287) [2022-11-25 18:33:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:43,923 INFO L93 Difference]: Finished difference Result 688 states and 1547 transitions. [2022-11-25 18:33:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:33:43,927 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (287), 2 states have call predecessors, (287), 1 states have return successors, (287), 1 states have call predecessors, (287), 2 states have call successors, (287) Word has length 1487 [2022-11-25 18:33:43,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:43,951 INFO L225 Difference]: With dead ends: 688 [2022-11-25 18:33:43,952 INFO L226 Difference]: Without dead ends: 344 [2022-11-25 18:33:43,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1486 GetRequests, 1486 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:33:43,964 INFO L413 NwaCegarLoop]: 629 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, 629 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 [2022-11-25 18:33:43,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:33:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-11-25 18:33:44,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2022-11-25 18:33:44,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 55 states have (on average 1.0) internal successors, (55), 55 states have internal predecessors, (55), 287 states have call successors, (287), 1 states have call predecessors, (287), 1 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) [2022-11-25 18:33:44,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 629 transitions. [2022-11-25 18:33:44,207 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 629 transitions. Word has length 1487 [2022-11-25 18:33:44,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:44,210 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 629 transitions. [2022-11-25 18:33:44,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (287), 2 states have call predecessors, (287), 1 states have return successors, (287), 1 states have call predecessors, (287), 2 states have call successors, (287) [2022-11-25 18:33:44,211 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 629 transitions. [2022-11-25 18:33:44,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1488 [2022-11-25 18:33:44,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:44,344 INFO L195 NwaCegarLoop]: trace histogram [287, 287, 287, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:44,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 18:33:44,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 18:33:44,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:33:44,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:44,561 INFO L85 PathProgramCache]: Analyzing trace with hash -109962574, now seen corresponding path program 1 times [2022-11-25 18:33:44,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:44,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764525825] [2022-11-25 18:33:44,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:44,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:44,870 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 18:33:44,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020346527] [2022-11-25 18:33:44,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:44,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:33:44,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:44,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:33:44,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697b62e6-095e-42d3-8840-d6956ed08b68/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:47:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:25,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 2807 conjuncts, 1322 conjunts are in the unsatisfiable core [2022-11-25 18:47:25,285 INFO L286 TraceCheckSpWp]: Computing forward predicates...