./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU --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 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:01:00,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:01:00,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:01:00,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:01:00,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:01:00,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:01:00,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:01:00,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:01:00,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:01:00,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:01:00,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:01:00,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:01:00,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:01:00,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:01:00,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:01:00,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:01:00,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:01:00,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:01:00,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:01:00,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:01:00,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:01:00,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:01:00,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:01:00,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:01:00,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:01:00,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:01:00,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:01:00,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:01:00,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:01:00,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:01:00,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:01:00,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:01:00,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:01:00,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:01:00,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:01:00,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:01:00,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:01:00,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:01:00,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:01:00,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:01:00,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:01:00,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 23:01:00,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:01:00,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:01:00,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:01:00,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:01:00,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:01:00,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:01:00,630 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:01:00,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:01:00,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:01:00,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:01:00,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:01:00,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:01:00,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:01:00,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:01:00,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:01:00,633 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:01:00,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:01:00,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:01:00,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:01:00,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:01:00,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:01:00,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:01:00,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:01:00,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:01:00,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:01:00,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:01:00,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:01:00,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:01:00,637 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:01:00,638 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:01:00,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:01:00,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:01:00,639 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_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a [2021-11-02 23:01:00,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:01:00,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:01:00,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:01:00,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:01:00,925 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:01:00,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2021-11-02 23:01:01,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/data/034e53c71/cd00ac77c5cc44c781bb992c147cf00f/FLAGeab56cb5e [2021-11-02 23:01:01,661 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:01:01,662 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2021-11-02 23:01:01,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/data/034e53c71/cd00ac77c5cc44c781bb992c147cf00f/FLAGeab56cb5e [2021-11-02 23:01:01,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/data/034e53c71/cd00ac77c5cc44c781bb992c147cf00f [2021-11-02 23:01:01,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:01:01,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:01:01,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:01:01,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:01:01,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:01:01,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:01:01" (1/1) ... [2021-11-02 23:01:01,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d3dc54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:01, skipping insertion in model container [2021-11-02 23:01:01,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:01:01" (1/1) ... [2021-11-02 23:01:01,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:01:01,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:01:02,487 WARN L228 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_3570f002-66f2-4e30-93ea-6dc753a12e54/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i[33021,33034] [2021-11-02 23:01:02,700 WARN L228 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_3570f002-66f2-4e30-93ea-6dc753a12e54/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i[45234,45247] [2021-11-02 23:01:02,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:01:02,731 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:01:02,784 WARN L228 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_3570f002-66f2-4e30-93ea-6dc753a12e54/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i[33021,33034] [2021-11-02 23:01:02,885 WARN L228 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_3570f002-66f2-4e30-93ea-6dc753a12e54/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i[45234,45247] [2021-11-02 23:01:02,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:01:02,948 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:01:02,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02 WrapperNode [2021-11-02 23:01:02,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:01:02,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:01:02,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:01:02,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:01:02,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:02,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:03,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:01:03,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:01:03,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:01:03,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:01:03,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:03,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:03,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:03,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:03,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:03,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:03,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:03,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:01:03,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:01:03,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:01:03,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:01:03,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (1/1) ... [2021-11-02 23:01:03,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:01:03,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:03,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:01:03,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:01:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:01:03,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:01:03,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:01:03,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:01:03,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:01:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-02 23:01:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:01:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:01:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:01:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:01:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:01:05,182 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:01:05,182 INFO L299 CfgBuilder]: Removed 136 assume(true) statements. [2021-11-02 23:01:05,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:01:05 BoogieIcfgContainer [2021-11-02 23:01:05,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:01:05,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:01:05,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:01:05,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:01:05,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:01:01" (1/3) ... [2021-11-02 23:01:05,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40834834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:01:05, skipping insertion in model container [2021-11-02 23:01:05,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:02" (2/3) ... [2021-11-02 23:01:05,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40834834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:01:05, skipping insertion in model container [2021-11-02 23:01:05,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:01:05" (3/3) ... [2021-11-02 23:01:05,196 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-1.i [2021-11-02 23:01:05,203 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:01:05,203 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-02 23:01:05,277 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:01:05,286 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 23:01:05,286 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-02 23:01:05,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 270 states have (on average 1.7925925925925925) internal successors, (484), 301 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:05,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-02 23:01:05,341 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:05,343 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:05,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-02 23:01:05,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:05,350 INFO L85 PathProgramCache]: Analyzing trace with hash -109840528, now seen corresponding path program 1 times [2021-11-02 23:01:05,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:05,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613220698] [2021-11-02 23:01:05,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:05,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:05,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:05,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613220698] [2021-11-02 23:01:05,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613220698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:05,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:05,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:01:05,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589419726] [2021-11-02 23:01:05,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 23:01:05,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:05,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:01:05,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:01:05,587 INFO L87 Difference]: Start difference. First operand has 302 states, 270 states have (on average 1.7925925925925925) internal successors, (484), 301 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:05,664 INFO L93 Difference]: Finished difference Result 602 states and 966 transitions. [2021-11-02 23:01:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:01:05,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-02 23:01:05,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:05,694 INFO L225 Difference]: With dead ends: 602 [2021-11-02 23:01:05,694 INFO L226 Difference]: Without dead ends: 298 [2021-11-02 23:01:05,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:01:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-11-02 23:01:05,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-11-02 23:01:05,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 267 states have (on average 1.4344569288389513) internal successors, (383), 297 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:05,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 383 transitions. [2021-11-02 23:01:05,788 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 383 transitions. Word has length 9 [2021-11-02 23:01:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:05,789 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 383 transitions. [2021-11-02 23:01:05,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:05,789 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 383 transitions. [2021-11-02 23:01:05,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-02 23:01:05,796 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:05,797 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:05,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:01:05,797 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-02 23:01:05,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:05,801 INFO L85 PathProgramCache]: Analyzing trace with hash 518597571, now seen corresponding path program 1 times [2021-11-02 23:01:05,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:05,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405501274] [2021-11-02 23:01:05,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:05,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:05,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:05,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:05,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405501274] [2021-11-02 23:01:05,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405501274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:05,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:05,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:01:05,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419706628] [2021-11-02 23:01:05,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:01:05,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:05,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:01:05,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:01:05,956 INFO L87 Difference]: Start difference. First operand 298 states and 383 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:06,409 INFO L93 Difference]: Finished difference Result 619 states and 798 transitions. [2021-11-02 23:01:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:01:06,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-02 23:01:06,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:06,413 INFO L225 Difference]: With dead ends: 619 [2021-11-02 23:01:06,413 INFO L226 Difference]: Without dead ends: 474 [2021-11-02 23:01:06,415 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:01:06,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-11-02 23:01:06,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 300. [2021-11-02 23:01:06,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 269 states have (on average 1.4312267657992566) internal successors, (385), 299 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 385 transitions. [2021-11-02 23:01:06,430 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 385 transitions. Word has length 44 [2021-11-02 23:01:06,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:06,431 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 385 transitions. [2021-11-02 23:01:06,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:06,432 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 385 transitions. [2021-11-02 23:01:06,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-02 23:01:06,434 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:06,434 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:06,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:01:06,435 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-02 23:01:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:06,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1543983351, now seen corresponding path program 1 times [2021-11-02 23:01:06,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:06,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113794389] [2021-11-02 23:01:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:06,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:06,486 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:01:06,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1029217699] [2021-11-02 23:01:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:06,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:06,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:06,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:06,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 23:01:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:06,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 23:01:06,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:06,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:06,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113794389] [2021-11-02 23:01:06,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:01:06,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029217699] [2021-11-02 23:01:06,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029217699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:06,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:06,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:01:06,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669768137] [2021-11-02 23:01:06,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:01:06,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:06,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:01:06,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:01:06,922 INFO L87 Difference]: Start difference. First operand 300 states and 385 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:07,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:07,024 INFO L93 Difference]: Finished difference Result 617 states and 797 transitions. [2021-11-02 23:01:07,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:01:07,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-02 23:01:07,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:07,027 INFO L225 Difference]: With dead ends: 617 [2021-11-02 23:01:07,028 INFO L226 Difference]: Without dead ends: 321 [2021-11-02 23:01:07,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:01:07,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-02 23:01:07,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 320. [2021-11-02 23:01:07,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 289 states have (on average 1.4013840830449826) internal successors, (405), 319 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:07,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 405 transitions. [2021-11-02 23:01:07,039 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 405 transitions. Word has length 57 [2021-11-02 23:01:07,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:07,039 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 405 transitions. [2021-11-02 23:01:07,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:07,040 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 405 transitions. [2021-11-02 23:01:07,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-02 23:01:07,042 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:07,043 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:07,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:07,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:07,260 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-02 23:01:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1379176647, now seen corresponding path program 1 times [2021-11-02 23:01:07,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:07,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556093426] [2021-11-02 23:01:07,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:07,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:07,289 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:01:07,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520138539] [2021-11-02 23:01:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:07,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:07,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:07,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:07,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 23:01:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:07,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 23:01:07,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:07,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:07,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556093426] [2021-11-02 23:01:07,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:01:07,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520138539] [2021-11-02 23:01:07,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520138539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:07,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:07,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:01:07,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287024022] [2021-11-02 23:01:07,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:01:07,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:07,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:01:07,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:01:07,686 INFO L87 Difference]: Start difference. First operand 320 states and 405 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:07,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:07,799 INFO L93 Difference]: Finished difference Result 628 states and 798 transitions. [2021-11-02 23:01:07,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:01:07,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-02 23:01:07,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:07,802 INFO L225 Difference]: With dead ends: 628 [2021-11-02 23:01:07,802 INFO L226 Difference]: Without dead ends: 312 [2021-11-02 23:01:07,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:01:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-11-02 23:01:07,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 306. [2021-11-02 23:01:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 275 states have (on average 1.3963636363636365) internal successors, (384), 305 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:07,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 384 transitions. [2021-11-02 23:01:07,813 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 384 transitions. Word has length 57 [2021-11-02 23:01:07,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:07,813 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 384 transitions. [2021-11-02 23:01:07,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:07,813 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 384 transitions. [2021-11-02 23:01:07,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-02 23:01:07,819 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:07,819 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:07,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:08,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:08,043 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-02 23:01:08,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:08,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1996694677, now seen corresponding path program 1 times [2021-11-02 23:01:08,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:08,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093164478] [2021-11-02 23:01:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:08,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:08,059 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:01:08,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268305959] [2021-11-02 23:01:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:08,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:08,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:08,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:08,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 23:01:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:08,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-02 23:01:08,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:08,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:08,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:08,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093164478] [2021-11-02 23:01:08,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:01:08,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268305959] [2021-11-02 23:01:08,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268305959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:08,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:08,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:01:08,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000309150] [2021-11-02 23:01:08,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:01:08,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:08,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:01:08,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:01:08,626 INFO L87 Difference]: Start difference. First operand 306 states and 384 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:08,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:08,731 INFO L93 Difference]: Finished difference Result 779 states and 977 transitions. [2021-11-02 23:01:08,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:01:08,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-02 23:01:08,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:08,736 INFO L225 Difference]: With dead ends: 779 [2021-11-02 23:01:08,737 INFO L226 Difference]: Without dead ends: 477 [2021-11-02 23:01:08,738 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:01:08,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-11-02 23:01:08,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 444. [2021-11-02 23:01:08,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 413 states have (on average 1.3995157384987893) internal successors, (578), 443 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:08,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 578 transitions. [2021-11-02 23:01:08,759 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 578 transitions. Word has length 57 [2021-11-02 23:01:08,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:08,761 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 578 transitions. [2021-11-02 23:01:08,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:08,762 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 578 transitions. [2021-11-02 23:01:08,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-02 23:01:08,764 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:08,765 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:08,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:08,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:08,979 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-02 23:01:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1378561412, now seen corresponding path program 1 times [2021-11-02 23:01:08,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:08,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814871924] [2021-11-02 23:01:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:08,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:08,998 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:01:08,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890247788] [2021-11-02 23:01:08,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:08,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:08,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:09,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:09,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 23:01:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:09,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 23:01:09,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:09,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:09,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:09,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814871924] [2021-11-02 23:01:09,408 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:01:09,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890247788] [2021-11-02 23:01:09,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890247788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:09,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:09,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:01:09,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103148007] [2021-11-02 23:01:09,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:01:09,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:09,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:01:09,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:01:09,411 INFO L87 Difference]: Start difference. First operand 444 states and 578 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:09,440 INFO L93 Difference]: Finished difference Result 842 states and 1107 transitions. [2021-11-02 23:01:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:01:09,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-02 23:01:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:09,444 INFO L225 Difference]: With dead ends: 842 [2021-11-02 23:01:09,445 INFO L226 Difference]: Without dead ends: 446 [2021-11-02 23:01:09,445 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:01:09,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-11-02 23:01:09,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2021-11-02 23:01:09,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 415 states have (on average 1.3975903614457832) internal successors, (580), 445 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:09,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 580 transitions. [2021-11-02 23:01:09,461 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 580 transitions. Word has length 64 [2021-11-02 23:01:09,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:09,462 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 580 transitions. [2021-11-02 23:01:09,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:09,462 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 580 transitions. [2021-11-02 23:01:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-02 23:01:09,463 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:09,463 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:09,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:09,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:09,679 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-02 23:01:09,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:09,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1147149435, now seen corresponding path program 1 times [2021-11-02 23:01:09,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:09,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339352671] [2021-11-02 23:01:09,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:09,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:09,696 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:01:09,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175030922] [2021-11-02 23:01:09,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:09,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:09,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:09,698 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:09,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-02 23:01:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:09,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:01:09,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 23:01:10,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:10,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339352671] [2021-11-02 23:01:10,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:01:10,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175030922] [2021-11-02 23:01:10,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175030922] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:10,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:01:10,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-11-02 23:01:10,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409746877] [2021-11-02 23:01:10,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:01:10,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:10,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:01:10,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:01:10,152 INFO L87 Difference]: Start difference. First operand 446 states and 580 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:10,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:10,195 INFO L93 Difference]: Finished difference Result 846 states and 1111 transitions. [2021-11-02 23:01:10,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:01:10,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-02 23:01:10,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:10,199 INFO L225 Difference]: With dead ends: 846 [2021-11-02 23:01:10,199 INFO L226 Difference]: Without dead ends: 448 [2021-11-02 23:01:10,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:01:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-11-02 23:01:10,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2021-11-02 23:01:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 417 states have (on average 1.39568345323741) internal successors, (582), 447 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 582 transitions. [2021-11-02 23:01:10,215 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 582 transitions. Word has length 66 [2021-11-02 23:01:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:10,215 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 582 transitions. [2021-11-02 23:01:10,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 582 transitions. [2021-11-02 23:01:10,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-02 23:01:10,217 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:10,217 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:10,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:10,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:10,440 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-02 23:01:10,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash -774761572, now seen corresponding path program 2 times [2021-11-02 23:01:10,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:10,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656655609] [2021-11-02 23:01:10,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:10,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:10,458 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:01:10,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373077784] [2021-11-02 23:01:10,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:01:10,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:10,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:10,460 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:10,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-02 23:04:48,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:04:48,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:04:48,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-02 23:04:48,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:04:48,371 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 23:04:48,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:48,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656655609] [2021-11-02 23:04:48,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:04:48,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373077784] [2021-11-02 23:04:48,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373077784] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:48,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:04:48,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-11-02 23:04:48,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60979137] [2021-11-02 23:04:48,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:04:48,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:48,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:04:48,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:04:48,374 INFO L87 Difference]: Start difference. First operand 448 states and 582 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:48,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:48,416 INFO L93 Difference]: Finished difference Result 850 states and 1115 transitions. [2021-11-02 23:04:48,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:04:48,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-02 23:04:48,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:48,420 INFO L225 Difference]: With dead ends: 850 [2021-11-02 23:04:48,420 INFO L226 Difference]: Without dead ends: 450 [2021-11-02 23:04:48,421 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:04:48,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-11-02 23:04:48,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2021-11-02 23:04:48,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 419 states have (on average 1.3937947494033414) internal successors, (584), 449 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:48,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 584 transitions. [2021-11-02 23:04:48,453 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 584 transitions. Word has length 68 [2021-11-02 23:04:48,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:48,453 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 584 transitions. [2021-11-02 23:04:48,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:48,453 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 584 transitions. [2021-11-02 23:04:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-02 23:04:48,454 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:48,454 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:48,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:04:48,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:48,669 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-02 23:04:48,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:48,669 INFO L85 PathProgramCache]: Analyzing trace with hash -264785445, now seen corresponding path program 3 times [2021-11-02 23:04:48,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:48,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326178687] [2021-11-02 23:04:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:48,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:48,688 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:04:48,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724169180] [2021-11-02 23:04:48,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:04:48,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:48,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:04:48,689 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:04:48,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3570f002-66f2-4e30-93ea-6dc753a12e54/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process