./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt --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 2a301598b894469c390b893ff55a4689df36f250 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:30:52,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:30:52,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:30:52,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:30:52,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:30:52,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:30:52,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:30:52,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:30:52,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:30:52,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:30:52,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:30:52,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:30:52,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:30:52,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:30:52,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:30:52,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:30:52,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:30:52,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:30:52,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:30:52,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:30:52,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:30:52,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:30:52,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:30:52,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:30:52,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:30:52,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:30:52,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:30:52,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:30:52,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:30:52,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:30:52,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:30:52,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:30:52,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:30:52,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:30:52,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:30:52,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:30:52,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:30:52,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:30:52,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:30:52,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:30:52,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:30:52,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:30:52,639 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:30:52,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:30:52,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:30:52,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:30:52,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:30:52,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:30:52,642 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:30:52,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:30:52,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:30:52,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:30:52,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:30:52,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:30:52,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:30:52,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:30:52,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:30:52,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:30:52,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:30:52,644 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:30:52,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:30:52,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:30:52,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:30:52,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:30:52,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:30:52,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:30:52,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:30:52,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:30:52,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:30:52,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:30:52,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:30:52,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:30:52,647 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_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a301598b894469c390b893ff55a4689df36f250 [2021-10-13 00:30:52,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:30:52,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:30:52,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:30:52,942 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:30:52,943 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:30:52,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2021-10-13 00:30:53,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/data/71f24905a/73a1b0b5b9084e63aa6d12078484765e/FLAG63621f70c [2021-10-13 00:30:53,661 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:30:53,662 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2021-10-13 00:30:53,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/data/71f24905a/73a1b0b5b9084e63aa6d12078484765e/FLAG63621f70c [2021-10-13 00:30:53,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/data/71f24905a/73a1b0b5b9084e63aa6d12078484765e [2021-10-13 00:30:53,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:30:53,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:30:53,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:30:53,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:30:53,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:30:53,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:30:53" (1/1) ... [2021-10-13 00:30:53,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf3234b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:53, skipping insertion in model container [2021-10-13 00:30:53,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:30:53" (1/1) ... [2021-10-13 00:30:53,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:30:53,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:30:54,196 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_bc89026c-eb14-4baa-8c96-29afc8f516fa/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2021-10-13 00:30:54,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:30:54,424 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:30:54,470 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_bc89026c-eb14-4baa-8c96-29afc8f516fa/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2021-10-13 00:30:54,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:30:54,630 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:30:54,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54 WrapperNode [2021-10-13 00:30:54,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:30:54,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:30:54,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:30:54,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:30:54,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:30:54,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:30:54,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:30:54,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:30:54,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:30:54,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:30:54,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:30:54,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:30:54,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (1/1) ... [2021-10-13 00:30:54,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:30:54,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:30:54,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:30:54,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:30:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:30:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:30:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:30:54,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:30:56,500 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:30:56,500 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:30:56,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:30:56 BoogieIcfgContainer [2021-10-13 00:30:56,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:30:56,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:30:56,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:30:56,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:30:56,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:30:53" (1/3) ... [2021-10-13 00:30:56,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581dd20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:30:56, skipping insertion in model container [2021-10-13 00:30:56,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:30:54" (2/3) ... [2021-10-13 00:30:56,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581dd20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:30:56, skipping insertion in model container [2021-10-13 00:30:56,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:30:56" (3/3) ... [2021-10-13 00:30:56,516 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label55.c [2021-10-13 00:30:56,524 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:30:56,525 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:30:56,589 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:30:56,599 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:30:56,600 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:30:56,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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) [2021-10-13 00:30:56,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-13 00:30:56,639 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:30:56,639 INFO L512 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] [2021-10-13 00:30:56,640 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:30:56,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:30:56,646 INFO L82 PathProgramCache]: Analyzing trace with hash -66916295, now seen corresponding path program 1 times [2021-10-13 00:30:56,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:30:56,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045041407] [2021-10-13 00:30:56,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:30:56,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:30:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:30:56,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:56,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:30:56,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045041407] [2021-10-13 00:30:56,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045041407] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:30:56,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:30:56,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:30:56,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692593283] [2021-10-13 00:30:56,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:30:56,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:30:57,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:30:57,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:30:57,005 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 3 states, 3 states have (on average 19.0) internal successors, (57), 2 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) [2021-10-13 00:30:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:30:58,012 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2021-10-13 00:30:58,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:30:58,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 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 [2021-10-13 00:30:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:30:58,028 INFO L225 Difference]: With dead ends: 685 [2021-10-13 00:30:58,029 INFO L226 Difference]: Without dead ends: 360 [2021-10-13 00:30:58,033 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:30:58,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-13 00:30:58,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-13 00:30:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 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) [2021-10-13 00:30:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-10-13 00:30:58,110 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 57 [2021-10-13 00:30:58,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:30:58,112 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-10-13 00:30:58,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 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) [2021-10-13 00:30:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-10-13 00:30:58,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-10-13 00:30:58,123 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:30:58,124 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:30:58,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:30:58,124 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:30:58,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:30:58,128 INFO L82 PathProgramCache]: Analyzing trace with hash -2108066841, now seen corresponding path program 1 times [2021-10-13 00:30:58,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:30:58,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488353572] [2021-10-13 00:30:58,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:30:58,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:30:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:30:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:30:58,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:30:58,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488353572] [2021-10-13 00:30:58,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488353572] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:30:58,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:30:58,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:30:58,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634487850] [2021-10-13 00:30:58,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:30:58,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:30:58,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:30:58,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:30:58,382 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-10-13 00:30:59,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:30:59,503 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2021-10-13 00:30:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:30:59,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 136 [2021-10-13 00:30:59,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:30:59,508 INFO L225 Difference]: With dead ends: 1074 [2021-10-13 00:30:59,508 INFO L226 Difference]: Without dead ends: 716 [2021-10-13 00:30:59,510 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:30:59,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-13 00:30:59,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-10-13 00:30:59,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 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) [2021-10-13 00:30:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2021-10-13 00:30:59,543 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 136 [2021-10-13 00:30:59,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:30:59,546 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2021-10-13 00:30:59,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-10-13 00:30:59,546 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2021-10-13 00:30:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-10-13 00:30:59,556 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:30:59,557 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:30:59,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:30:59,558 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:30:59,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:30:59,569 INFO L82 PathProgramCache]: Analyzing trace with hash -525654712, now seen corresponding path program 1 times [2021-10-13 00:30:59,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:30:59,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161741528] [2021-10-13 00:30:59,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:30:59,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:30:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:30:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-13 00:30:59,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:30:59,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161741528] [2021-10-13 00:30:59,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161741528] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:30:59,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517817229] [2021-10-13 00:30:59,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:30:59,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:30:59,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:30:59,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:30:59,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:30:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:30:59,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:30:59,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 00:31:00,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517817229] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:00,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:31:00,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-13 00:31:00,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722803505] [2021-10-13 00:31:00,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:00,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:00,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:00,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:31:00,407 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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) [2021-10-13 00:31:01,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:01,095 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2021-10-13 00:31:01,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:01,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 162 [2021-10-13 00:31:01,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:01,106 INFO L225 Difference]: With dead ends: 1252 [2021-10-13 00:31:01,106 INFO L226 Difference]: Without dead ends: 1250 [2021-10-13 00:31:01,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:31:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-13 00:31:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2021-10-13 00:31:01,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 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) [2021-10-13 00:31:01,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2021-10-13 00:31:01,132 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 162 [2021-10-13 00:31:01,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:01,133 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2021-10-13 00:31:01,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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) [2021-10-13 00:31:01,146 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2021-10-13 00:31:01,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-10-13 00:31:01,150 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:01,150 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:01,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:01,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:01,360 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:01,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:01,361 INFO L82 PathProgramCache]: Analyzing trace with hash 2083123476, now seen corresponding path program 1 times [2021-10-13 00:31:01,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:01,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074326327] [2021-10-13 00:31:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:01,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 00:31:01,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:01,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074326327] [2021-10-13 00:31:01,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074326327] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:01,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:01,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:01,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396666336] [2021-10-13 00:31:01,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:31:01,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:01,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:31:01,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:31:01,533 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-10-13 00:31:02,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:02,338 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2021-10-13 00:31:02,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:31:02,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 216 [2021-10-13 00:31:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:02,345 INFO L225 Difference]: With dead ends: 1993 [2021-10-13 00:31:02,346 INFO L226 Difference]: Without dead ends: 1072 [2021-10-13 00:31:02,347 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:31:02,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-13 00:31:02,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-10-13 00:31:02,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 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) [2021-10-13 00:31:02,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2021-10-13 00:31:02,374 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 216 [2021-10-13 00:31:02,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:02,374 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2021-10-13 00:31:02,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-10-13 00:31:02,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2021-10-13 00:31:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-10-13 00:31:02,378 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:02,379 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:31:02,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:31:02,379 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:02,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:02,380 INFO L82 PathProgramCache]: Analyzing trace with hash -971236136, now seen corresponding path program 1 times [2021-10-13 00:31:02,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:02,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778681017] [2021-10-13 00:31:02,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:02,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:02,521 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:31:02,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:02,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778681017] [2021-10-13 00:31:02,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778681017] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:02,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563623734] [2021-10-13 00:31:02,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:02,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:02,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:02,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:02,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:31:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:02,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:31:02,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:03,439 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-13 00:31:03,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563623734] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:03,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:31:03,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-13 00:31:03,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330445557] [2021-10-13 00:31:03,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:03,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:03,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:03,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:31:03,442 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 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) [2021-10-13 00:31:04,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:04,050 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2021-10-13 00:31:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:04,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 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 228 [2021-10-13 00:31:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:04,058 INFO L225 Difference]: With dead ends: 2320 [2021-10-13 00:31:04,058 INFO L226 Difference]: Without dead ends: 1250 [2021-10-13 00:31:04,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:31:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-13 00:31:04,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2021-10-13 00:31:04,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 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) [2021-10-13 00:31:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2021-10-13 00:31:04,085 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 228 [2021-10-13 00:31:04,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:04,086 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2021-10-13 00:31:04,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 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) [2021-10-13 00:31:04,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2021-10-13 00:31:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-10-13 00:31:04,090 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:04,090 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:31:04,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:04,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:04,316 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:04,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:04,316 INFO L82 PathProgramCache]: Analyzing trace with hash -39272449, now seen corresponding path program 1 times [2021-10-13 00:31:04,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:04,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393927923] [2021-10-13 00:31:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:04,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:31:04,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:04,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393927923] [2021-10-13 00:31:04,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393927923] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:04,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:04,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:04,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180274540] [2021-10-13 00:31:04,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:04,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:04,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:04,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:04,437 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-10-13 00:31:05,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:05,094 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2021-10-13 00:31:05,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:05,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 231 [2021-10-13 00:31:05,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:05,104 INFO L225 Difference]: With dead ends: 2854 [2021-10-13 00:31:05,104 INFO L226 Difference]: Without dead ends: 1784 [2021-10-13 00:31:05,106 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:05,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-10-13 00:31:05,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2021-10-13 00:31:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1289960740325296) internal successors, (2013), 1783 states have internal predecessors, (2013), 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) [2021-10-13 00:31:05,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2013 transitions. [2021-10-13 00:31:05,147 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2013 transitions. Word has length 231 [2021-10-13 00:31:05,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:05,148 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2013 transitions. [2021-10-13 00:31:05,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-10-13 00:31:05,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2013 transitions. [2021-10-13 00:31:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-10-13 00:31:05,155 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:05,155 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:05,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:31:05,156 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:05,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:05,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1928919929, now seen corresponding path program 1 times [2021-10-13 00:31:05,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:05,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325454741] [2021-10-13 00:31:05,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:05,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:05,345 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-10-13 00:31:05,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:05,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325454741] [2021-10-13 00:31:05,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325454741] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:05,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:05,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:05,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484821959] [2021-10-13 00:31:05,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:31:05,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:05,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:31:05,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:31:05,348 INFO L87 Difference]: Start difference. First operand 1784 states and 2013 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-10-13 00:31:06,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:06,047 INFO L93 Difference]: Finished difference Result 3624 states and 4105 transitions. [2021-10-13 00:31:06,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:31:06,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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 348 [2021-10-13 00:31:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:06,058 INFO L225 Difference]: With dead ends: 3624 [2021-10-13 00:31:06,058 INFO L226 Difference]: Without dead ends: 1962 [2021-10-13 00:31:06,061 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:31:06,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-13 00:31:06,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-10-13 00:31:06,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.0846887268648346) internal successors, (1934), 1783 states have internal predecessors, (1934), 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) [2021-10-13 00:31:06,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1934 transitions. [2021-10-13 00:31:06,129 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1934 transitions. Word has length 348 [2021-10-13 00:31:06,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:06,129 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1934 transitions. [2021-10-13 00:31:06,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-10-13 00:31:06,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1934 transitions. [2021-10-13 00:31:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2021-10-13 00:31:06,139 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:06,139 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:06,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:31:06,140 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:06,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:06,140 INFO L82 PathProgramCache]: Analyzing trace with hash 577845055, now seen corresponding path program 1 times [2021-10-13 00:31:06,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:06,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129476377] [2021-10-13 00:31:06,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:06,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 00:31:06,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:06,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129476377] [2021-10-13 00:31:06,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129476377] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:06,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:06,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:06,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732463523] [2021-10-13 00:31:06,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:06,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:06,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:06,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:06,310 INFO L87 Difference]: Start difference. First operand 1784 states and 1934 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2021-10-13 00:31:06,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:06,933 INFO L93 Difference]: Finished difference Result 4278 states and 4675 transitions. [2021-10-13 00:31:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:06,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 443 [2021-10-13 00:31:06,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:06,947 INFO L225 Difference]: With dead ends: 4278 [2021-10-13 00:31:06,948 INFO L226 Difference]: Without dead ends: 2674 [2021-10-13 00:31:06,950 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-13 00:31:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140. [2021-10-13 00:31:07,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.071996259934549) internal successors, (2293), 2139 states have internal predecessors, (2293), 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) [2021-10-13 00:31:07,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2293 transitions. [2021-10-13 00:31:07,022 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2293 transitions. Word has length 443 [2021-10-13 00:31:07,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:07,023 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2293 transitions. [2021-10-13 00:31:07,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2021-10-13 00:31:07,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2293 transitions. [2021-10-13 00:31:07,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-10-13 00:31:07,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:07,034 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:07,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:31:07,035 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:07,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:07,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1408157574, now seen corresponding path program 1 times [2021-10-13 00:31:07,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:07,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703298190] [2021-10-13 00:31:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:07,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:07,256 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 00:31:07,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:07,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703298190] [2021-10-13 00:31:07,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703298190] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:07,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:07,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:07,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406634935] [2021-10-13 00:31:07,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:07,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:07,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:07,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:07,260 INFO L87 Difference]: Start difference. First operand 2140 states and 2293 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2021-10-13 00:31:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:07,816 INFO L93 Difference]: Finished difference Result 4812 states and 5228 transitions. [2021-10-13 00:31:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:07,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 450 [2021-10-13 00:31:07,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:07,831 INFO L225 Difference]: With dead ends: 4812 [2021-10-13 00:31:07,831 INFO L226 Difference]: Without dead ends: 2852 [2021-10-13 00:31:07,834 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-13 00:31:07,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852. [2021-10-13 00:31:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0785689231848474) internal successors, (3075), 2851 states have internal predecessors, (3075), 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) [2021-10-13 00:31:07,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3075 transitions. [2021-10-13 00:31:07,902 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3075 transitions. Word has length 450 [2021-10-13 00:31:07,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:07,903 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3075 transitions. [2021-10-13 00:31:07,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2021-10-13 00:31:07,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3075 transitions. [2021-10-13 00:31:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-10-13 00:31:07,908 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:07,908 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:07,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:31:07,908 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:07,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:07,909 INFO L82 PathProgramCache]: Analyzing trace with hash -614119137, now seen corresponding path program 1 times [2021-10-13 00:31:07,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:07,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517486871] [2021-10-13 00:31:07,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:07,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 00:31:08,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:08,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517486871] [2021-10-13 00:31:08,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517486871] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:08,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:08,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:08,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885704889] [2021-10-13 00:31:08,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:08,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:08,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:08,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:08,119 INFO L87 Difference]: Start difference. First operand 2852 states and 3075 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2021-10-13 00:31:08,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:08,703 INFO L93 Difference]: Finished difference Result 6592 states and 7212 transitions. [2021-10-13 00:31:08,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:08,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 491 [2021-10-13 00:31:08,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:08,723 INFO L225 Difference]: With dead ends: 6592 [2021-10-13 00:31:08,723 INFO L226 Difference]: Without dead ends: 3920 [2021-10-13 00:31:08,727 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:08,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-10-13 00:31:08,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2021-10-13 00:31:08,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0783047993264103) internal successors, (3842), 3563 states have internal predecessors, (3842), 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) [2021-10-13 00:31:08,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3842 transitions. [2021-10-13 00:31:08,818 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3842 transitions. Word has length 491 [2021-10-13 00:31:08,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:08,819 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3842 transitions. [2021-10-13 00:31:08,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2021-10-13 00:31:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3842 transitions. [2021-10-13 00:31:08,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2021-10-13 00:31:08,827 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:08,827 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:08,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:31:08,828 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:08,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:08,829 INFO L82 PathProgramCache]: Analyzing trace with hash -596499667, now seen corresponding path program 1 times [2021-10-13 00:31:08,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:08,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806167096] [2021-10-13 00:31:08,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:08,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:09,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 1144 proven. 104 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-10-13 00:31:09,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:09,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806167096] [2021-10-13 00:31:09,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806167096] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:09,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651254360] [2021-10-13 00:31:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:09,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:09,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:09,163 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:09,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:31:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:09,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:31:09,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:10,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2021-10-13 00:31:10,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651254360] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:10,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:31:10,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 00:31:10,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775710829] [2021-10-13 00:31:10,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:10,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:10,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:10,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:31:10,956 INFO L87 Difference]: Start difference. First operand 3564 states and 3842 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2021-10-13 00:31:11,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:11,474 INFO L93 Difference]: Finished difference Result 7660 states and 8273 transitions. [2021-10-13 00:31:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:11,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 636 [2021-10-13 00:31:11,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:11,492 INFO L225 Difference]: With dead ends: 7660 [2021-10-13 00:31:11,492 INFO L226 Difference]: Without dead ends: 3564 [2021-10-13 00:31:11,496 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 635 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 31.4ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:31:11,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-10-13 00:31:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-10-13 00:31:11,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.072653570314936) internal successors, (3440), 3207 states have internal predecessors, (3440), 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) [2021-10-13 00:31:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3440 transitions. [2021-10-13 00:31:11,595 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3440 transitions. Word has length 636 [2021-10-13 00:31:11,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:11,596 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3440 transitions. [2021-10-13 00:31:11,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2021-10-13 00:31:11,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3440 transitions. [2021-10-13 00:31:11,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2021-10-13 00:31:11,604 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:11,604 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:11,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:11,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-13 00:31:11,832 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:11,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:11,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1688245835, now seen corresponding path program 1 times [2021-10-13 00:31:11,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:11,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760462308] [2021-10-13 00:31:11,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:11,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:12,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 1199 proven. 104 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-10-13 00:31:12,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:12,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760462308] [2021-10-13 00:31:12,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760462308] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:12,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803840540] [2021-10-13 00:31:12,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:12,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:12,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:12,223 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:12,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 00:31:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:12,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:31:12,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 1226 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2021-10-13 00:31:14,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803840540] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:14,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:31:14,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 00:31:14,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363473836] [2021-10-13 00:31:14,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:14,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:14,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:14,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:31:14,841 INFO L87 Difference]: Start difference. First operand 3208 states and 3440 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-10-13 00:31:15,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:15,371 INFO L93 Difference]: Finished difference Result 6414 states and 6882 transitions. [2021-10-13 00:31:15,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:15,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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 648 [2021-10-13 00:31:15,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:15,384 INFO L225 Difference]: With dead ends: 6414 [2021-10-13 00:31:15,384 INFO L226 Difference]: Without dead ends: 3208 [2021-10-13 00:31:15,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 28.7ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:31:15,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-13 00:31:15,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-10-13 00:31:15,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.066994037179937) internal successors, (3042), 2851 states have internal predecessors, (3042), 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) [2021-10-13 00:31:15,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3042 transitions. [2021-10-13 00:31:15,459 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3042 transitions. Word has length 648 [2021-10-13 00:31:15,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:15,460 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3042 transitions. [2021-10-13 00:31:15,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-10-13 00:31:15,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3042 transitions. [2021-10-13 00:31:15,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2021-10-13 00:31:15,469 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:15,470 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:31:15,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:15,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:15,684 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:15,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:15,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1823211339, now seen corresponding path program 1 times [2021-10-13 00:31:15,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:15,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904488627] [2021-10-13 00:31:15,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:15,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 1329 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-10-13 00:31:15,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:15,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904488627] [2021-10-13 00:31:15,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904488627] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:15,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025867040] [2021-10-13 00:31:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:15,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:15,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:15,997 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:16,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 00:31:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:16,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:31:16,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2021-10-13 00:31:18,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025867040] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:18,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:31:18,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-13 00:31:18,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034121357] [2021-10-13 00:31:18,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:18,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:18,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:18,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:31:18,465 INFO L87 Difference]: Start difference. First operand 2852 states and 3042 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2021-10-13 00:31:18,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:18,983 INFO L93 Difference]: Finished difference Result 6414 states and 6877 transitions. [2021-10-13 00:31:18,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:18,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 793 [2021-10-13 00:31:18,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:19,002 INFO L225 Difference]: With dead ends: 6414 [2021-10-13 00:31:19,002 INFO L226 Difference]: Without dead ends: 3742 [2021-10-13 00:31:19,005 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 793 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:31:19,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-10-13 00:31:19,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2021-10-13 00:31:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.059970457902511) internal successors, (3588), 3385 states have internal predecessors, (3588), 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) [2021-10-13 00:31:19,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3588 transitions. [2021-10-13 00:31:19,101 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3588 transitions. Word has length 793 [2021-10-13 00:31:19,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:19,103 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3588 transitions. [2021-10-13 00:31:19,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2021-10-13 00:31:19,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3588 transitions. [2021-10-13 00:31:19,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2021-10-13 00:31:19,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:19,113 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:31:19,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:19,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 00:31:19,340 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:19,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:19,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1112212444, now seen corresponding path program 1 times [2021-10-13 00:31:19,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:19,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234263739] [2021-10-13 00:31:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:19,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:19,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 1424 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-10-13 00:31:19,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:19,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234263739] [2021-10-13 00:31:19,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234263739] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:19,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678345885] [2021-10-13 00:31:19,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:19,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:19,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:19,686 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:19,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 00:31:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:21,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:31:21,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 833 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2021-10-13 00:31:22,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678345885] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:22,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:31:22,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-13 00:31:22,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948053187] [2021-10-13 00:31:22,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:22,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:22,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:22,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:31:22,553 INFO L87 Difference]: Start difference. First operand 3386 states and 3588 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2021-10-13 00:31:23,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:23,034 INFO L93 Difference]: Finished difference Result 7482 states and 7952 transitions. [2021-10-13 00:31:23,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:23,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 812 [2021-10-13 00:31:23,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:23,072 INFO L225 Difference]: With dead ends: 7482 [2021-10-13 00:31:23,072 INFO L226 Difference]: Without dead ends: 4276 [2021-10-13 00:31:23,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:31:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-10-13 00:31:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2021-10-13 00:31:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0563827190627288) internal successors, (4328), 4097 states have internal predecessors, (4328), 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) [2021-10-13 00:31:23,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4328 transitions. [2021-10-13 00:31:23,209 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4328 transitions. Word has length 812 [2021-10-13 00:31:23,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:23,211 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4328 transitions. [2021-10-13 00:31:23,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2021-10-13 00:31:23,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4328 transitions. [2021-10-13 00:31:23,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2021-10-13 00:31:23,227 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:23,227 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:31:23,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-13 00:31:23,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:23,444 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:23,445 INFO L82 PathProgramCache]: Analyzing trace with hash -264748761, now seen corresponding path program 1 times [2021-10-13 00:31:23,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:23,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537214202] [2021-10-13 00:31:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:23,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1997 backedges. 1473 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-10-13 00:31:23,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:23,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537214202] [2021-10-13 00:31:23,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537214202] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:23,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712505325] [2021-10-13 00:31:23,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:23,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:23,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:23,801 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:23,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 00:31:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:25,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:31:25,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1997 backedges. 1473 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-10-13 00:31:26,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712505325] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:26,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:31:26,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-13 00:31:26,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678158377] [2021-10-13 00:31:26,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:31:26,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:26,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:31:26,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:31:26,857 INFO L87 Difference]: Start difference. First operand 4098 states and 4328 transitions. Second operand has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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) [2021-10-13 00:31:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:27,477 INFO L93 Difference]: Finished difference Result 9084 states and 9602 transitions. [2021-10-13 00:31:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:31:27,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 826 [2021-10-13 00:31:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:27,488 INFO L225 Difference]: With dead ends: 9084 [2021-10-13 00:31:27,488 INFO L226 Difference]: Without dead ends: 5166 [2021-10-13 00:31:27,492 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 829 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:31:27,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-10-13 00:31:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4632. [2021-10-13 00:31:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0531202763981862) internal successors, (4877), 4631 states have internal predecessors, (4877), 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) [2021-10-13 00:31:27,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4877 transitions. [2021-10-13 00:31:27,634 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4877 transitions. Word has length 826 [2021-10-13 00:31:27,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:27,635 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4877 transitions. [2021-10-13 00:31:27,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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) [2021-10-13 00:31:27,636 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4877 transitions. [2021-10-13 00:31:27,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2021-10-13 00:31:27,647 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:27,648 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:27,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:27,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-13 00:31:27,866 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:27,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:27,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1279771883, now seen corresponding path program 1 times [2021-10-13 00:31:27,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:27,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832309814] [2021-10-13 00:31:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:27,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2638 backedges. 1790 proven. 0 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2021-10-13 00:31:28,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:28,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832309814] [2021-10-13 00:31:28,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832309814] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:28,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:28,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:28,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661485059] [2021-10-13 00:31:28,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:28,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:28,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:28,219 INFO L87 Difference]: Start difference. First operand 4632 states and 4877 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2021-10-13 00:31:28,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:28,648 INFO L93 Difference]: Finished difference Result 9440 states and 9970 transitions. [2021-10-13 00:31:28,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:28,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 903 [2021-10-13 00:31:28,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:28,669 INFO L225 Difference]: With dead ends: 9440 [2021-10-13 00:31:28,669 INFO L226 Difference]: Without dead ends: 4988 [2021-10-13 00:31:28,673 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:28,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-13 00:31:28,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-10-13 00:31:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0476190476190477) internal successors, (5038), 4809 states have internal predecessors, (5038), 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) [2021-10-13 00:31:28,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5038 transitions. [2021-10-13 00:31:28,807 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5038 transitions. Word has length 903 [2021-10-13 00:31:28,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:28,808 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5038 transitions. [2021-10-13 00:31:28,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2021-10-13 00:31:28,808 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5038 transitions. [2021-10-13 00:31:28,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2021-10-13 00:31:28,821 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:28,822 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:31:28,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 00:31:28,822 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:28,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:28,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1603463533, now seen corresponding path program 1 times [2021-10-13 00:31:28,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:28,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400912635] [2021-10-13 00:31:28,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:28,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2674 backedges. 1780 proven. 93 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2021-10-13 00:31:29,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:29,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400912635] [2021-10-13 00:31:29,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400912635] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:29,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762405099] [2021-10-13 00:31:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:29,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:29,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:29,172 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:29,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 00:31:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:30,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:31:30,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2674 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 2290 trivial. 0 not checked. [2021-10-13 00:31:32,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762405099] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:32,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:31:32,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 00:31:32,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187951208] [2021-10-13 00:31:32,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:32,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:32,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:32,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:31:32,399 INFO L87 Difference]: Start difference. First operand 4810 states and 5038 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2021-10-13 00:31:32,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:32,948 INFO L93 Difference]: Finished difference Result 9618 states and 10077 transitions. [2021-10-13 00:31:32,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:32,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 927 [2021-10-13 00:31:32,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:32,957 INFO L225 Difference]: With dead ends: 9618 [2021-10-13 00:31:32,958 INFO L226 Difference]: Without dead ends: 4988 [2021-10-13 00:31:32,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 926 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:31:32,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-13 00:31:33,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-10-13 00:31:33,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.043876065710127) internal successors, (5020), 4809 states have internal predecessors, (5020), 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) [2021-10-13 00:31:33,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5020 transitions. [2021-10-13 00:31:33,034 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5020 transitions. Word has length 927 [2021-10-13 00:31:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:33,035 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5020 transitions. [2021-10-13 00:31:33,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2021-10-13 00:31:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5020 transitions. [2021-10-13 00:31:33,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 936 [2021-10-13 00:31:33,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:33,049 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:31:33,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:33,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-13 00:31:33,264 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:33,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:33,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1365813249, now seen corresponding path program 1 times [2021-10-13 00:31:33,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:33,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512977101] [2021-10-13 00:31:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:33,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2697 backedges. 1794 proven. 93 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-10-13 00:31:33,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:33,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512977101] [2021-10-13 00:31:33,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512977101] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:33,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709930590] [2021-10-13 00:31:33,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:33,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:33,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:33,605 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:33,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 00:31:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:35,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:31:35,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2697 backedges. 1954 proven. 266 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-10-13 00:31:43,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709930590] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:43,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:31:43,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-10-13 00:31:43,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099483513] [2021-10-13 00:31:43,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 00:31:43,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:43,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:31:43,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:31:43,233 INFO L87 Difference]: Start difference. First operand 4810 states and 5020 transitions. Second operand has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 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) [2021-10-13 00:31:45,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:45,206 INFO L93 Difference]: Finished difference Result 10396 states and 10846 transitions. [2021-10-13 00:31:45,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 00:31:45,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 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 935 [2021-10-13 00:31:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:45,219 INFO L225 Difference]: With dead ends: 10396 [2021-10-13 00:31:45,220 INFO L226 Difference]: Without dead ends: 5404 [2021-10-13 00:31:45,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 946 GetRequests, 931 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 169.3ms TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-10-13 00:31:45,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2021-10-13 00:31:45,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 4810. [2021-10-13 00:31:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0316074027864421) internal successors, (4961), 4809 states have internal predecessors, (4961), 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) [2021-10-13 00:31:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4961 transitions. [2021-10-13 00:31:45,306 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4961 transitions. Word has length 935 [2021-10-13 00:31:45,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:45,307 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 4961 transitions. [2021-10-13 00:31:45,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 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) [2021-10-13 00:31:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4961 transitions. [2021-10-13 00:31:45,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1069 [2021-10-13 00:31:45,322 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:45,324 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:45,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:45,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-13 00:31:45,551 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:45,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:45,552 INFO L82 PathProgramCache]: Analyzing trace with hash 2022978308, now seen corresponding path program 1 times [2021-10-13 00:31:45,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:45,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770803222] [2021-10-13 00:31:45,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:45,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 3740 backedges. 1271 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2021-10-13 00:31:46,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:46,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770803222] [2021-10-13 00:31:46,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770803222] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:46,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:46,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:46,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144690239] [2021-10-13 00:31:46,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:46,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:46,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:46,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:46,134 INFO L87 Difference]: Start difference. First operand 4810 states and 4961 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2021-10-13 00:31:46,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:46,568 INFO L93 Difference]: Finished difference Result 9618 states and 9925 transitions. [2021-10-13 00:31:46,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:46,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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 1068 [2021-10-13 00:31:46,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:46,577 INFO L225 Difference]: With dead ends: 9618 [2021-10-13 00:31:46,577 INFO L226 Difference]: Without dead ends: 4988 [2021-10-13 00:31:46,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:46,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-13 00:31:46,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2021-10-13 00:31:46,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0284740324844597) internal successors, (5129), 4987 states have internal predecessors, (5129), 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) [2021-10-13 00:31:46,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5129 transitions. [2021-10-13 00:31:46,648 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5129 transitions. Word has length 1068 [2021-10-13 00:31:46,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:46,649 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5129 transitions. [2021-10-13 00:31:46,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2021-10-13 00:31:46,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5129 transitions. [2021-10-13 00:31:46,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2021-10-13 00:31:46,663 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:46,663 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:46,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 00:31:46,664 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:46,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:46,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1168039199, now seen corresponding path program 1 times [2021-10-13 00:31:46,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:46,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374525294] [2021-10-13 00:31:46,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:46,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:47,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3790 backedges. 1321 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2021-10-13 00:31:47,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:47,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374525294] [2021-10-13 00:31:47,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374525294] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:47,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:47,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:31:47,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248362807] [2021-10-13 00:31:47,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:31:47,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:47,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:31:47,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:31:47,383 INFO L87 Difference]: Start difference. First operand 4988 states and 5129 transitions. Second operand has 5 states, 5 states have (on average 76.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-10-13 00:31:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:48,099 INFO L93 Difference]: Finished difference Result 9800 states and 10079 transitions. [2021-10-13 00:31:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:31:48,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 4 states have internal predecessors, (380), 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 1093 [2021-10-13 00:31:48,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:48,107 INFO L225 Difference]: With dead ends: 9800 [2021-10-13 00:31:48,107 INFO L226 Difference]: Without dead ends: 4810 [2021-10-13 00:31:48,111 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:31:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-10-13 00:31:48,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4454. [2021-10-13 00:31:48,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0197619582304065) internal successors, (4541), 4453 states have internal predecessors, (4541), 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) [2021-10-13 00:31:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4541 transitions. [2021-10-13 00:31:48,209 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4541 transitions. Word has length 1093 [2021-10-13 00:31:48,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:48,211 INFO L470 AbstractCegarLoop]: Abstraction has 4454 states and 4541 transitions. [2021-10-13 00:31:48,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-10-13 00:31:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4541 transitions. [2021-10-13 00:31:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1117 [2021-10-13 00:31:48,232 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:48,233 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:48,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 00:31:48,234 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:48,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:48,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1857606004, now seen corresponding path program 1 times [2021-10-13 00:31:48,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:48,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118039299] [2021-10-13 00:31:48,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:48,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:48,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 2906 proven. 72 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2021-10-13 00:31:48,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:48,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118039299] [2021-10-13 00:31:48,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118039299] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:48,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436119812] [2021-10-13 00:31:48,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:48,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:48,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:48,852 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:48,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 00:31:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:51,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:31:51,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:31:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 2619 proven. 0 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2021-10-13 00:31:53,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436119812] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:53,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:31:53,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-10-13 00:31:53,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588604664] [2021-10-13 00:31:53,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:31:53,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:53,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:31:53,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:31:53,699 INFO L87 Difference]: Start difference. First operand 4454 states and 4541 transitions. Second operand has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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) [2021-10-13 00:31:54,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:54,324 INFO L93 Difference]: Finished difference Result 9262 states and 9450 transitions. [2021-10-13 00:31:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:31:54,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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 1116 [2021-10-13 00:31:54,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:54,333 INFO L225 Difference]: With dead ends: 9262 [2021-10-13 00:31:54,333 INFO L226 Difference]: Without dead ends: 4988 [2021-10-13 00:31:54,337 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1120 GetRequests, 1115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 16.0ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:31:54,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-13 00:31:54,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-10-13 00:31:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0189228529839884) internal successors, (4900), 4809 states have internal predecessors, (4900), 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) [2021-10-13 00:31:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4900 transitions. [2021-10-13 00:31:54,402 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4900 transitions. Word has length 1116 [2021-10-13 00:31:54,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:54,403 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 4900 transitions. [2021-10-13 00:31:54,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 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) [2021-10-13 00:31:54,403 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4900 transitions. [2021-10-13 00:31:54,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1119 [2021-10-13 00:31:54,418 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:54,419 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:54,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:31:54,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-13 00:31:54,632 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:54,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:54,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1652168696, now seen corresponding path program 1 times [2021-10-13 00:31:54,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:54,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882548629] [2021-10-13 00:31:54,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:54,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 3676 backedges. 2336 proven. 0 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2021-10-13 00:31:55,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:55,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882548629] [2021-10-13 00:31:55,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882548629] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:55,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:55,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:55,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440132727] [2021-10-13 00:31:55,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:55,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:55,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:55,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:55,136 INFO L87 Difference]: Start difference. First operand 4810 states and 4900 transitions. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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) [2021-10-13 00:31:55,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:55,518 INFO L93 Difference]: Finished difference Result 9618 states and 9798 transitions. [2021-10-13 00:31:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:55,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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 1118 [2021-10-13 00:31:55,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:55,524 INFO L225 Difference]: With dead ends: 9618 [2021-10-13 00:31:55,524 INFO L226 Difference]: Without dead ends: 4632 [2021-10-13 00:31:55,527 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:55,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-10-13 00:31:55,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2021-10-13 00:31:55,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0172917134516057) internal successors, (4530), 4453 states have internal predecessors, (4530), 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) [2021-10-13 00:31:55,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4530 transitions. [2021-10-13 00:31:55,580 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4530 transitions. Word has length 1118 [2021-10-13 00:31:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:55,581 INFO L470 AbstractCegarLoop]: Abstraction has 4454 states and 4530 transitions. [2021-10-13 00:31:55,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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) [2021-10-13 00:31:55,582 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4530 transitions. [2021-10-13 00:31:55,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1654 [2021-10-13 00:31:55,604 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:55,605 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:31:55,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 00:31:55,605 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:55,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:55,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1570608280, now seen corresponding path program 1 times [2021-10-13 00:31:55,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:55,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609186259] [2021-10-13 00:31:55,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:55,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 4557 proven. 588 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2021-10-13 00:31:56,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:56,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609186259] [2021-10-13 00:31:56,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609186259] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:31:56,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094406317] [2021-10-13 00:31:56,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:56,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:31:56,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:56,712 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:31:56,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 00:31:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:59,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:31:59,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 3686 proven. 498 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2021-10-13 00:32:04,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094406317] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:32:04,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:32:04,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-10-13 00:32:04,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545656591] [2021-10-13 00:32:04,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 00:32:04,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:32:04,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:32:04,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:32:04,934 INFO L87 Difference]: Start difference. First operand 4454 states and 4530 transitions. Second operand has 11 states, 11 states have (on average 113.54545454545455) internal successors, (1249), 11 states have internal predecessors, (1249), 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) [2021-10-13 00:32:09,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:09,169 INFO L93 Difference]: Finished difference Result 10703 states and 10884 transitions. [2021-10-13 00:32:09,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:32:09,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 113.54545454545455) internal successors, (1249), 11 states have internal predecessors, (1249), 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 1653 [2021-10-13 00:32:09,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:09,175 INFO L225 Difference]: With dead ends: 10703 [2021-10-13 00:32:09,175 INFO L226 Difference]: Without dead ends: 6412 [2021-10-13 00:32:09,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1676 GetRequests, 1659 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 157.3ms TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2021-10-13 00:32:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-10-13 00:32:09,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 5166. [2021-10-13 00:32:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.016650532429816) internal successors, (5251), 5165 states have internal predecessors, (5251), 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) [2021-10-13 00:32:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5251 transitions. [2021-10-13 00:32:09,286 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5251 transitions. Word has length 1653 [2021-10-13 00:32:09,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:09,288 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5251 transitions. [2021-10-13 00:32:09,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 113.54545454545455) internal successors, (1249), 11 states have internal predecessors, (1249), 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) [2021-10-13 00:32:09,288 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5251 transitions. [2021-10-13 00:32:09,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1827 [2021-10-13 00:32:09,316 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:09,317 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:32:09,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:09,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-13 00:32:09,544 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:32:09,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:09,544 INFO L82 PathProgramCache]: Analyzing trace with hash 118949285, now seen corresponding path program 1 times [2021-10-13 00:32:09,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:32:09,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594753754] [2021-10-13 00:32:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:09,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:32:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 10389 backedges. 3542 proven. 1045 refuted. 0 times theorem prover too weak. 5802 trivial. 0 not checked. [2021-10-13 00:32:10,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:32:10,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594753754] [2021-10-13 00:32:10,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594753754] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:32:10,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764206672] [2021-10-13 00:32:10,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:10,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:32:10,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:32:10,399 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:32:10,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 00:32:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:13,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:32:14,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 10389 backedges. 4587 proven. 0 refuted. 0 times theorem prover too weak. 5802 trivial. 0 not checked. [2021-10-13 00:32:17,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764206672] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:17,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:32:17,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 00:32:17,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508633364] [2021-10-13 00:32:17,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:32:17,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:32:17,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:32:17,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:32:17,521 INFO L87 Difference]: Start difference. First operand 5166 states and 5251 transitions. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-10-13 00:32:17,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:17,888 INFO L93 Difference]: Finished difference Result 10686 states and 10858 transitions. [2021-10-13 00:32:17,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:32:17,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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 1826 [2021-10-13 00:32:17,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:17,892 INFO L225 Difference]: With dead ends: 10686 [2021-10-13 00:32:17,892 INFO L226 Difference]: Without dead ends: 4276 [2021-10-13 00:32:17,895 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1829 GetRequests, 1825 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:32:17,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-10-13 00:32:17,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3742. [2021-10-13 00:32:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0133654103180967) internal successors, (3791), 3741 states have internal predecessors, (3791), 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) [2021-10-13 00:32:17,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3791 transitions. [2021-10-13 00:32:17,929 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3791 transitions. Word has length 1826 [2021-10-13 00:32:17,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:17,930 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 3791 transitions. [2021-10-13 00:32:17,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-10-13 00:32:17,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3791 transitions. [2021-10-13 00:32:17,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1951 [2021-10-13 00:32:17,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:17,961 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:32:18,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:18,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-13 00:32:18,188 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:32:18,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:18,188 INFO L82 PathProgramCache]: Analyzing trace with hash -325120608, now seen corresponding path program 1 times [2021-10-13 00:32:18,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:32:18,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970856121] [2021-10-13 00:32:18,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:18,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:32:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 11999 backedges. 7122 proven. 404 refuted. 0 times theorem prover too weak. 4473 trivial. 0 not checked. [2021-10-13 00:32:19,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:32:19,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970856121] [2021-10-13 00:32:19,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970856121] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:32:19,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952020406] [2021-10-13 00:32:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:19,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:32:19,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:32:19,270 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:32:19,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 00:32:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:23,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:32:23,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 11999 backedges. 2324 proven. 0 refuted. 0 times theorem prover too weak. 9675 trivial. 0 not checked. [2021-10-13 00:32:27,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952020406] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:27,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:32:27,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 00:32:27,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640407720] [2021-10-13 00:32:27,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:32:27,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:32:27,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:32:27,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:32:27,260 INFO L87 Difference]: Start difference. First operand 3742 states and 3791 transitions. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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) [2021-10-13 00:32:27,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:27,626 INFO L93 Difference]: Finished difference Result 7126 states and 7222 transitions. [2021-10-13 00:32:27,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:32:27,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 1950 [2021-10-13 00:32:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:27,629 INFO L225 Difference]: With dead ends: 7126 [2021-10-13 00:32:27,630 INFO L226 Difference]: Without dead ends: 3742 [2021-10-13 00:32:27,631 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1954 GetRequests, 1949 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 20.5ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:32:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-10-13 00:32:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2021-10-13 00:32:27,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0126298063429695) internal successors, (3608), 3563 states have internal predecessors, (3608), 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) [2021-10-13 00:32:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3608 transitions. [2021-10-13 00:32:27,668 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3608 transitions. Word has length 1950 [2021-10-13 00:32:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:27,670 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3608 transitions. [2021-10-13 00:32:27,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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) [2021-10-13 00:32:27,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3608 transitions. [2021-10-13 00:32:27,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2148 [2021-10-13 00:32:27,704 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:32:27,705 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:32:27,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:27,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-13 00:32:27,912 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:32:27,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:32:27,913 INFO L82 PathProgramCache]: Analyzing trace with hash -634425027, now seen corresponding path program 1 times [2021-10-13 00:32:27,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:32:27,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706310997] [2021-10-13 00:32:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:27,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:32:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:29,054 INFO L134 CoverageAnalysis]: Checked inductivity of 14973 backedges. 10501 proven. 103 refuted. 0 times theorem prover too weak. 4369 trivial. 0 not checked. [2021-10-13 00:32:29,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:32:29,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706310997] [2021-10-13 00:32:29,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706310997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:32:29,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764442362] [2021-10-13 00:32:29,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:32:29,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:32:29,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:32:29,056 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:32:29,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 00:32:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:32:33,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:32:33,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:32:38,233 INFO L134 CoverageAnalysis]: Checked inductivity of 14973 backedges. 9751 proven. 0 refuted. 0 times theorem prover too weak. 5222 trivial. 0 not checked. [2021-10-13 00:32:38,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764442362] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:32:38,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:32:38,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 00:32:38,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518861862] [2021-10-13 00:32:38,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:32:38,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:32:38,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:32:38,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:32:38,237 INFO L87 Difference]: Start difference. First operand 3564 states and 3608 transitions. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2021-10-13 00:32:38,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:32:38,563 INFO L93 Difference]: Finished difference Result 6412 states and 6491 transitions. [2021-10-13 00:32:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:32:38,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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 2147 [2021-10-13 00:32:38,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:32:38,565 INFO L225 Difference]: With dead ends: 6412 [2021-10-13 00:32:38,565 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:32:38,567 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2151 GetRequests, 2146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:32:38,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:32:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:32:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-13 00:32:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:32:38,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2147 [2021-10-13 00:32:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:32:38,569 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:32:38,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2021-10-13 00:32:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:32:38,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:32:38,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:32:38,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:32:38,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:32:38,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:32:38,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:32:39,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:32:39,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:32:41,887 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-13 00:32:41,887 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-13 00:32:41,887 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-13 00:32:41,887 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-13 00:32:41,887 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-13 00:32:41,888 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,890 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,890 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,890 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-13 00:32:41,890 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 00:32:41,891 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 00:32:41,892 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-13 00:32:41,892 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-13 00:32:41,892 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-13 00:32:41,892 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,892 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,892 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,892 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-13 00:32:41,892 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 00:32:41,893 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 00:32:41,893 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 00:32:41,893 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-13 00:32:41,893 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-13 00:32:41,893 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-13 00:32:41,893 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-13 00:32:41,893 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,894 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,895 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-13 00:32:41,896 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 00:32:41,897 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 00:32:41,897 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 00:32:41,897 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-13 00:32:41,897 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-13 00:32:41,897 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-13 00:32:41,897 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-13 00:32:41,897 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-13 00:32:41,898 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,898 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,898 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,898 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-13 00:32:41,898 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 00:32:41,898 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 00:32:41,899 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 00:32:41,899 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-13 00:32:41,899 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-13 00:32:41,899 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-13 00:32:41,899 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-13 00:32:41,899 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,900 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,900 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,900 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 00:32:41,900 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 00:32:41,900 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 00:32:41,900 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:32:41,900 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-13 00:32:41,901 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2021-10-13 00:32:41,901 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-13 00:32:41,901 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-13 00:32:41,901 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-13 00:32:41,901 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-13 00:32:41,901 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,902 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,902 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,902 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-13 00:32:41,902 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-13 00:32:41,902 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 00:32:41,902 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 00:32:41,902 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 00:32:41,903 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-13 00:32:41,903 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-13 00:32:41,903 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-13 00:32:41,903 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,903 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,903 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,904 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 00:32:41,904 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 00:32:41,904 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 00:32:41,904 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-13 00:32:41,904 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-13 00:32:41,904 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-13 00:32:41,904 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-13 00:32:41,905 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-13 00:32:41,905 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,905 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,905 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,905 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-13 00:32:41,905 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-13 00:32:41,906 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 00:32:41,906 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 00:32:41,906 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 00:32:41,906 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-13 00:32:41,906 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-13 00:32:41,906 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-13 00:32:41,906 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,907 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,907 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,907 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-13 00:32:41,907 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 00:32:41,907 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 00:32:41,907 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 00:32:41,907 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-13 00:32:41,908 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-13 00:32:41,908 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-13 00:32:41,908 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-13 00:32:41,908 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,908 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,908 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,909 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-13 00:32:41,909 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 00:32:41,909 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 00:32:41,909 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 00:32:41,909 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-13 00:32:41,909 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-13 00:32:41,909 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-13 00:32:41,910 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-13 00:32:41,910 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,910 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,910 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-13 00:32:41,910 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 00:32:41,910 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 00:32:41,910 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-13 00:32:41,911 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-13 00:32:41,911 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-13 00:32:41,911 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-13 00:32:41,911 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-13 00:32:41,911 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,911 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,912 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-13 00:32:41,912 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:32:41,912 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 00:32:41,912 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 00:32:41,912 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-13 00:32:41,912 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-13 00:32:41,912 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-13 00:32:41,913 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,913 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,913 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse2 (<= (+ 49 ~a12~0) 0)) (.cse11 (<= 9 ~a21~0)) (.cse12 (<= ~a21~0 9)) (.cse13 (<= ~a15~0 8)) (.cse6 (<= 8 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse16 (< 80 ~a12~0)) (.cse7 (<= ~a21~0 8)) (.cse3 (= ~a15~0 8))) (let ((.cse5 (<= ~a15~0 7)) (.cse14 (<= ~a12~0 76)) (.cse9 (<= ~a12~0 11)) (.cse1 (<= ~a21~0 7)) (.cse10 (<= 10 ~a21~0)) (.cse19 (<= 7 ~a21~0)) (.cse8 (<= 9 ~a15~0)) (.cse20 (<= ~a12~0 10)) (.cse15 (< 0 (+ ~a12~0 43))) (.cse17 (or (and .cse11 .cse12 .cse0 .cse13 .cse16) (and .cse0 .cse13 .cse16 .cse6 .cse7 (not (= 5 ~a15~0))) (and .cse0 .cse16 .cse7 .cse3))) (.cse4 (let ((.cse21 (<= ~a15~0 6))) (or (and .cse0 .cse21) (and .cse21 .cse2)))) (.cse18 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0) (and .cse0 .cse5 .cse6 .cse7) (and .cse0 .cse8 (<= ~a12~0 95434) (< 95380 ~a12~0)) (and .cse0 .cse8 .cse6 .cse7 (<= (+ ~a12~0 526767) 0)) (and .cse9 .cse0 .cse10) (and .cse11 .cse12 .cse0 .cse13 .cse14 .cse15) (and .cse11 .cse0 .cse5 .cse15) (and .cse0 .cse16 (= ~a21~0 6) (= 7 ~a15~0)) (and .cse17 .cse18) (and .cse0 (or (and .cse14 .cse6 .cse7 .cse15 .cse3) (and .cse9 .cse19 .cse15 .cse3))) (and .cse0 .cse13 .cse1 (exists ((v_~a12~0_444 Int)) (and (< 95380 v_~a12~0_444) (<= (+ 546123 ~a12~0) (div (* v_~a12~0_444 9) 10)) (<= v_~a12~0_444 95434)))) (and .cse0 .cse16 .cse10) (and .cse0 .cse19 .cse8 .cse16) (and (<= ~a12~0 72) .cse0 .cse6 .cse7 (< 18 ~a12~0)) (and .cse0 .cse13 .cse18 .cse20 .cse15) (and .cse0 .cse20 .cse6 .cse7 .cse15) (and .cse17 (<= ~a12~0 73282)) (and .cse4 .cse18) (and .cse0 .cse13 .cse18 .cse2)))) [2021-10-13 00:32:41,913 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-13 00:32:41,913 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-13 00:32:41,914 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 00:32:41,914 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 00:32:41,914 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-13 00:32:41,914 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-13 00:32:41,914 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-13 00:32:41,914 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-13 00:32:41,914 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,915 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,915 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-13 00:32:41,915 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-13 00:32:41,915 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-13 00:32:41,915 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 00:32:41,915 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 00:32:41,916 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-13 00:32:41,916 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-13 00:32:41,916 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-13 00:32:41,916 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,916 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,916 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:32:41,917 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-13 00:32:41,917 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-13 00:32:41,917 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 00:32:41,917 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 00:32:41,917 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-13 00:32:41,917 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-13 00:32:41,917 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,918 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,918 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 00:32:41,918 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,918 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-13 00:32:41,918 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse2 (<= (+ 49 ~a12~0) 0)) (.cse11 (<= 9 ~a21~0)) (.cse12 (<= ~a21~0 9)) (.cse13 (<= ~a15~0 8)) (.cse6 (<= 8 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse16 (< 80 ~a12~0)) (.cse7 (<= ~a21~0 8)) (.cse3 (= ~a15~0 8))) (let ((.cse5 (<= ~a15~0 7)) (.cse14 (<= ~a12~0 76)) (.cse9 (<= ~a12~0 11)) (.cse1 (<= ~a21~0 7)) (.cse10 (<= 10 ~a21~0)) (.cse19 (<= 7 ~a21~0)) (.cse8 (<= 9 ~a15~0)) (.cse20 (<= ~a12~0 10)) (.cse15 (< 0 (+ ~a12~0 43))) (.cse17 (or (and .cse11 .cse12 .cse0 .cse13 .cse16) (and .cse0 .cse13 .cse16 .cse6 .cse7 (not (= 5 ~a15~0))) (and .cse0 .cse16 .cse7 .cse3))) (.cse4 (let ((.cse21 (<= ~a15~0 6))) (or (and .cse0 .cse21) (and .cse21 .cse2)))) (.cse18 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0) (and .cse0 .cse5 .cse6 .cse7) (and .cse0 .cse8 (<= ~a12~0 95434) (< 95380 ~a12~0)) (and .cse0 .cse8 .cse6 .cse7 (<= (+ ~a12~0 526767) 0)) (and .cse9 .cse0 .cse10) (and .cse11 .cse12 .cse0 .cse13 .cse14 .cse15) (and .cse11 .cse0 .cse5 .cse15) (and .cse0 .cse16 (= ~a21~0 6) (= 7 ~a15~0)) (and .cse17 .cse18) (and .cse0 (or (and .cse14 .cse6 .cse7 .cse15 .cse3) (and .cse9 .cse19 .cse15 .cse3))) (and .cse0 .cse13 .cse1 (exists ((v_~a12~0_444 Int)) (and (< 95380 v_~a12~0_444) (<= (+ 546123 ~a12~0) (div (* v_~a12~0_444 9) 10)) (<= v_~a12~0_444 95434)))) (and .cse0 .cse16 .cse10) (and .cse0 .cse19 .cse8 .cse16) (and (<= ~a12~0 72) .cse0 .cse6 .cse7 (< 18 ~a12~0)) (and .cse0 .cse13 .cse18 .cse20 .cse15) (and .cse0 .cse20 .cse6 .cse7 .cse15) (and .cse17 (<= ~a12~0 73282)) (and .cse4 .cse18) (and .cse0 .cse13 .cse18 .cse2)))) [2021-10-13 00:32:41,919 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-13 00:32:41,919 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-13 00:32:41,919 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 00:32:41,919 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 00:32:41,919 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 00:32:41,919 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-13 00:32:41,919 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-13 00:32:41,920 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-13 00:32:41,920 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-13 00:32:41,920 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,920 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,920 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 00:32:41,920 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-13 00:32:41,920 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 00:32:41,921 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 00:32:41,921 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 00:32:41,925 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:32:41,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,936 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,936 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,959 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,959 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,959 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:41,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:32:41 BoogieIcfgContainer [2021-10-13 00:32:41,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:32:41,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:32:41,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:32:41,965 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:32:41,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:30:56" (3/4) ... [2021-10-13 00:32:41,968 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:32:41,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 00:32:41,995 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:32:41,997 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:32:41,998 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:32:42,022 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((a24 == 1 && a21 <= 7) && 49 + a12 <= 0) && a15 == 8) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && a21 <= 8)) || (((a24 == 1 && 9 <= a15) && a12 <= 95434) && 95380 < a12)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || (((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && a12 <= 76) && 0 < a12 + 43)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((a24 == 1 && 80 < a12) && a21 == 6) && 7 == a15)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a21 <= 6)) || (a24 == 1 && (((((a12 <= 76 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43) && a15 == 8) || (((a12 <= 11 && 7 <= a21) && 0 < a12 + 43) && a15 == 8)))) || (((a24 == 1 && a15 <= 8) && a21 <= 7) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 80 < a12) && 10 <= a21)) || (((a24 == 1 && 7 <= a21) && 9 <= a15) && 80 < a12)) || ((((a12 <= 72 && a24 == 1) && 8 <= a21) && a21 <= 8) && 18 < a12)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && a12 <= 10) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a12 <= 73282)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) [2021-10-13 00:32:42,026 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((a24 == 1 && a21 <= 7) && 49 + a12 <= 0) && a15 == 8) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && a21 <= 8)) || (((a24 == 1 && 9 <= a15) && a12 <= 95434) && 95380 < a12)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || (((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && a12 <= 76) && 0 < a12 + 43)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((a24 == 1 && 80 < a12) && a21 == 6) && 7 == a15)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a21 <= 6)) || (a24 == 1 && (((((a12 <= 76 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43) && a15 == 8) || (((a12 <= 11 && 7 <= a21) && 0 < a12 + 43) && a15 == 8)))) || (((a24 == 1 && a15 <= 8) && a21 <= 7) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 80 < a12) && 10 <= a21)) || (((a24 == 1 && 7 <= a21) && 9 <= a15) && 80 < a12)) || ((((a12 <= 72 && a24 == 1) && 8 <= a21) && a21 <= 8) && 18 < a12)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && a12 <= 10) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a12 <= 73282)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) [2021-10-13 00:32:42,115 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:32:42,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:32:42,117 INFO L168 Benchmark]: Toolchain (without parser) took 108222.72 ms. Allocated memory was 115.3 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 72.0 MB in the beginning and 674.9 MB in the end (delta: -602.9 MB). Peak memory consumption was 845.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:32:42,117 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 115.3 MB. Free memory is still 90.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:32:42,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.18 ms. Allocated memory is still 115.3 MB. Free memory was 71.8 MB in the beginning and 67.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:32:42,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.73 ms. Allocated memory is still 115.3 MB. Free memory was 66.6 MB in the beginning and 57.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:32:42,119 INFO L168 Benchmark]: Boogie Preprocessor took 122.05 ms. Allocated memory is still 115.3 MB. Free memory was 57.1 MB in the beginning and 51.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:32:42,119 INFO L168 Benchmark]: RCFGBuilder took 1618.35 ms. Allocated memory was 115.3 MB in the beginning and 172.0 MB in the end (delta: 56.6 MB). Free memory was 51.4 MB in the beginning and 82.6 MB in the end (delta: -31.2 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:32:42,119 INFO L168 Benchmark]: TraceAbstraction took 105456.93 ms. Allocated memory was 172.0 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 82.6 MB in the beginning and 693.8 MB in the end (delta: -611.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 16.1 GB. [2021-10-13 00:32:42,120 INFO L168 Benchmark]: Witness Printer took 151.17 ms. Allocated memory is still 1.6 GB. Free memory was 693.8 MB in the beginning and 674.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:32:42,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 115.3 MB. Free memory is still 90.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 736.18 ms. Allocated memory is still 115.3 MB. Free memory was 71.8 MB in the beginning and 67.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 129.73 ms. Allocated memory is still 115.3 MB. Free memory was 66.6 MB in the beginning and 57.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 122.05 ms. Allocated memory is still 115.3 MB. Free memory was 57.1 MB in the beginning and 51.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1618.35 ms. Allocated memory was 115.3 MB in the beginning and 172.0 MB in the end (delta: 56.6 MB). Free memory was 51.4 MB in the beginning and 82.6 MB in the end (delta: -31.2 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 105456.93 ms. Allocated memory was 172.0 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 82.6 MB in the beginning and 693.8 MB in the end (delta: -611.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 16.1 GB. * Witness Printer took 151.17 ms. Allocated memory is still 1.6 GB. Free memory was 693.8 MB in the beginning and 674.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 105337.4ms, OverallIterations: 26, TraceHistogramMax: 18, EmptinessCheckTime: 352.6ms, AutomataDifference: 20849.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3110.9ms, InitialAbstractionConstructionTime: 19.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3310 SDtfs, 3833 SDslu, 295 SDs, 0 SdLazy, 22027 SolverSat, 1296 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15260.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14770 GetRequests, 14672 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 596.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5166occurred in iteration=23, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1800.9ms AutomataMinimizationTime, 26 MinimizatonAttempts, 7002 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 89 NumberOfFragments, 849 HoareAnnotationTreeSize, 3 FomulaSimplifications, 28064 FormulaSimplificationTreeSizeReduction, 472.9ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 9004 FormulaSimplificationTreeSizeReductionInter, 2630.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1282.0ms SsaConstructionTime, 4446.1ms SatisfiabilityAnalysisTime, 47075.3ms InterpolantComputationTime, 35872 NumberOfCodeBlocks, 35872 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 35832 ConstructedInterpolants, 55 QuantifiedInterpolants, 111461 SizeOfPredicates, 1 NumberOfNonLiveVariables, 18211 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 40 InterpolantComputations, 23 PerfectInterpolantSequences, 142517/146588 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant [2021-10-13 00:32:42,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((a24 == 1 && a21 <= 7) && 49 + a12 <= 0) && a15 == 8) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && a21 <= 8)) || (((a24 == 1 && 9 <= a15) && a12 <= 95434) && 95380 < a12)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || (((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && a12 <= 76) && 0 < a12 + 43)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((a24 == 1 && 80 < a12) && a21 == 6) && 7 == a15)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a21 <= 6)) || (a24 == 1 && (((((a12 <= 76 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43) && a15 == 8) || (((a12 <= 11 && 7 <= a21) && 0 < a12 + 43) && a15 == 8)))) || (((a24 == 1 && a15 <= 8) && a21 <= 7) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 80 < a12) && 10 <= a21)) || (((a24 == 1 && 7 <= a21) && 9 <= a15) && 80 < a12)) || ((((a12 <= 72 && a24 == 1) && 8 <= a21) && a21 <= 8) && 18 < a12)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && a12 <= 10) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a12 <= 73282)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant [2021-10-13 00:32:42,135 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] [2021-10-13 00:32:42,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_444,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((a24 == 1 && a21 <= 7) && 49 + a12 <= 0) && a15 == 8) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && a21 <= 8)) || (((a24 == 1 && 9 <= a15) && a12 <= 95434) && 95380 < a12)) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 526767 <= 0)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || (((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && a12 <= 76) && 0 < a12 + 43)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || (((a24 == 1 && 80 < a12) && a21 == 6) && 7 == a15)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a21 <= 6)) || (a24 == 1 && (((((a12 <= 76 && 8 <= a21) && a21 <= 8) && 0 < a12 + 43) && a15 == 8) || (((a12 <= 11 && 7 <= a21) && 0 < a12 + 43) && a15 == 8)))) || (((a24 == 1 && a15 <= 8) && a21 <= 7) && (\exists v_~a12~0_444 : int :: (95380 < v_~a12~0_444 && 546123 + a12 <= v_~a12~0_444 * 9 / 10) && v_~a12~0_444 <= 95434))) || ((a24 == 1 && 80 < a12) && 10 <= a21)) || (((a24 == 1 && 7 <= a21) && 9 <= a15) && 80 < a12)) || ((((a12 <= 72 && a24 == 1) && 8 <= a21) && a21 <= 8) && 18 < a12)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && a12 <= 10) && 0 < a12 + 43)) || ((((a24 == 1 && a12 <= 10) && 8 <= a21) && a21 <= 8) && 0 < a12 + 43)) || (((((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 8) && 80 < a12) || (((((a24 == 1 && a15 <= 8) && 80 < a12) && 8 <= a21) && a21 <= 8) && !(5 == a15))) || (((a24 == 1 && 80 < a12) && a21 <= 8) && a15 == 8)) && a12 <= 73282)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && a21 <= 6) && 49 + a12 <= 0) RESULT: Ultimate proved your program to be correct! [2021-10-13 00:32:42,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc89026c-eb14-4baa-8c96-29afc8f516fa/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...