./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label48.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label48.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1479ddd90ec2fcde77d063083da596ee818d8098bb47b0581d7cfb4606042d51 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:52:49,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:52:49,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:52:50,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:52:50,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:52:50,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:52:50,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:52:50,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:52:50,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:52:50,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:52:50,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:52:50,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:52:50,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:52:50,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:52:50,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:52:50,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:52:50,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:52:50,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:52:50,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:52:50,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:52:50,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:52:50,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:52:50,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:52:50,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:52:50,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:52:50,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:52:50,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:52:50,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:52:50,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:52:50,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:52:50,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:52:50,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:52:50,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:52:50,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:52:50,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:52:50,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:52:50,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:52:50,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:52:50,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:52:50,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:52:50,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:52:50,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 22:52:50,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:52:50,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:52:50,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:52:50,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:52:50,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:52:50,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:52:50,182 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:52:50,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:52:50,183 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:52:50,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:52:50,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:52:50,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:52:50,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:52:50,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:52:50,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:52:50,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:52:50,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:52:50,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:52:50,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:52:50,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:52:50,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:52:50,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:52:50,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:52:50,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:52:50,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:52:50,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:52:50,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:52:50,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:52:50,192 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:52:50,194 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:52:50,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:52:50,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:52:50,196 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_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1479ddd90ec2fcde77d063083da596ee818d8098bb47b0581d7cfb4606042d51 [2021-11-02 22:52:50,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:52:50,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:52:50,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:52:50,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:52:50,565 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:52:50,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/eca-rers2012/Problem01_label48.c [2021-11-02 22:52:50,665 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/data/3f9032d67/7cec7a6b633f40ba95b59216420904de/FLAG0915d6d8a [2021-11-02 22:52:51,389 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:52:51,390 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/sv-benchmarks/c/eca-rers2012/Problem01_label48.c [2021-11-02 22:52:51,408 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/data/3f9032d67/7cec7a6b633f40ba95b59216420904de/FLAG0915d6d8a [2021-11-02 22:52:51,576 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/data/3f9032d67/7cec7a6b633f40ba95b59216420904de [2021-11-02 22:52:51,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:52:51,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:52:51,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:52:51,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:52:51,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:52:51,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:52:51" (1/1) ... [2021-11-02 22:52:51,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@628be526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:51, skipping insertion in model container [2021-11-02 22:52:51,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:52:51" (1/1) ... [2021-11-02 22:52:51,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:52:51,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:52:52,314 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_bffc77eb-fb3f-4c90-9b24-e038246a5a20/sv-benchmarks/c/eca-rers2012/Problem01_label48.c[20593,20606] [2021-11-02 22:52:52,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:52:52,361 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:52:52,499 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_bffc77eb-fb3f-4c90-9b24-e038246a5a20/sv-benchmarks/c/eca-rers2012/Problem01_label48.c[20593,20606] [2021-11-02 22:52:52,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:52:52,529 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:52:52,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52 WrapperNode [2021-11-02 22:52:52,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:52:52,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:52:52,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:52:52,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:52:52,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:52:52,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:52:52,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:52:52,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:52:52,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:52:52,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:52:52,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:52:52,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:52:52,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (1/1) ... [2021-11-02 22:52:52,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:52:52,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:52:52,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:52:52,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:52:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:52:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:52:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:52:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:52:54,404 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:52:54,404 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-02 22:52:54,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:52:54 BoogieIcfgContainer [2021-11-02 22:52:54,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:52:54,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:52:54,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:52:54,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:52:54,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:52:51" (1/3) ... [2021-11-02 22:52:54,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c125b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:52:54, skipping insertion in model container [2021-11-02 22:52:54,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:52:52" (2/3) ... [2021-11-02 22:52:54,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c125b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:52:54, skipping insertion in model container [2021-11-02 22:52:54,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:52:54" (3/3) ... [2021-11-02 22:52:54,419 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label48.c [2021-11-02 22:52:54,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:52:54,429 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 22:52:54,512 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:52:54,523 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:52:54,523 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 22:52:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:54,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-02 22:52:54,614 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:52:54,615 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:52:54,616 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:52:54,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:52:54,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1763883850, now seen corresponding path program 1 times [2021-11-02 22:52:54,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:52:54,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831999207] [2021-11-02 22:52:54,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:52:54,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:52:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:52:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:52:55,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:52:55,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831999207] [2021-11-02 22:52:55,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831999207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:52:55,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:52:55,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:52:55,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447867761] [2021-11-02 22:52:55,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:52:55,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:52:55,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:52:55,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:52:55,336 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:56,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:52:56,432 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-11-02 22:52:56,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:52:56,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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 121 [2021-11-02 22:52:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:52:56,465 INFO L225 Difference]: With dead ends: 528 [2021-11-02 22:52:56,465 INFO L226 Difference]: Without dead ends: 266 [2021-11-02 22:52:56,475 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:52:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-02 22:52:56,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-11-02 22:52:56,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 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) [2021-11-02 22:52:56,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-11-02 22:52:56,572 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 121 [2021-11-02 22:52:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:52:56,573 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-11-02 22:52:56,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-11-02 22:52:56,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-02 22:52:56,578 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:52:56,579 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:52:56,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:52:56,579 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:52:56,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:52:56,580 INFO L85 PathProgramCache]: Analyzing trace with hash 982355587, now seen corresponding path program 1 times [2021-11-02 22:52:56,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:52:56,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688263560] [2021-11-02 22:52:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:52:56,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:52:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:52:56,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:52:56,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:52:56,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688263560] [2021-11-02 22:52:56,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688263560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:52:56,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:52:56,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:52:56,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968007823] [2021-11-02 22:52:56,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:52:56,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:52:56,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:52:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:52:56,681 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:57,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:52:57,320 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2021-11-02 22:52:57,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:52:57,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 127 [2021-11-02 22:52:57,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:52:57,326 INFO L225 Difference]: With dead ends: 792 [2021-11-02 22:52:57,326 INFO L226 Difference]: Without dead ends: 528 [2021-11-02 22:52:57,328 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:52:57,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-11-02 22:52:57,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-11-02 22:52:57,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3453510436432639) internal successors, (709), 527 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:57,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2021-11-02 22:52:57,365 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 127 [2021-11-02 22:52:57,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:52:57,366 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2021-11-02 22:52:57,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:57,367 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2021-11-02 22:52:57,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-02 22:52:57,372 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:52:57,373 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:52:57,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:52:57,374 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:52:57,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:52:57,375 INFO L85 PathProgramCache]: Analyzing trace with hash -569986173, now seen corresponding path program 1 times [2021-11-02 22:52:57,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:52:57,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293352889] [2021-11-02 22:52:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:52:57,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:52:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:52:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:52:57,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:52:57,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293352889] [2021-11-02 22:52:57,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293352889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:52:57,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:52:57,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:52:57,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713542718] [2021-11-02 22:52:57,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:52:57,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:52:57,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:52:57,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:52:57,676 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:52:58,655 INFO L93 Difference]: Finished difference Result 1411 states and 1882 transitions. [2021-11-02 22:52:58,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:52:58,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2021-11-02 22:52:58,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:52:58,662 INFO L225 Difference]: With dead ends: 1411 [2021-11-02 22:52:58,663 INFO L226 Difference]: Without dead ends: 790 [2021-11-02 22:52:58,664 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:52:58,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-11-02 22:52:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2021-11-02 22:52:58,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.1634980988593155) internal successors, (918), 789 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:58,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 918 transitions. [2021-11-02 22:52:58,698 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 918 transitions. Word has length 128 [2021-11-02 22:52:58,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:52:58,699 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 918 transitions. [2021-11-02 22:52:58,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 918 transitions. [2021-11-02 22:52:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-02 22:52:58,703 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:52:58,704 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:52:58,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:52:58,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:52:58,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:52:58,705 INFO L85 PathProgramCache]: Analyzing trace with hash -866278320, now seen corresponding path program 1 times [2021-11-02 22:52:58,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:52:58,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250519169] [2021-11-02 22:52:58,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:52:58,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:52:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:52:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 22:52:58,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:52:58,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250519169] [2021-11-02 22:52:58,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250519169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:52:58,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:52:58,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:52:58,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476505892] [2021-11-02 22:52:58,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:52:58,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:52:58,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:52:58,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:52:58,810 INFO L87 Difference]: Start difference. First operand 790 states and 918 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:59,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:52:59,328 INFO L93 Difference]: Finished difference Result 1578 states and 1859 transitions. [2021-11-02 22:52:59,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:52:59,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 133 [2021-11-02 22:52:59,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:52:59,336 INFO L225 Difference]: With dead ends: 1578 [2021-11-02 22:52:59,336 INFO L226 Difference]: Without dead ends: 921 [2021-11-02 22:52:59,338 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:52:59,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-02 22:52:59,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-11-02 22:52:59,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.1532608695652173) internal successors, (1061), 920 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1061 transitions. [2021-11-02 22:52:59,370 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1061 transitions. Word has length 133 [2021-11-02 22:52:59,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:52:59,370 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1061 transitions. [2021-11-02 22:52:59,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:52:59,371 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1061 transitions. [2021-11-02 22:52:59,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-02 22:52:59,375 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:52:59,376 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:52:59,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:52:59,376 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:52:59,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:52:59,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1513060814, now seen corresponding path program 1 times [2021-11-02 22:52:59,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:52:59,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736567782] [2021-11-02 22:52:59,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:52:59,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:52:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:52:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-02 22:52:59,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:52:59,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736567782] [2021-11-02 22:52:59,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736567782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:52:59,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:52:59,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:52:59,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119407574] [2021-11-02 22:52:59,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:52:59,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:52:59,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:52:59,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:52:59,483 INFO L87 Difference]: Start difference. First operand 921 states and 1061 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:00,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:53:00,086 INFO L93 Difference]: Finished difference Result 2364 states and 2732 transitions. [2021-11-02 22:53:00,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:53:00,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 142 [2021-11-02 22:53:00,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:53:00,099 INFO L225 Difference]: With dead ends: 2364 [2021-11-02 22:53:00,099 INFO L226 Difference]: Without dead ends: 1576 [2021-11-02 22:53:00,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:53:00,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-11-02 22:53:00,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1183. [2021-11-02 22:53:00,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.1505922165820643) internal successors, (1360), 1182 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1360 transitions. [2021-11-02 22:53:00,148 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1360 transitions. Word has length 142 [2021-11-02 22:53:00,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:53:00,149 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1360 transitions. [2021-11-02 22:53:00,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:00,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1360 transitions. [2021-11-02 22:53:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-02 22:53:00,154 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:53:00,154 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:53:00,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 22:53:00,155 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:53:00,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:53:00,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1611413025, now seen corresponding path program 1 times [2021-11-02 22:53:00,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:53:00,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865235877] [2021-11-02 22:53:00,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:53:00,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:53:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:53:00,234 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 22:53:00,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:53:00,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865235877] [2021-11-02 22:53:00,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865235877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:53:00,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:53:00,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:53:00,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230958145] [2021-11-02 22:53:00,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:53:00,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:53:00,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:53:00,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:53:00,239 INFO L87 Difference]: Start difference. First operand 1183 states and 1360 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:00,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:53:00,782 INFO L93 Difference]: Finished difference Result 2626 states and 3028 transitions. [2021-11-02 22:53:00,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:53:00,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 148 [2021-11-02 22:53:00,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:53:00,799 INFO L225 Difference]: With dead ends: 2626 [2021-11-02 22:53:00,800 INFO L226 Difference]: Without dead ends: 1576 [2021-11-02 22:53:00,802 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:53:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-11-02 22:53:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-11-02 22:53:00,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.1412742382271468) internal successors, (1648), 1444 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:00,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1648 transitions. [2021-11-02 22:53:00,890 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1648 transitions. Word has length 148 [2021-11-02 22:53:00,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:53:00,892 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1648 transitions. [2021-11-02 22:53:00,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:00,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1648 transitions. [2021-11-02 22:53:00,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-02 22:53:00,898 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:53:00,899 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:53:00,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 22:53:00,899 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:53:00,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:53:00,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1437264732, now seen corresponding path program 1 times [2021-11-02 22:53:00,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:53:00,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526349967] [2021-11-02 22:53:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:53:00,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:53:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:53:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 22:53:01,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:53:01,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526349967] [2021-11-02 22:53:01,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526349967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:53:01,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:53:01,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:53:01,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070176415] [2021-11-02 22:53:01,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:53:01,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:53:01,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:53:01,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:53:01,068 INFO L87 Difference]: Start difference. First operand 1445 states and 1648 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:01,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:53:01,993 INFO L93 Difference]: Finished difference Result 3805 states and 4421 transitions. [2021-11-02 22:53:01,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:53:01,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 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 [2021-11-02 22:53:01,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:53:02,009 INFO L225 Difference]: With dead ends: 3805 [2021-11-02 22:53:02,009 INFO L226 Difference]: Without dead ends: 2231 [2021-11-02 22:53:02,015 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:53:02,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-11-02 22:53:02,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2021-11-02 22:53:02,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.127540650406504) internal successors, (2219), 1968 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:02,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2219 transitions. [2021-11-02 22:53:02,117 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2219 transitions. Word has length 162 [2021-11-02 22:53:02,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:53:02,118 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2219 transitions. [2021-11-02 22:53:02,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:02,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2219 transitions. [2021-11-02 22:53:02,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-02 22:53:02,126 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:53:02,127 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:53:02,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 22:53:02,127 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:53:02,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:53:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash -318034633, now seen corresponding path program 1 times [2021-11-02 22:53:02,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:53:02,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447391582] [2021-11-02 22:53:02,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:53:02,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:53:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:53:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 22:53:02,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:53:02,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447391582] [2021-11-02 22:53:02,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447391582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:53:02,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:53:02,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:53:02,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178347738] [2021-11-02 22:53:02,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:53:02,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:53:02,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:53:02,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:53:02,261 INFO L87 Difference]: Start difference. First operand 1969 states and 2219 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) 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) [2021-11-02 22:53:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:53:02,807 INFO L93 Difference]: Finished difference Result 4067 states and 4598 transitions. [2021-11-02 22:53:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:53:02,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) 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 168 [2021-11-02 22:53:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:53:02,822 INFO L225 Difference]: With dead ends: 4067 [2021-11-02 22:53:02,822 INFO L226 Difference]: Without dead ends: 2100 [2021-11-02 22:53:02,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:53:02,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-11-02 22:53:02,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2021-11-02 22:53:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.130589430894309) internal successors, (2225), 1968 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:02,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2225 transitions. [2021-11-02 22:53:02,896 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2225 transitions. Word has length 168 [2021-11-02 22:53:02,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:53:02,898 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2225 transitions. [2021-11-02 22:53:02,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) 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) [2021-11-02 22:53:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2225 transitions. [2021-11-02 22:53:02,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-02 22:53:02,905 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:53:02,905 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:53:02,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 22:53:02,906 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:53:02,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:53:02,907 INFO L85 PathProgramCache]: Analyzing trace with hash 199812148, now seen corresponding path program 1 times [2021-11-02 22:53:02,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:53:02,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343475374] [2021-11-02 22:53:02,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:53:02,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:53:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:53:03,049 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 60 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-02 22:53:03,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:53:03,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343475374] [2021-11-02 22:53:03,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343475374] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:53:03,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931139426] [2021-11-02 22:53:03,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:53:03,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:53:03,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:53:03,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:53:03,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 22:53:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:53:03,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:53:03,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:53:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-02 22:53:03,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931139426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:53:03,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:53:03,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-02 22:53:03,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845039444] [2021-11-02 22:53:03,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:53:03,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:53:03,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:53:03,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:53:03,990 INFO L87 Difference]: Start difference. First operand 1969 states and 2225 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:53:04,540 INFO L93 Difference]: Finished difference Result 4329 states and 4858 transitions. [2021-11-02 22:53:04,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:53:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 182 [2021-11-02 22:53:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:53:04,554 INFO L225 Difference]: With dead ends: 4329 [2021-11-02 22:53:04,555 INFO L226 Difference]: Without dead ends: 1969 [2021-11-02 22:53:04,559 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:53:04,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-11-02 22:53:04,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2021-11-02 22:53:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.0979858464888406) internal successors, (2017), 1837 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:04,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2017 transitions. [2021-11-02 22:53:04,623 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2017 transitions. Word has length 182 [2021-11-02 22:53:04,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:53:04,623 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2017 transitions. [2021-11-02 22:53:04,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:04,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2017 transitions. [2021-11-02 22:53:04,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-02 22:53:04,631 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:53:04,631 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:53:04,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:53:04,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-02 22:53:04,840 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:53:04,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:53:04,841 INFO L85 PathProgramCache]: Analyzing trace with hash -872916488, now seen corresponding path program 1 times [2021-11-02 22:53:04,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:53:04,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009892573] [2021-11-02 22:53:04,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:53:04,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:53:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:53:05,015 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 109 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:53:05,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:53:05,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009892573] [2021-11-02 22:53:05,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009892573] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:53:05,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936899348] [2021-11-02 22:53:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:53:05,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:53:05,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:53:05,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:53:05,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 22:53:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:53:05,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:53:05,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:53:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-02 22:53:05,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936899348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:53:05,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:53:05,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-02 22:53:05,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402477898] [2021-11-02 22:53:05,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:53:05,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:53:05,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:53:05,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:53:05,876 INFO L87 Difference]: Start difference. First operand 1838 states and 2017 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:06,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:53:06,528 INFO L93 Difference]: Finished difference Result 3672 states and 4048 transitions. [2021-11-02 22:53:06,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:53:06,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 201 [2021-11-02 22:53:06,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:53:06,545 INFO L225 Difference]: With dead ends: 3672 [2021-11-02 22:53:06,546 INFO L226 Difference]: Without dead ends: 0 [2021-11-02 22:53:06,549 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:53:06,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-02 22:53:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-02 22:53:06,550 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) [2021-11-02 22:53:06,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 22:53:06,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 201 [2021-11-02 22:53:06,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:53:06,551 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:53:06,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:53:06,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-02 22:53:06,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-02 22:53:06,563 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 22:53:06,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:53:06,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:53:06,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-02 22:53:06,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:53:06,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:53:06,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:53:07,160 INFO L857 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-11-02 22:53:07,161 INFO L857 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-11-02 22:53:07,161 INFO L857 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-11-02 22:53:07,161 INFO L857 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-11-02 22:53:07,161 INFO L857 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-11-02 22:53:07,161 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-11-02 22:53:07,162 INFO L857 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-11-02 22:53:07,162 INFO L857 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-11-02 22:53:07,162 INFO L857 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,162 INFO L857 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,162 INFO L857 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,162 INFO L857 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,163 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-11-02 22:53:07,163 INFO L857 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,163 INFO L857 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,164 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-11-02 22:53:07,164 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-11-02 22:53:07,164 INFO L857 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-11-02 22:53:07,164 INFO L857 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-11-02 22:53:07,164 INFO L857 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-11-02 22:53:07,165 INFO L857 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-11-02 22:53:07,165 INFO L857 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-11-02 22:53:07,165 INFO L857 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-11-02 22:53:07,167 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-11-02 22:53:07,167 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-11-02 22:53:07,167 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-11-02 22:53:07,170 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-11-02 22:53:07,170 INFO L857 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,170 INFO L857 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,170 INFO L857 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,170 INFO L857 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,170 INFO L857 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,171 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-11-02 22:53:07,171 INFO L857 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,171 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-11-02 22:53:07,171 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-11-02 22:53:07,171 INFO L857 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-11-02 22:53:07,171 INFO L857 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-11-02 22:53:07,172 INFO L857 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-11-02 22:53:07,172 INFO L857 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-11-02 22:53:07,172 INFO L857 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-11-02 22:53:07,172 INFO L857 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-11-02 22:53:07,172 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-11-02 22:53:07,172 INFO L857 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-11-02 22:53:07,173 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-11-02 22:53:07,173 INFO L857 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-11-02 22:53:07,173 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-11-02 22:53:07,173 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-11-02 22:53:07,173 INFO L857 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,173 INFO L857 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,174 INFO L857 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,174 INFO L857 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,174 INFO L857 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,174 INFO L857 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,174 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-11-02 22:53:07,174 INFO L857 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-11-02 22:53:07,175 INFO L857 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-11-02 22:53:07,175 INFO L857 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-11-02 22:53:07,175 INFO L857 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-11-02 22:53:07,175 INFO L857 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-11-02 22:53:07,175 INFO L857 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-11-02 22:53:07,175 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-11-02 22:53:07,175 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-11-02 22:53:07,176 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-11-02 22:53:07,176 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-11-02 22:53:07,176 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-11-02 22:53:07,176 INFO L857 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,176 INFO L857 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,176 INFO L857 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,177 INFO L857 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,177 INFO L857 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,177 INFO L857 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,177 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-11-02 22:53:07,177 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-11-02 22:53:07,177 INFO L857 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-11-02 22:53:07,178 INFO L857 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-11-02 22:53:07,178 INFO L857 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-11-02 22:53:07,178 INFO L857 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-11-02 22:53:07,178 INFO L857 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-11-02 22:53:07,178 INFO L857 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-11-02 22:53:07,178 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-11-02 22:53:07,178 INFO L857 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-11-02 22:53:07,179 INFO L857 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,179 INFO L857 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,179 INFO L857 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,179 INFO L857 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,179 INFO L857 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,179 INFO L857 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,180 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-11-02 22:53:07,180 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-11-02 22:53:07,180 INFO L857 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-11-02 22:53:07,180 INFO L857 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-11-02 22:53:07,180 INFO L857 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-11-02 22:53:07,180 INFO L857 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-11-02 22:53:07,181 INFO L857 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-11-02 22:53:07,181 INFO L857 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-11-02 22:53:07,181 INFO L857 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-11-02 22:53:07,181 INFO L857 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-11-02 22:53:07,186 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-11-02 22:53:07,186 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-11-02 22:53:07,186 INFO L857 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-11-02 22:53:07,186 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-11-02 22:53:07,187 INFO L857 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-11-02 22:53:07,187 INFO L857 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,187 INFO L857 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,187 INFO L857 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,187 INFO L857 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,187 INFO L857 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,187 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-02 22:53:07,188 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-11-02 22:53:07,189 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-11-02 22:53:07,189 INFO L857 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-11-02 22:53:07,189 INFO L857 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-11-02 22:53:07,189 INFO L857 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-11-02 22:53:07,190 INFO L857 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-11-02 22:53:07,190 INFO L857 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-11-02 22:53:07,190 INFO L857 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-11-02 22:53:07,190 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-11-02 22:53:07,191 INFO L853 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse5 (<= ~a8~0 13)) (.cse2 (<= 15 ~a8~0)) (.cse6 (<= ~a16~0 5)) (.cse7 (<= ~a17~0 0)) (.cse3 (= ~a12~0 8)) (.cse0 (= ~a21~0 1)) (.cse1 (= ~a17~0 1)) (.cse4 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 (<= 6 ~a16~0) .cse0 .cse1 .cse4) (and .cse5 .cse6) (and .cse5 .cse4) (and .cse7 .cse0 .cse2) (and .cse7 .cse0 .cse6) (and .cse7 .cse0 .cse4) (and .cse3 .cse0 .cse1 (<= ~a16~0 4) .cse4))) [2021-11-02 22:53:07,191 INFO L857 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,191 INFO L857 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,191 INFO L857 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,191 INFO L857 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,191 INFO L857 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,191 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-11-02 22:53:07,192 INFO L857 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-11-02 22:53:07,192 INFO L857 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-11-02 22:53:07,192 INFO L857 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-11-02 22:53:07,192 INFO L857 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-11-02 22:53:07,192 INFO L857 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-11-02 22:53:07,192 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-11-02 22:53:07,192 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-11-02 22:53:07,193 INFO L857 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-11-02 22:53:07,193 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-11-02 22:53:07,193 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-11-02 22:53:07,193 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-11-02 22:53:07,193 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-02 22:53:07,193 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-11-02 22:53:07,194 INFO L860 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-11-02 22:53:07,194 INFO L857 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,194 INFO L857 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,194 INFO L857 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,194 INFO L857 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,194 INFO L857 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,194 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-11-02 22:53:07,195 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-11-02 22:53:07,195 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-11-02 22:53:07,195 INFO L857 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-11-02 22:53:07,195 INFO L857 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-11-02 22:53:07,195 INFO L857 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-11-02 22:53:07,195 INFO L857 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-11-02 22:53:07,195 INFO L857 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-11-02 22:53:07,196 INFO L857 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-11-02 22:53:07,196 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-02 22:53:07,196 INFO L857 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,196 INFO L857 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,196 INFO L857 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,196 INFO L857 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,196 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-11-02 22:53:07,197 INFO L857 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,197 INFO L857 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-11-02 22:53:07,197 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-11-02 22:53:07,197 INFO L857 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-11-02 22:53:07,197 INFO L857 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-11-02 22:53:07,197 INFO L857 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-11-02 22:53:07,198 INFO L857 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-11-02 22:53:07,198 INFO L857 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-11-02 22:53:07,198 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-11-02 22:53:07,198 INFO L857 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-11-02 22:53:07,198 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-11-02 22:53:07,198 INFO L857 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-11-02 22:53:07,198 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-11-02 22:53:07,199 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-11-02 22:53:07,199 INFO L857 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,200 INFO L853 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse5 (<= ~a8~0 13)) (.cse2 (<= 15 ~a8~0)) (.cse6 (<= ~a16~0 5)) (.cse7 (<= ~a17~0 0)) (.cse3 (= ~a12~0 8)) (.cse0 (= ~a21~0 1)) (.cse1 (= ~a17~0 1)) (.cse4 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 (<= 6 ~a16~0) .cse0 .cse1 .cse4) (and .cse5 .cse6) (and .cse5 .cse4) (and .cse7 .cse0 .cse2) (and .cse7 .cse0 .cse6) (and .cse7 .cse0 .cse4) (and .cse3 .cse0 .cse1 (<= ~a16~0 4) .cse4))) [2021-11-02 22:53:07,200 INFO L857 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,201 INFO L857 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,201 INFO L857 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,201 INFO L857 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,201 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-11-02 22:53:07,201 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-02 22:53:07,201 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 549) no Hoare annotation was computed. [2021-11-02 22:53:07,202 INFO L857 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-11-02 22:53:07,202 INFO L857 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-11-02 22:53:07,202 INFO L857 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-11-02 22:53:07,202 INFO L857 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-11-02 22:53:07,202 INFO L857 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-11-02 22:53:07,202 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-11-02 22:53:07,202 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-11-02 22:53:07,203 INFO L857 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,203 INFO L857 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,203 INFO L857 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,203 INFO L857 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,203 INFO L857 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-11-02 22:53:07,203 INFO L857 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-11-02 22:53:07,203 INFO L857 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-11-02 22:53:07,204 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-11-02 22:53:07,204 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-11-02 22:53:07,208 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:53:07,210 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 22:53:07,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:53:07 BoogieIcfgContainer [2021-11-02 22:53:07,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 22:53:07,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:53:07,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:53:07,250 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:53:07,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:52:54" (3/4) ... [2021-11-02 22:53:07,255 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-02 22:53:07,297 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-02 22:53:07,298 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-02 22:53:07,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:53:07,302 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:53:07,438 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:53:07,438 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:53:07,440 INFO L168 Benchmark]: Toolchain (without parser) took 15846.93 ms. Allocated memory was 90.2 MB in the beginning and 169.9 MB in the end (delta: 79.7 MB). Free memory was 54.1 MB in the beginning and 85.2 MB in the end (delta: -31.1 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:53:07,441 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 63.3 MB in the beginning and 63.3 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:53:07,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 935.67 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.9 MB in the beginning and 68.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:53:07,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.00 ms. Allocated memory is still 109.1 MB. Free memory was 68.3 MB in the beginning and 62.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:53:07,442 INFO L168 Benchmark]: Boogie Preprocessor took 149.46 ms. Allocated memory is still 109.1 MB. Free memory was 62.7 MB in the beginning and 58.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:53:07,443 INFO L168 Benchmark]: RCFGBuilder took 1595.33 ms. Allocated memory is still 109.1 MB. Free memory was 58.5 MB in the beginning and 47.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:53:07,443 INFO L168 Benchmark]: TraceAbstraction took 12838.84 ms. Allocated memory was 109.1 MB in the beginning and 169.9 MB in the end (delta: 60.8 MB). Free memory was 47.4 MB in the beginning and 99.9 MB in the end (delta: -52.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:53:07,444 INFO L168 Benchmark]: Witness Printer took 188.84 ms. Allocated memory is still 169.9 MB. Free memory was 99.9 MB in the beginning and 85.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-02 22:53:07,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 63.3 MB in the beginning and 63.3 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 935.67 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.9 MB in the beginning and 68.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.00 ms. Allocated memory is still 109.1 MB. Free memory was 68.3 MB in the beginning and 62.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 149.46 ms. Allocated memory is still 109.1 MB. Free memory was 62.7 MB in the beginning and 58.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1595.33 ms. Allocated memory is still 109.1 MB. Free memory was 58.5 MB in the beginning and 47.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12838.84 ms. Allocated memory was 109.1 MB in the beginning and 169.9 MB in the end (delta: 60.8 MB). Free memory was 47.4 MB in the beginning and 99.9 MB in the end (delta: -52.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * Witness Printer took 188.84 ms. Allocated memory is still 169.9 MB. Free memory was 99.9 MB in the beginning and 85.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 549]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.7s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 812 SDtfs, 1120 SDslu, 62 SDs, 0 SdLazy, 3758 SolverSat, 562 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 409 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=7, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1048 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 45 NumberOfFragments, 175 HoareAnnotationTreeSize, 3 FomulaSimplifications, 900 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 138 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1895 NumberOfCodeBlocks, 1895 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1883 ConstructedInterpolants, 0 QuantifiedInterpolants, 5723 SizeOfPredicates, 0 NumberOfNonLiveVariables, 727 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 588/600 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: 593]: Loop Invariant Derived loop invariant: ((((((((a21 == 1 && a17 == 1) && 15 <= a8) || ((((a12 == 8 && 6 <= a16) && a21 == 1) && a17 == 1) && a20 == 1)) || (a8 <= 13 && a16 <= 5)) || (a8 <= 13 && a20 == 1)) || ((a17 <= 0 && a21 == 1) && 15 <= a8)) || ((a17 <= 0 && a21 == 1) && a16 <= 5)) || ((a17 <= 0 && a21 == 1) && a20 == 1)) || ((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 4) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((a21 == 1 && a17 == 1) && 15 <= a8) || ((((a12 == 8 && 6 <= a16) && a21 == 1) && a17 == 1) && a20 == 1)) || (a8 <= 13 && a16 <= 5)) || (a8 <= 13 && a20 == 1)) || ((a17 <= 0 && a21 == 1) && 15 <= a8)) || ((a17 <= 0 && a21 == 1) && a16 <= 5)) || ((a17 <= 0 && a21 == 1) && a20 == 1)) || ((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 4) && a20 == 1) RESULT: Ultimate proved your program to be correct! [2021-11-02 22:53:07,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffc77eb-fb3f-4c90-9b24-e038246a5a20/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE