./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test23-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test23-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD --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 6107b0424f9f7d96b4a493f3ee8e42c81c6509c50d1ec834cc7d1fa0b8a2c5d3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:16:10,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:16:10,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:16:10,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:16:10,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:16:10,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:16:10,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:16:10,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:16:10,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:16:10,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:16:10,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:16:10,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:16:10,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:16:10,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:16:10,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:16:10,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:16:10,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:16:10,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:16:10,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:16:10,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:16:10,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:16:10,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:16:10,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:16:10,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:16:10,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:16:10,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:16:10,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:16:10,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:16:10,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:16:10,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:16:10,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:16:10,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:16:10,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:16:10,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:16:10,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:16:10,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:16:10,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:16:10,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:16:10,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:16:10,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:16:10,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:16:10,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:16:11,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:16:11,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:16:11,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:16:11,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:16:11,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:16:11,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:16:11,026 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:16:11,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:16:11,027 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:16:11,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:16:11,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:16:11,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:16:11,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:16:11,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:16:11,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:16:11,030 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:16:11,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:16:11,030 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:16:11,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:16:11,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:16:11,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:16:11,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:16:11,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:16:11,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:16:11,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:16:11,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:16:11,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:16:11,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:16:11,033 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:16:11,034 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:16:11,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:16:11,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:16:11,035 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_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6107b0424f9f7d96b4a493f3ee8e42c81c6509c50d1ec834cc7d1fa0b8a2c5d3 [2021-10-28 23:16:11,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:16:11,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:16:11,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:16:11,420 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:16:11,421 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:16:11,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-regression/test23-2.c [2021-10-28 23:16:11,501 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/data/6f4edd8a0/a34e8d4b312d416fa4d1a7def026891f/FLAG03172121a [2021-10-28 23:16:12,036 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:16:12,037 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/sv-benchmarks/c/ldv-regression/test23-2.c [2021-10-28 23:16:12,045 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/data/6f4edd8a0/a34e8d4b312d416fa4d1a7def026891f/FLAG03172121a [2021-10-28 23:16:12,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/data/6f4edd8a0/a34e8d4b312d416fa4d1a7def026891f [2021-10-28 23:16:12,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:16:12,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:16:12,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:16:12,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:16:12,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:16:12,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19852ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12, skipping insertion in model container [2021-10-28 23:16:12,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:16:12,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:16:12,655 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_0f28588a-896c-4290-8dac-33eb2aa89e4a/sv-benchmarks/c/ldv-regression/test23-2.c[1070,1083] [2021-10-28 23:16:12,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:16:12,675 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:16:12,710 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_0f28588a-896c-4290-8dac-33eb2aa89e4a/sv-benchmarks/c/ldv-regression/test23-2.c[1070,1083] [2021-10-28 23:16:12,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:16:12,735 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:16:12,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12 WrapperNode [2021-10-28 23:16:12,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:16:12,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:16:12,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:16:12,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:16:12,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:16:12,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:16:12,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:16:12,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:16:12,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:16:12,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:16:12,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:16:12,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:16:12,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (1/1) ... [2021-10-28 23:16:12,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:16:12,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:12,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:16:12,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:16:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:16:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:16:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:16:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:16:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:16:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:16:13,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:16:13,271 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-28 23:16:13,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:13 BoogieIcfgContainer [2021-10-28 23:16:13,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:16:13,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:16:13,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:16:13,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:16:13,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:16:12" (1/3) ... [2021-10-28 23:16:13,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb2cc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:16:13, skipping insertion in model container [2021-10-28 23:16:13,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:12" (2/3) ... [2021-10-28 23:16:13,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb2cc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:16:13, skipping insertion in model container [2021-10-28 23:16:13,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:13" (3/3) ... [2021-10-28 23:16:13,286 INFO L111 eAbstractionObserver]: Analyzing ICFG test23-2.c [2021-10-28 23:16:13,291 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:16:13,292 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:16:13,354 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:16:13,365 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 [2021-10-28 23:16:13,365 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:16:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:16:13,387 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:13,388 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:13,389 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:13,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:13,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2100293056, now seen corresponding path program 1 times [2021-10-28 23:16:13,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:13,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44809042] [2021-10-28 23:16:13,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:13,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:13,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:13,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44809042] [2021-10-28 23:16:13,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44809042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:16:13,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:16:13,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:16:13,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775290868] [2021-10-28 23:16:13,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:16:13,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:13,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:16:13,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:16:13,684 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:13,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:13,698 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-10-28 23:16:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:16:13,700 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2021-10-28 23:16:13,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:13,708 INFO L225 Difference]: With dead ends: 30 [2021-10-28 23:16:13,708 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 23:16:13,711 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:16:13,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 23:16:13,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 23:16:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-10-28 23:16:13,776 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 15 [2021-10-28 23:16:13,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:13,799 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 23:16:13,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:13,800 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-10-28 23:16:13,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:16:13,800 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:13,801 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:13,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:16:13,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:13,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:13,802 INFO L85 PathProgramCache]: Analyzing trace with hash 478567452, now seen corresponding path program 1 times [2021-10-28 23:16:13,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:13,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621251633] [2021-10-28 23:16:13,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:13,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:14,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:14,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621251633] [2021-10-28 23:16:14,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621251633] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:16:14,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:16:14,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:16:14,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682230423] [2021-10-28 23:16:14,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:16:14,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:14,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:16:14,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:16:14,292 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:14,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:14,765 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2021-10-28 23:16:14,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:16:14,773 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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 16 [2021-10-28 23:16:14,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:14,774 INFO L225 Difference]: With dead ends: 59 [2021-10-28 23:16:14,775 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 23:16:14,776 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:16:14,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 23:16:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 25. [2021-10-28 23:16:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2021-10-28 23:16:14,785 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2021-10-28 23:16:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:14,785 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-10-28 23:16:14,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2021-10-28 23:16:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:16:14,786 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:14,786 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:14,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:16:14,787 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:14,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:14,797 INFO L85 PathProgramCache]: Analyzing trace with hash -108238562, now seen corresponding path program 1 times [2021-10-28 23:16:14,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:14,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790377475] [2021-10-28 23:16:14,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:14,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:14,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:14,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:14,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790377475] [2021-10-28 23:16:14,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790377475] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:16:14,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:16:14,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:16:14,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508462699] [2021-10-28 23:16:14,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:16:14,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:14,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:16:14,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:16:14,945 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:15,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:15,164 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-10-28 23:16:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:16:15,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 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 16 [2021-10-28 23:16:15,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:15,173 INFO L225 Difference]: With dead ends: 54 [2021-10-28 23:16:15,173 INFO L226 Difference]: Without dead ends: 44 [2021-10-28 23:16:15,174 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:16:15,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-28 23:16:15,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 25. [2021-10-28 23:16:15,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:15,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-10-28 23:16:15,182 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16 [2021-10-28 23:16:15,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:15,182 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-10-28 23:16:15,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-10-28 23:16:15,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:16:15,183 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:15,183 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:15,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:16:15,184 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:15,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:15,185 INFO L85 PathProgramCache]: Analyzing trace with hash -501265572, now seen corresponding path program 1 times [2021-10-28 23:16:15,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:15,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052304423] [2021-10-28 23:16:15,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:15,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:15,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:15,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052304423] [2021-10-28 23:16:15,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052304423] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:16:15,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:16:15,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 23:16:15,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966160797] [2021-10-28 23:16:15,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:16:15,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:15,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:16:15,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:16:15,449 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:15,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:15,729 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2021-10-28 23:16:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:16:15,731 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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 16 [2021-10-28 23:16:15,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:15,734 INFO L225 Difference]: With dead ends: 51 [2021-10-28 23:16:15,735 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 23:16:15,736 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:16:15,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 23:16:15,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 22. [2021-10-28 23:16:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-10-28 23:16:15,747 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 16 [2021-10-28 23:16:15,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:15,749 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-10-28 23:16:15,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:15,749 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-10-28 23:16:15,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:16:15,750 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:15,751 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:15,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:16:15,751 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:15,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1851619425, now seen corresponding path program 1 times [2021-10-28 23:16:15,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:15,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255842534] [2021-10-28 23:16:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:15,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:15,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:15,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255842534] [2021-10-28 23:16:15,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255842534] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:15,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249130096] [2021-10-28 23:16:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:15,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:16:15,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:15,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:16:16,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:16:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:16,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 23:16:16,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:16,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 76 [2021-10-28 23:16:16,846 INFO L354 Elim1Store]: treesize reduction 19, result has 13.6 percent of original size [2021-10-28 23:16:16,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 41 [2021-10-28 23:16:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:16,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249130096] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:16,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:16:16,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2021-10-28 23:16:16,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643524211] [2021-10-28 23:16:16,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:16:16,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:16,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:16:16,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:16:16,881 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:17,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:17,856 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2021-10-28 23:16:17,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:16:17,858 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 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 18 [2021-10-28 23:16:17,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:17,859 INFO L225 Difference]: With dead ends: 57 [2021-10-28 23:16:17,859 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 23:16:17,860 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=276, Invalid=1056, Unknown=0, NotChecked=0, Total=1332 [2021-10-28 23:16:17,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 23:16:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 24. [2021-10-28 23:16:17,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:17,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2021-10-28 23:16:17,869 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 18 [2021-10-28 23:16:17,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:17,869 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-10-28 23:16:17,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:17,870 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2021-10-28 23:16:17,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:16:17,871 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:17,872 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:17,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 23:16:18,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:16:18,099 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:18,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:18,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1495361690, now seen corresponding path program 2 times [2021-10-28 23:16:18,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:18,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706401238] [2021-10-28 23:16:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:18,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:18,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:18,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:18,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706401238] [2021-10-28 23:16:18,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706401238] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:18,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378941441] [2021-10-28 23:16:18,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:16:18,367 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:16:18,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:18,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:16:18,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:16:18,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:16:18,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:16:18,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-28 23:16:18,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:18,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2021-10-28 23:16:19,353 INFO L354 Elim1Store]: treesize reduction 54, result has 11.5 percent of original size [2021-10-28 23:16:19,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 49 [2021-10-28 23:16:19,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:19,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378941441] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:19,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:16:19,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2021-10-28 23:16:19,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579082609] [2021-10-28 23:16:19,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 23:16:19,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:19,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 23:16:19,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:16:19,397 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:20,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:20,755 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2021-10-28 23:16:20,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 23:16:20,756 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 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 20 [2021-10-28 23:16:20,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:20,757 INFO L225 Difference]: With dead ends: 63 [2021-10-28 23:16:20,757 INFO L226 Difference]: Without dead ends: 58 [2021-10-28 23:16:20,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=429, Invalid=1641, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 23:16:20,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-28 23:16:20,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 26. [2021-10-28 23:16:20,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:20,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-10-28 23:16:20,766 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 20 [2021-10-28 23:16:20,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:20,766 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-10-28 23:16:20,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:20,767 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-10-28 23:16:20,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:16:20,768 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:20,768 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:20,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:20,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 23:16:20,992 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:20,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:20,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1013708501, now seen corresponding path program 3 times [2021-10-28 23:16:20,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:20,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341318140] [2021-10-28 23:16:20,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:20,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:21,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:21,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341318140] [2021-10-28 23:16:21,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341318140] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:21,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743901052] [2021-10-28 23:16:21,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:16:21,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:16:21,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:21,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:16:21,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:16:21,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 23:16:21,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:16:21,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-28 23:16:21,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:21,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2021-10-28 23:16:22,209 INFO L354 Elim1Store]: treesize reduction 56, result has 11.1 percent of original size [2021-10-28 23:16:22,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 60 [2021-10-28 23:16:22,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:16:22,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743901052] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:22,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:16:22,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-10-28 23:16:22,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871153103] [2021-10-28 23:16:22,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-28 23:16:22,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:22,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-28 23:16:22,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:16:22,302 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 28 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:25,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:25,783 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2021-10-28 23:16:25,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-28 23:16:25,783 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 27 states have internal predecessors, (38), 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 22 [2021-10-28 23:16:25,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:25,784 INFO L225 Difference]: With dead ends: 65 [2021-10-28 23:16:25,784 INFO L226 Difference]: Without dead ends: 25 [2021-10-28 23:16:25,786 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 890 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=768, Invalid=3392, Unknown=0, NotChecked=0, Total=4160 [2021-10-28 23:16:25,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-28 23:16:25,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-10-28 23:16:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:25,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-10-28 23:16:25,792 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 22 [2021-10-28 23:16:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:25,792 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-10-28 23:16:25,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:25,793 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-10-28 23:16:25,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:16:25,794 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:25,794 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:25,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-28 23:16:25,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:16:26,000 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:26,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:26,000 INFO L85 PathProgramCache]: Analyzing trace with hash 722062576, now seen corresponding path program 1 times [2021-10-28 23:16:26,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:26,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303003787] [2021-10-28 23:16:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:26,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:26,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:26,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303003787] [2021-10-28 23:16:26,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303003787] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:26,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137335493] [2021-10-28 23:16:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:26,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:16:26,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:26,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:16:26,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:16:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:26,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 23:16:26,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:26,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-28 23:16:26,826 INFO L354 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2021-10-28 23:16:26,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 30 [2021-10-28 23:16:26,843 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:26,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137335493] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:26,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:16:26,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 20 [2021-10-28 23:16:26,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75054310] [2021-10-28 23:16:26,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:16:26,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:26,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:16:26,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:16:26,847 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 20 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:27,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:27,505 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2021-10-28 23:16:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:16:27,506 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 20 states have internal predecessors, (34), 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 24 [2021-10-28 23:16:27,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:27,506 INFO L225 Difference]: With dead ends: 32 [2021-10-28 23:16:27,507 INFO L226 Difference]: Without dead ends: 27 [2021-10-28 23:16:27,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:16:27,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-28 23:16:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-28 23:16:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-10-28 23:16:27,514 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 24 [2021-10-28 23:16:27,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:27,514 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-10-28 23:16:27,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 20 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-10-28 23:16:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:16:27,516 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:27,516 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:27,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:27,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:16:27,724 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash -372767691, now seen corresponding path program 2 times [2021-10-28 23:16:27,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:27,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22623622] [2021-10-28 23:16:27,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:27,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:28,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:28,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22623622] [2021-10-28 23:16:28,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22623622] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:28,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359845483] [2021-10-28 23:16:28,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:16:28,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:16:28,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:28,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:16:28,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:16:28,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:16:28,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:16:28,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-28 23:16:28,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:28,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-10-28 23:16:28,748 INFO L354 Elim1Store]: treesize reduction 68, result has 9.3 percent of original size [2021-10-28 23:16:28,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 30 [2021-10-28 23:16:28,775 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:28,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359845483] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:28,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:16:28,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 23 [2021-10-28 23:16:28,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052322404] [2021-10-28 23:16:28,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 23:16:28,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:28,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 23:16:28,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:16:28,778 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 24 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:29,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:29,569 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-10-28 23:16:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 23:16:29,570 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 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 26 [2021-10-28 23:16:29,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:29,571 INFO L225 Difference]: With dead ends: 34 [2021-10-28 23:16:29,571 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 23:16:29,572 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=381, Invalid=1101, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 23:16:29,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 23:16:29,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 23:16:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:29,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-28 23:16:29,579 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 26 [2021-10-28 23:16:29,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:29,579 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-28 23:16:29,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:29,580 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-28 23:16:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:16:29,580 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:16:29,581 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:16:29,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:29,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-28 23:16:29,798 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:16:29,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:16:29,799 INFO L85 PathProgramCache]: Analyzing trace with hash -237666758, now seen corresponding path program 3 times [2021-10-28 23:16:29,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:16:29,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213441545] [2021-10-28 23:16:29,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:16:29,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:16:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:16:30,121 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:16:30,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:16:30,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213441545] [2021-10-28 23:16:30,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213441545] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:30,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795963624] [2021-10-28 23:16:30,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:16:30,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:16:30,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:16:30,123 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:16:30,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:16:30,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 23:16:30,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:16:30,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-28 23:16:30,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:16:30,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-10-28 23:16:30,946 INFO L354 Elim1Store]: treesize reduction 48, result has 12.7 percent of original size [2021-10-28 23:16:30,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 46 [2021-10-28 23:16:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-28 23:16:31,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795963624] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:16:31,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:16:31,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 24 [2021-10-28 23:16:31,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413334416] [2021-10-28 23:16:31,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 23:16:31,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:16:31,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 23:16:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:16:31,008 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 25 states, 25 states have (on average 1.52) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:32,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:16:32,828 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2021-10-28 23:16:32,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 23:16:32,829 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.52) internal successors, (38), 24 states have internal predecessors, (38), 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 28 [2021-10-28 23:16:32,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:16:32,830 INFO L225 Difference]: With dead ends: 34 [2021-10-28 23:16:32,831 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:16:32,834 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 23:16:32,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:16:32,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:16:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:16:32,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-10-28 23:16:32,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:16:32,836 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:16:32,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.52) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:16:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:16:32,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:16:32,843 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:16:32,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:16:33,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 23:16:33,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:16:33,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:16:33,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:16:33,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:16:33,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:16:33,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:16:33,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:16:34,263 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:16:34,263 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:16:34,263 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:16:34,263 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2021-10-28 23:16:34,264 INFO L860 garLoopResultBuilder]: At program point L53(lines 33 54) the Hoare annotation is: true [2021-10-28 23:16:34,264 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-10-28 23:16:34,264 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:16:34,264 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-10-28 23:16:34,264 INFO L857 garLoopResultBuilder]: For program point L25-2(line 25) no Hoare annotation was computed. [2021-10-28 23:16:34,265 INFO L853 garLoopResultBuilder]: At program point L25-3(lines 23 26) the Hoare annotation is: (let ((.cse0 (not (= |~#d1~0.base| |~#d2~0.base|))) (.cse1 (= |~#d2~0.offset| 0)) (.cse2 (= |~#d1~0.offset| 0)) (.cse3 (= |ULTIMATE.start_get_dummy_#res.offset| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_get_dummy_#res.base| |~#d2~0.base|) .cse2 .cse3) (and .cse0 .cse1 .cse2 (= |~#d1~0.base| |ULTIMATE.start_get_dummy_#res.base|) .cse3))) [2021-10-28 23:16:34,265 INFO L857 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2021-10-28 23:16:34,265 INFO L857 garLoopResultBuilder]: For program point L25-6(line 25) no Hoare annotation was computed. [2021-10-28 23:16:34,265 INFO L853 garLoopResultBuilder]: At program point L25-7(lines 23 26) the Hoare annotation is: (let ((.cse0 (not (= |~#d1~0.base| |~#d2~0.base|))) (.cse1 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|)) (.cse2 (= |~#d1~0.offset| 0))) (or (and .cse0 (not .cse1) (not (= ULTIMATE.start_main_~pd1~0.base |ULTIMATE.start_get_dummy_#res.base|)) .cse2) (and (let ((.cse3 (= |~#d2~0.offset| 0))) (or (and .cse3 (= |ULTIMATE.start_get_dummy_#res.base| |~#d2~0.base|) (not (= |~#d1~0.base| |ULTIMATE.start_get_dummy_#res.base|)) (= |ULTIMATE.start_get_dummy_#res.offset| 0)) (and .cse0 .cse3 .cse1))) .cse2 (= ULTIMATE.start_main_~pd1~0.offset 0)))) [2021-10-28 23:16:34,265 INFO L853 garLoopResultBuilder]: At program point L46(lines 34 54) the Hoare annotation is: false [2021-10-28 23:16:34,266 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 42 44) no Hoare annotation was computed. [2021-10-28 23:16:34,266 INFO L853 garLoopResultBuilder]: At program point L42-3(lines 42 44) the Hoare annotation is: (let ((.cse0 (not (= |~#d1~0.base| |~#d2~0.base|))) (.cse1 (= |~#d2~0.offset| 0)) (.cse2 (= ULTIMATE.start_main_~pd2~0.base ULTIMATE.start_main_~pa~0.base)) (.cse4 (= ULTIMATE.start_main_~pd2~0.offset 0)) (.cse5 (= |~#d1~0.offset| 0)) (.cse6 (= ULTIMATE.start_main_~pd1~0.base ULTIMATE.start_main_~pd2~0.base)) (.cse7 (= ULTIMATE.start_main_~pd1~0.offset 0)) (.cse8 (< ULTIMATE.start_main_~i~0 (+ (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset) 1)))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_get_dummy_#res.base| |~#d2~0.base|) (= ULTIMATE.start_main_~pd1~0.base |ULTIMATE.start_get_dummy_#res.base|) (= (mod (* ULTIMATE.start_main_~pa~0.offset 3) (- 4)) 0) (let ((.cse3 (div (+ (* ULTIMATE.start_main_~pa~0.offset (- 1)) 8) (- 4)))) (= .cse3 (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) (+ (* .cse3 4) ULTIMATE.start_main_~pd2~0.offset 8)))) .cse4 .cse5 .cse6 (= |ULTIMATE.start_get_dummy_#res.offset| 0) .cse7 .cse8) (and .cse0 .cse1 .cse2 (exists ((aux_div_ULTIMATE.start_main_~pd1~0.offset_88 Int)) (let ((.cse9 (* 3 ULTIMATE.start_main_~pa~0.offset)) (.cse10 (* 4 aux_div_ULTIMATE.start_main_~pd1~0.offset_88))) (and (= (+ aux_div_ULTIMATE.start_main_~pd1~0.offset_88 ULTIMATE.start_main_~pa~0.offset) (+ (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) (+ (* (div (+ (* aux_div_ULTIMATE.start_main_~pd1~0.offset_88 (- 4)) 8 (* ULTIMATE.start_main_~pa~0.offset (- 4))) (- 4)) 4) ULTIMATE.start_main_~pd2~0.offset 8)) 2)) (<= (+ .cse9 .cse10 ULTIMATE.start_main_~pd2~0.offset) 0) (<= 0 (+ .cse9 .cse10))))) .cse4 .cse5 .cse6 .cse7 .cse8 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|)))) [2021-10-28 23:16:34,266 INFO L857 garLoopResultBuilder]: For program point L38(lines 38 48) no Hoare annotation was computed. [2021-10-28 23:16:34,266 INFO L857 garLoopResultBuilder]: For program point L42-4(lines 42 44) no Hoare annotation was computed. [2021-10-28 23:16:34,266 INFO L857 garLoopResultBuilder]: For program point L38-2(lines 38 48) no Hoare annotation was computed. [2021-10-28 23:16:34,267 INFO L853 garLoopResultBuilder]: At program point L30(lines 28 31) the Hoare annotation is: (let ((.cse0 (not (= |~#d1~0.base| |~#d2~0.base|))) (.cse5 (= |~#d2~0.offset| 0)) (.cse6 (= ULTIMATE.start_main_~pd2~0.base ULTIMATE.start_main_~pa~0.base)) (.cse7 (<= 1 |ULTIMATE.start_check_#res|)) (.cse9 (= ULTIMATE.start_main_~pd2~0.offset 0)) (.cse10 (= |~#d1~0.offset| 0)) (.cse11 (= ULTIMATE.start_main_~pd1~0.base ULTIMATE.start_main_~pd2~0.base)) (.cse12 (= ULTIMATE.start_main_~pd1~0.offset 0)) (.cse13 (< ULTIMATE.start_main_~i~0 (+ (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset) 1)))) (or (and .cse0 (exists ((aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 Int) (aux_div_ULTIMATE.start_main_~pa~0.offset_60 Int)) (let ((.cse2 (select |#memory_int| ULTIMATE.start_main_~pd2~0.base)) (.cse3 (* aux_div_ULTIMATE.start_main_~pa~0.offset_60 4))) (let ((.cse1 (select .cse2 (+ (* aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 4) 8 .cse3))) (.cse4 (* 4 aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55))) (and (<= .cse1 ULTIMATE.start_main_~i~0) (< ULTIMATE.start_main_~i~0 (+ .cse1 1)) (= (select .cse2 (+ ULTIMATE.start_main_~pd2~0.offset 8 .cse3)) aux_div_ULTIMATE.start_main_~pa~0.offset_60) (< 0 (+ .cse4 4)) (<= .cse4 0))))) .cse5 .cse6 (= |ULTIMATE.start_get_dummy_#res.base| |~#d2~0.base|) (= ULTIMATE.start_main_~pd1~0.base |ULTIMATE.start_get_dummy_#res.base|) (= (mod (* ULTIMATE.start_main_~pa~0.offset 3) (- 4)) 0) .cse7 (let ((.cse8 (div (+ (* ULTIMATE.start_main_~pa~0.offset (- 1)) 8) (- 4)))) (= .cse8 (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) (+ (* .cse8 4) ULTIMATE.start_main_~pd2~0.offset 8)))) .cse9 .cse10 .cse11 (= |ULTIMATE.start_get_dummy_#res.offset| 0) .cse12 .cse13) (and .cse0 .cse5 .cse6 (exists ((aux_div_ULTIMATE.start_main_~pd1~0.offset_88 Int)) (let ((.cse14 (* 3 ULTIMATE.start_main_~pa~0.offset)) (.cse15 (* 4 aux_div_ULTIMATE.start_main_~pd1~0.offset_88))) (and (= (+ aux_div_ULTIMATE.start_main_~pd1~0.offset_88 ULTIMATE.start_main_~pa~0.offset) (+ (select (select |#memory_int| ULTIMATE.start_main_~pd2~0.base) (+ (* (div (+ (* aux_div_ULTIMATE.start_main_~pd1~0.offset_88 (- 4)) 8 (* ULTIMATE.start_main_~pa~0.offset (- 4))) (- 4)) 4) ULTIMATE.start_main_~pd2~0.offset 8)) 2)) (<= (+ .cse14 .cse15 ULTIMATE.start_main_~pd2~0.offset) 0) (<= 0 (+ .cse14 .cse15))))) .cse7 (exists ((ULTIMATE.start_main_~pa~0.offset Int) (aux_div_ULTIMATE.start_main_~pd1~0.offset_88 Int)) (let ((.cse16 (select |#memory_int| ULTIMATE.start_main_~pd2~0.base))) (let ((.cse19 (select .cse16 ULTIMATE.start_main_~pa~0.offset)) (.cse17 (* 3 ULTIMATE.start_main_~pa~0.offset)) (.cse18 (* 4 aux_div_ULTIMATE.start_main_~pd1~0.offset_88))) (and (= (+ aux_div_ULTIMATE.start_main_~pd1~0.offset_88 ULTIMATE.start_main_~pa~0.offset) (+ (select .cse16 (+ (* (div (+ (* aux_div_ULTIMATE.start_main_~pd1~0.offset_88 (- 4)) 8 (* ULTIMATE.start_main_~pa~0.offset (- 4))) (- 4)) 4) ULTIMATE.start_main_~pd2~0.offset 8)) 2)) (<= (+ .cse17 .cse18 ULTIMATE.start_main_~pd2~0.offset) 0) (< ULTIMATE.start_main_~i~0 (+ .cse19 1)) (<= .cse19 ULTIMATE.start_main_~i~0) (<= 0 (+ .cse17 .cse18)))))) .cse9 .cse10 .cse11 .cse12 .cse13 (= ULTIMATE.start_main_~pd1~0.base |~#d1~0.base|)))) [2021-10-28 23:16:34,267 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 21) no Hoare annotation was computed. [2021-10-28 23:16:34,271 INFO L731 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1] [2021-10-28 23:16:34,272 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:16:34,290 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,291 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,297 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,297 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,297 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,297 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,301 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,301 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,301 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,302 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,302 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,302 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,302 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,303 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,303 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,307 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,311 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,311 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:16:34 BoogieIcfgContainer [2021-10-28 23:16:34,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:16:34,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:16:34,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:16:34,318 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:16:34,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:13" (3/4) ... [2021-10-28 23:16:34,322 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:16:34,334 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 23:16:34,334 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-28 23:16:34,335 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:16:34,335 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:16:34,364 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(d1 == d2) && d2 == 0) && \result == d2) && d1 == 0) && \result == 0) || ((((!(d1 == d2) && d2 == 0) && d1 == 0) && d1 == \result) && \result == 0) [2021-10-28 23:16:34,365 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(d1 == d2) && !(pd1 == d1)) && !(pd1 == \result)) && d1 == 0) || ((((((d2 == 0 && \result == d2) && !(d1 == \result)) && \result == 0) || ((!(d1 == d2) && d2 == 0) && pd1 == d1)) && d1 == 0) && pd1 == 0) [2021-10-28 23:16:34,365 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((!(d1 == d2) && d2 == 0) && pd2 == pa) && \result == d2) && pd1 == \result) && pa * 3 % -4 == 0) && (pa * -1 + 8) / -4 == unknown-#memory_int-unknown[pd2][(pa * -1 + 8) / -4 * 4 + pd2 + 8]) && pd2 == 0) && d1 == 0) && pd1 == pd2) && \result == 0) && pd1 == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1) || (((((((((!(d1 == d2) && d2 == 0) && pd2 == pa) && (\exists aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pa == unknown-#memory_int-unknown[pd2][(aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8 + pa * -4) / -4 * 4 + pd2 + 8] + 2 && 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pd2 <= 0) && 0 <= 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && pd2 == 0) && d1 == 0) && pd1 == pd2) && pd1 == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1) && pd1 == d1) [2021-10-28 23:16:34,365 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((!(d1 == d2) && (\exists aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 : int, aux_div_ULTIMATE.start_main_~pa~0.offset_60 : int :: (((unknown-#memory_int-unknown[pd2][aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 * 4 + 8 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4] <= i && i < unknown-#memory_int-unknown[pd2][aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 * 4 + 8 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4] + 1) && unknown-#memory_int-unknown[pd2][pd2 + 8 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4] == aux_div_ULTIMATE.start_main_~pa~0.offset_60) && 0 < 4 * aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 + 4) && 4 * aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 <= 0)) && d2 == 0) && pd2 == pa) && \result == d2) && pd1 == \result) && pa * 3 % -4 == 0) && 1 <= \result) && (pa * -1 + 8) / -4 == unknown-#memory_int-unknown[pd2][(pa * -1 + 8) / -4 * 4 + pd2 + 8]) && pd2 == 0) && d1 == 0) && pd1 == pd2) && \result == 0) && pd1 == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1) || (((((((((((!(d1 == d2) && d2 == 0) && pd2 == pa) && (\exists aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pa == unknown-#memory_int-unknown[pd2][(aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8 + pa * -4) / -4 * 4 + pd2 + 8] + 2 && 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pd2 <= 0) && 0 <= 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && 1 <= \result) && (\exists ULTIMATE.start_main_~pa~0.offset : int, aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (((aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + ULTIMATE.start_main_~pa~0.offset == unknown-#memory_int-unknown[pd2][(aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8 + ULTIMATE.start_main_~pa~0.offset * -4) / -4 * 4 + pd2 + 8] + 2 && 3 * ULTIMATE.start_main_~pa~0.offset + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pd2 <= 0) && i < unknown-#memory_int-unknown[pd2][ULTIMATE.start_main_~pa~0.offset] + 1) && unknown-#memory_int-unknown[pd2][ULTIMATE.start_main_~pa~0.offset] <= i) && 0 <= 3 * ULTIMATE.start_main_~pa~0.offset + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && pd2 == 0) && d1 == 0) && pd1 == pd2) && pd1 == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1) && pd1 == d1) [2021-10-28 23:16:34,378 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:16:34,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:16:34,379 INFO L168 Benchmark]: Toolchain (without parser) took 21990.82 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 58.7 MB in the beginning and 142.5 MB in the end (delta: -83.8 MB). Peak memory consumption was 89.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:34,379 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 32.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:16:34,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.48 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 68.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:34,380 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.25 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 66.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:16:34,381 INFO L168 Benchmark]: Boogie Preprocessor took 52.70 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 65.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:34,381 INFO L168 Benchmark]: RCFGBuilder took 415.33 ms. Allocated memory is still 92.3 MB. Free memory was 65.3 MB in the beginning and 53.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:34,382 INFO L168 Benchmark]: TraceAbstraction took 21041.97 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 53.1 MB in the beginning and 46.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 86.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:34,382 INFO L168 Benchmark]: Witness Printer took 60.33 ms. Allocated memory is still 167.8 MB. Free memory was 46.7 MB in the beginning and 142.5 MB in the end (delta: -95.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:16:34,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 32.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.48 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 68.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.25 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 66.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.70 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 65.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 415.33 ms. Allocated memory is still 92.3 MB. Free memory was 65.3 MB in the beginning and 53.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21041.97 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 53.1 MB in the beginning and 46.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 86.1 MB. Max. memory is 16.1 GB. * Witness Printer took 60.33 ms. Allocated memory is still 167.8 MB. Free memory was 46.7 MB in the beginning and 142.5 MB in the end (delta: -95.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] * 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: 52]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.9s, OverallIterations: 10, TraceHistogramMax: 7, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 120 SDtfs, 768 SDslu, 659 SDs, 0 SdLazy, 1420 SolverSat, 272 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2418 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=9, InterpolantAutomatonStates: 199, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 132 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 32 NumberOfFragments, 519 HoareAnnotationTreeSize, 6 FomulaSimplifications, 116882 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7632 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 339 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 323 ConstructedInterpolants, 19 QuantifiedInterpolants, 4465 SizeOfPredicates, 79 NumberOfNonLiveVariables, 818 ConjunctsInSsa, 255 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 45/224 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: 23]: Loop Invariant Derived loop invariant: (((!(d1 == d2) && !(pd1 == d1)) && !(pd1 == \result)) && d1 == 0) || ((((((d2 == 0 && \result == d2) && !(d1 == \result)) && \result == 0) || ((!(d1 == d2) && d2 == 0) && pd1 == d1)) && d1 == 0) && pd1 == 0) - InvariantResult [Line: 28]: Loop Invariant [2021-10-28 23:16:34,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,402 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,405 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,405 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,405 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,405 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pa~0.offset_60,QUANTIFIED] [2021-10-28 23:16:34,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55,QUANTIFIED] [2021-10-28 23:16:34,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~pa~0.offset,QUANTIFIED] [2021-10-28 23:16:34,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] Derived loop invariant: ((((((((((((((!(d1 == d2) && (\exists aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 : int, aux_div_ULTIMATE.start_main_~pa~0.offset_60 : int :: (((unknown-#memory_int-unknown[pd2][aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 * 4 + 8 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4] <= i && i < unknown-#memory_int-unknown[pd2][aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 * 4 + 8 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4] + 1) && unknown-#memory_int-unknown[pd2][pd2 + 8 + aux_div_ULTIMATE.start_main_~pa~0.offset_60 * 4] == aux_div_ULTIMATE.start_main_~pa~0.offset_60) && 0 < 4 * aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 + 4) && 4 * aux_div_aux_mod_ULTIMATE.start_main_~pa~0.offset_60_55 <= 0)) && d2 == 0) && pd2 == pa) && \result == d2) && pd1 == \result) && pa * 3 % -4 == 0) && 1 <= \result) && (pa * -1 + 8) / -4 == unknown-#memory_int-unknown[pd2][(pa * -1 + 8) / -4 * 4 + pd2 + 8]) && pd2 == 0) && d1 == 0) && pd1 == pd2) && \result == 0) && pd1 == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1) || (((((((((((!(d1 == d2) && d2 == 0) && pd2 == pa) && (\exists aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pa == unknown-#memory_int-unknown[pd2][(aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8 + pa * -4) / -4 * 4 + pd2 + 8] + 2 && 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pd2 <= 0) && 0 <= 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && 1 <= \result) && (\exists ULTIMATE.start_main_~pa~0.offset : int, aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (((aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + ULTIMATE.start_main_~pa~0.offset == unknown-#memory_int-unknown[pd2][(aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8 + ULTIMATE.start_main_~pa~0.offset * -4) / -4 * 4 + pd2 + 8] + 2 && 3 * ULTIMATE.start_main_~pa~0.offset + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pd2 <= 0) && i < unknown-#memory_int-unknown[pd2][ULTIMATE.start_main_~pa~0.offset] + 1) && unknown-#memory_int-unknown[pd2][ULTIMATE.start_main_~pa~0.offset] <= i) && 0 <= 3 * ULTIMATE.start_main_~pa~0.offset + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && pd2 == 0) && d1 == 0) && pd1 == pd2) && pd1 == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1) && pd1 == d1) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((!(d1 == d2) && d2 == 0) && \result == d2) && d1 == 0) && \result == 0) || ((((!(d1 == d2) && d2 == 0) && d1 == 0) && d1 == \result) && \result == 0) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant [2021-10-28 23:16:34,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] [2021-10-28 23:16:34,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~pd1~0.offset_88,QUANTIFIED] Derived loop invariant: ((((((((((((!(d1 == d2) && d2 == 0) && pd2 == pa) && \result == d2) && pd1 == \result) && pa * 3 % -4 == 0) && (pa * -1 + 8) / -4 == unknown-#memory_int-unknown[pd2][(pa * -1 + 8) / -4 * 4 + pd2 + 8]) && pd2 == 0) && d1 == 0) && pd1 == pd2) && \result == 0) && pd1 == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1) || (((((((((!(d1 == d2) && d2 == 0) && pd2 == pa) && (\exists aux_div_ULTIMATE.start_main_~pd1~0.offset_88 : int :: (aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pa == unknown-#memory_int-unknown[pd2][(aux_div_ULTIMATE.start_main_~pd1~0.offset_88 * -4 + 8 + pa * -4) / -4 * 4 + pd2 + 8] + 2 && 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88 + pd2 <= 0) && 0 <= 3 * pa + 4 * aux_div_ULTIMATE.start_main_~pd1~0.offset_88)) && pd2 == 0) && d1 == 0) && pd1 == pd2) && pd1 == 0) && i < unknown-#memory_int-unknown[pa][pa] + 1) && pd1 == d1) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:16:34,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f28588a-896c-4290-8dac-33eb2aa89e4a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...