./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd9c6b82321d3b192dc5809ecc7ca6021855509a18ab1d23ca9eeb538976a0c0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:41:29,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:41:29,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:41:29,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:41:29,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:41:29,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:41:29,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:41:29,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:41:29,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:41:29,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:41:29,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:41:29,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:41:29,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:41:29,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:41:29,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:41:29,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:41:29,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:41:29,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:41:29,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:41:29,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:41:29,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:41:29,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:41:29,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:41:29,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:41:29,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:41:29,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:41:29,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:41:29,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:41:29,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:41:29,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:41:29,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:41:29,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:41:29,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:41:29,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:41:29,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:41:29,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:41:29,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:41:29,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:41:29,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:41:29,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:41:29,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:41:29,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 10:41:29,240 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:41:29,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:41:29,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:41:29,241 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:41:29,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:41:29,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:41:29,243 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:41:29,244 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:41:29,244 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:41:29,244 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:41:29,245 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:41:29,246 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:41:29,246 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:41:29,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:41:29,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:41:29,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:41:29,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:41:29,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:41:29,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:41:29,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:41:29,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:41:29,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:41:29,248 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:41:29,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:41:29,249 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:41:29,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:41:29,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:41:29,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:41:29,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:41:29,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:41:29,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:41:29,269 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:41:29,270 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd9c6b82321d3b192dc5809ecc7ca6021855509a18ab1d23ca9eeb538976a0c0 [2022-10-17 10:41:29,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:41:29,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:41:29,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:41:29,614 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:41:29,615 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:41:29,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/locks/test_locks_11.c [2022-10-17 10:41:29,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/data/066f909b2/407b8548068049d5b0d834991b937121/FLAGb72d3ea7c [2022-10-17 10:41:30,339 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:41:30,339 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/sv-benchmarks/c/locks/test_locks_11.c [2022-10-17 10:41:30,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/data/066f909b2/407b8548068049d5b0d834991b937121/FLAGb72d3ea7c [2022-10-17 10:41:30,674 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/data/066f909b2/407b8548068049d5b0d834991b937121 [2022-10-17 10:41:30,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:41:30,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:41:30,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:41:30,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:41:30,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:41:30,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:41:30" (1/1) ... [2022-10-17 10:41:30,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd51f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:30, skipping insertion in model container [2022-10-17 10:41:30,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:41:30" (1/1) ... [2022-10-17 10:41:30,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:41:30,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:41:30,977 WARN L230 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_1434d3ed-ae6c-48f2-8467-95f5b611431a/sv-benchmarks/c/locks/test_locks_11.c[4246,4259] [2022-10-17 10:41:30,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:41:30,988 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:41:31,014 WARN L230 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_1434d3ed-ae6c-48f2-8467-95f5b611431a/sv-benchmarks/c/locks/test_locks_11.c[4246,4259] [2022-10-17 10:41:31,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:41:31,029 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:41:31,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31 WrapperNode [2022-10-17 10:41:31,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:41:31,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:41:31,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:41:31,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:41:31,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,068 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-10-17 10:41:31,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:41:31,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:41:31,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:41:31,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:41:31,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,092 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:41:31,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:41:31,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:41:31,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:41:31,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (1/1) ... [2022-10-17 10:41:31,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:41:31,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:41:31,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:41:31,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:41:31,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:41:31,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:41:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:41:31,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:41:31,259 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:41:31,262 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:41:31,581 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:41:31,589 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:41:31,589 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:41:31,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:41:31 BoogieIcfgContainer [2022-10-17 10:41:31,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:41:31,593 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:41:31,593 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:41:31,598 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:41:31,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:41:31,599 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:41:30" (1/3) ... [2022-10-17 10:41:31,600 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14a60c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:41:31, skipping insertion in model container [2022-10-17 10:41:31,600 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:41:31,600 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:31" (2/3) ... [2022-10-17 10:41:31,601 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14a60c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:41:31, skipping insertion in model container [2022-10-17 10:41:31,601 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:41:31,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:41:31" (3/3) ... [2022-10-17 10:41:31,602 INFO L332 chiAutomizerObserver]: Analyzing ICFG test_locks_11.c [2022-10-17 10:41:31,672 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:41:31,672 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:41:31,672 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:41:31,672 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:41:31,672 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:41:31,673 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:41:31,673 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:41:31,673 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:41:31,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 42 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 41 states have internal predecessors, (77), 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) [2022-10-17 10:41:31,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-10-17 10:41:31,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:31,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:31,718 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:31,719 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:31,719 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:41:31,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 42 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 41 states have internal predecessors, (77), 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) [2022-10-17 10:41:31,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-10-17 10:41:31,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:31,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:31,730 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:31,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:31,747 INFO L748 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 27#L169-1true [2022-10-17 10:41:31,754 INFO L750 eck$LassoCheckResult]: Loop: 27#L169-1true assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 14#L46true assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 40#L73true assume 0 != main_~p1~0#1;main_~lk1~0#1 := 1; 41#L73-2true assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 28#L77-1true assume !(0 != main_~p3~0#1); 5#L81-1true assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 24#L85-1true assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 18#L89-1true assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 12#L93-1true assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 21#L97-1true assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 29#L101-1true assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 35#L105-1true assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 25#L109-1true assume !(0 != main_~p11~0#1); 20#L113-1true assume !(0 != main_~p1~0#1); 36#L119-1true assume !(0 != main_~p2~0#1); 8#L124-1true assume !(0 != main_~p3~0#1); 11#L129-1true assume !(0 != main_~p4~0#1); 19#L134-1true assume !(0 != main_~p5~0#1); 10#L139-1true assume !(0 != main_~p6~0#1); 3#L144-1true assume !(0 != main_~p7~0#1); 34#L149-1true assume !(0 != main_~p8~0#1); 17#L154-1true assume !(0 != main_~p9~0#1); 7#L159-1true assume !(0 != main_~p10~0#1); 38#L164-1true assume !(0 != main_~p11~0#1); 27#L169-1true [2022-10-17 10:41:31,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:31,766 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:41:31,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:31,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438907410] [2022-10-17 10:41:31,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:31,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:31,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:31,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:31,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:31,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1430849892, now seen corresponding path program 1 times [2022-10-17 10:41:31,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:31,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838744325] [2022-10-17 10:41:31,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:31,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:32,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:32,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:32,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838744325] [2022-10-17 10:41:32,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838744325] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:32,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:32,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:41:32,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537999515] [2022-10-17 10:41:32,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:32,183 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:41:32,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:32,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:32,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:32,228 INFO L87 Difference]: Start difference. First operand has 42 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 41 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-10-17 10:41:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:41:32,298 INFO L93 Difference]: Finished difference Result 81 states and 142 transitions. [2022-10-17 10:41:32,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 142 transitions. [2022-10-17 10:41:32,308 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-10-17 10:41:32,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 71 states and 113 transitions. [2022-10-17 10:41:32,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2022-10-17 10:41:32,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2022-10-17 10:41:32,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 113 transitions. [2022-10-17 10:41:32,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:32,324 INFO L218 hiAutomatonCegarLoop]: Abstraction has 71 states and 113 transitions. [2022-10-17 10:41:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 113 transitions. [2022-10-17 10:41:32,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-10-17 10:41:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 1.591549295774648) internal successors, (113), 70 states have internal predecessors, (113), 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) [2022-10-17 10:41:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 113 transitions. [2022-10-17 10:41:32,365 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 113 transitions. [2022-10-17 10:41:32,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:32,371 INFO L428 stractBuchiCegarLoop]: Abstraction has 71 states and 113 transitions. [2022-10-17 10:41:32,372 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:41:32,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 113 transitions. [2022-10-17 10:41:32,378 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-10-17 10:41:32,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:32,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:32,380 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:32,380 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:32,380 INFO L748 eck$LassoCheckResult]: Stem: 164#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 145#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 146#L169-1 [2022-10-17 10:41:32,380 INFO L750 eck$LassoCheckResult]: Loop: 146#L169-1 assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 179#L46 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 178#L73 assume !(0 != main_~p1~0#1); 174#L73-2 assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 168#L77-1 assume !(0 != main_~p3~0#1); 135#L81-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 136#L85-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 159#L89-1 assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 149#L93-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 150#L97-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 169#L101-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 170#L105-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 177#L109-1 assume !(0 != main_~p11~0#1); 175#L113-1 assume !(0 != main_~p1~0#1); 176#L119-1 assume !(0 != main_~p2~0#1); 196#L124-1 assume !(0 != main_~p3~0#1); 194#L129-1 assume !(0 != main_~p4~0#1); 192#L134-1 assume !(0 != main_~p5~0#1); 190#L139-1 assume !(0 != main_~p6~0#1); 188#L144-1 assume !(0 != main_~p7~0#1); 186#L149-1 assume !(0 != main_~p8~0#1); 157#L154-1 assume !(0 != main_~p9~0#1); 139#L159-1 assume !(0 != main_~p10~0#1); 141#L164-1 assume !(0 != main_~p11~0#1); 146#L169-1 [2022-10-17 10:41:32,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:32,382 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-10-17 10:41:32,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:32,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546010460] [2022-10-17 10:41:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:32,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:32,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:32,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:32,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:32,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1649704610, now seen corresponding path program 1 times [2022-10-17 10:41:32,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:32,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601750058] [2022-10-17 10:41:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:32,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:32,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601750058] [2022-10-17 10:41:32,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601750058] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:32,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:32,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:41:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468856234] [2022-10-17 10:41:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:32,523 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:41:32,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:32,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:32,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:32,525 INFO L87 Difference]: Start difference. First operand 71 states and 113 transitions. cyclomatic complexity: 44 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-10-17 10:41:32,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:41:32,543 INFO L93 Difference]: Finished difference Result 138 states and 218 transitions. [2022-10-17 10:41:32,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 218 transitions. [2022-10-17 10:41:32,546 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 136 [2022-10-17 10:41:32,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 138 states and 218 transitions. [2022-10-17 10:41:32,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 138 [2022-10-17 10:41:32,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 138 [2022-10-17 10:41:32,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 218 transitions. [2022-10-17 10:41:32,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:32,557 INFO L218 hiAutomatonCegarLoop]: Abstraction has 138 states and 218 transitions. [2022-10-17 10:41:32,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 218 transitions. [2022-10-17 10:41:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-10-17 10:41:32,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 138 states have (on average 1.5797101449275361) internal successors, (218), 137 states have internal predecessors, (218), 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) [2022-10-17 10:41:32,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 218 transitions. [2022-10-17 10:41:32,571 INFO L240 hiAutomatonCegarLoop]: Abstraction has 138 states and 218 transitions. [2022-10-17 10:41:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:32,573 INFO L428 stractBuchiCegarLoop]: Abstraction has 138 states and 218 transitions. [2022-10-17 10:41:32,573 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:41:32,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 218 transitions. [2022-10-17 10:41:32,575 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 136 [2022-10-17 10:41:32,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:32,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:32,576 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:32,577 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:32,577 INFO L748 eck$LassoCheckResult]: Stem: 379#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 360#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 361#L169-1 [2022-10-17 10:41:32,577 INFO L750 eck$LassoCheckResult]: Loop: 361#L169-1 assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 369#L46 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 370#L73 assume !(0 != main_~p1~0#1); 425#L73-2 assume !(0 != main_~p2~0#1); 424#L77-1 assume !(0 != main_~p3~0#1); 421#L81-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 418#L85-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 415#L89-1 assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 412#L93-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 409#L97-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 406#L101-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 404#L105-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 395#L109-1 assume !(0 != main_~p11~0#1); 396#L113-1 assume !(0 != main_~p1~0#1); 400#L119-1 assume !(0 != main_~p2~0#1); 357#L124-1 assume !(0 != main_~p3~0#1); 358#L129-1 assume !(0 != main_~p4~0#1); 353#L134-1 assume !(0 != main_~p5~0#1); 362#L139-1 assume !(0 != main_~p6~0#1); 363#L144-1 assume !(0 != main_~p7~0#1); 456#L149-1 assume !(0 != main_~p8~0#1); 454#L154-1 assume !(0 != main_~p9~0#1); 452#L159-1 assume !(0 != main_~p10~0#1); 388#L164-1 assume !(0 != main_~p11~0#1); 361#L169-1 [2022-10-17 10:41:32,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:32,578 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-10-17 10:41:32,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:32,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228013006] [2022-10-17 10:41:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:32,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:32,591 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:32,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:32,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:32,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2072406436, now seen corresponding path program 1 times [2022-10-17 10:41:32,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:32,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395073721] [2022-10-17 10:41:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:32,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:32,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:32,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395073721] [2022-10-17 10:41:32,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395073721] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:32,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:32,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:41:32,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487683749] [2022-10-17 10:41:32,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:32,715 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:41:32,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:32,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:32,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:32,718 INFO L87 Difference]: Start difference. First operand 138 states and 218 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-10-17 10:41:32,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:41:32,740 INFO L93 Difference]: Finished difference Result 270 states and 422 transitions. [2022-10-17 10:41:32,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 422 transitions. [2022-10-17 10:41:32,744 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 268 [2022-10-17 10:41:32,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 270 states and 422 transitions. [2022-10-17 10:41:32,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 270 [2022-10-17 10:41:32,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 270 [2022-10-17 10:41:32,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 270 states and 422 transitions. [2022-10-17 10:41:32,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:32,751 INFO L218 hiAutomatonCegarLoop]: Abstraction has 270 states and 422 transitions. [2022-10-17 10:41:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states and 422 transitions. [2022-10-17 10:41:32,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2022-10-17 10:41:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 270 states have (on average 1.5629629629629629) internal successors, (422), 269 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:41:32,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 422 transitions. [2022-10-17 10:41:32,777 INFO L240 hiAutomatonCegarLoop]: Abstraction has 270 states and 422 transitions. [2022-10-17 10:41:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:32,779 INFO L428 stractBuchiCegarLoop]: Abstraction has 270 states and 422 transitions. [2022-10-17 10:41:32,779 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:41:32,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 422 transitions. [2022-10-17 10:41:32,781 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 268 [2022-10-17 10:41:32,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:32,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:32,782 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:32,783 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:32,783 INFO L748 eck$LassoCheckResult]: Stem: 793#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 774#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 775#L169-1 [2022-10-17 10:41:32,783 INFO L750 eck$LassoCheckResult]: Loop: 775#L169-1 assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 917#L46 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 916#L73 assume !(0 != main_~p1~0#1); 914#L73-2 assume !(0 != main_~p2~0#1); 910#L77-1 assume !(0 != main_~p3~0#1); 906#L81-1 assume !(0 != main_~p4~0#1); 902#L85-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 898#L89-1 assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 894#L93-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 890#L97-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 886#L101-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 882#L105-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 878#L109-1 assume !(0 != main_~p11~0#1); 872#L113-1 assume !(0 != main_~p1~0#1); 873#L119-1 assume !(0 != main_~p2~0#1); 940#L124-1 assume !(0 != main_~p3~0#1); 937#L129-1 assume !(0 != main_~p4~0#1); 936#L134-1 assume !(0 != main_~p5~0#1); 933#L139-1 assume !(0 != main_~p6~0#1); 848#L144-1 assume !(0 != main_~p7~0#1); 843#L149-1 assume !(0 != main_~p8~0#1); 842#L154-1 assume !(0 != main_~p9~0#1); 831#L159-1 assume !(0 != main_~p10~0#1); 830#L164-1 assume !(0 != main_~p11~0#1); 775#L169-1 [2022-10-17 10:41:32,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:32,784 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-10-17 10:41:32,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:32,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924649163] [2022-10-17 10:41:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:32,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:32,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:32,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:32,799 INFO L85 PathProgramCache]: Analyzing trace with hash 383462694, now seen corresponding path program 1 times [2022-10-17 10:41:32,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:32,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466291679] [2022-10-17 10:41:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:32,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:32,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:32,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466291679] [2022-10-17 10:41:32,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466291679] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:32,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:32,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:41:32,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998879104] [2022-10-17 10:41:32,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:32,854 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:41:32,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:32,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:32,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:32,856 INFO L87 Difference]: Start difference. First operand 270 states and 422 transitions. cyclomatic complexity: 160 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-10-17 10:41:32,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:41:32,877 INFO L93 Difference]: Finished difference Result 530 states and 818 transitions. [2022-10-17 10:41:32,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 530 states and 818 transitions. [2022-10-17 10:41:32,883 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 528 [2022-10-17 10:41:32,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 530 states to 530 states and 818 transitions. [2022-10-17 10:41:32,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 530 [2022-10-17 10:41:32,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 530 [2022-10-17 10:41:32,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 530 states and 818 transitions. [2022-10-17 10:41:32,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:32,894 INFO L218 hiAutomatonCegarLoop]: Abstraction has 530 states and 818 transitions. [2022-10-17 10:41:32,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states and 818 transitions. [2022-10-17 10:41:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2022-10-17 10:41:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 530 states have (on average 1.5433962264150944) internal successors, (818), 529 states have internal predecessors, (818), 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) [2022-10-17 10:41:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 818 transitions. [2022-10-17 10:41:32,944 INFO L240 hiAutomatonCegarLoop]: Abstraction has 530 states and 818 transitions. [2022-10-17 10:41:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:32,945 INFO L428 stractBuchiCegarLoop]: Abstraction has 530 states and 818 transitions. [2022-10-17 10:41:32,945 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:41:32,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 530 states and 818 transitions. [2022-10-17 10:41:32,953 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 528 [2022-10-17 10:41:32,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:32,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:32,954 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:32,954 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:32,954 INFO L748 eck$LassoCheckResult]: Stem: 1600#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 1580#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 1581#L169-1 [2022-10-17 10:41:32,954 INFO L750 eck$LassoCheckResult]: Loop: 1581#L169-1 assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 1663#L46 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 1661#L73 assume !(0 != main_~p1~0#1); 1657#L73-2 assume !(0 != main_~p2~0#1); 1655#L77-1 assume !(0 != main_~p3~0#1); 1651#L81-1 assume !(0 != main_~p4~0#1); 1647#L85-1 assume !(0 != main_~p5~0#1); 1645#L89-1 assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1; 1643#L93-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 1641#L97-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 1639#L101-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 1637#L105-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 1635#L109-1 assume !(0 != main_~p11~0#1); 1632#L113-1 assume !(0 != main_~p1~0#1); 1633#L119-1 assume !(0 != main_~p2~0#1); 1699#L124-1 assume !(0 != main_~p3~0#1); 1694#L129-1 assume !(0 != main_~p4~0#1); 1690#L134-1 assume !(0 != main_~p5~0#1); 1687#L139-1 assume !(0 != main_~p6~0#1); 1683#L144-1 assume !(0 != main_~p7~0#1); 1679#L149-1 assume !(0 != main_~p8~0#1); 1675#L154-1 assume !(0 != main_~p9~0#1); 1671#L159-1 assume !(0 != main_~p10~0#1); 1667#L164-1 assume !(0 != main_~p11~0#1); 1581#L169-1 [2022-10-17 10:41:32,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:32,955 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2022-10-17 10:41:32,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:32,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012377992] [2022-10-17 10:41:32,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:32,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:32,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:32,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:32,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:32,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1610682012, now seen corresponding path program 1 times [2022-10-17 10:41:32,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:32,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600937095] [2022-10-17 10:41:32,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:32,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:33,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:33,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600937095] [2022-10-17 10:41:33,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600937095] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:33,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:33,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:41:33,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541460735] [2022-10-17 10:41:33,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:33,084 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:41:33,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:33,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:33,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:33,086 INFO L87 Difference]: Start difference. First operand 530 states and 818 transitions. cyclomatic complexity: 304 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-10-17 10:41:33,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:41:33,135 INFO L93 Difference]: Finished difference Result 1042 states and 1586 transitions. [2022-10-17 10:41:33,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1042 states and 1586 transitions. [2022-10-17 10:41:33,147 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1040 [2022-10-17 10:41:33,157 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1042 states to 1042 states and 1586 transitions. [2022-10-17 10:41:33,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1042 [2022-10-17 10:41:33,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1042 [2022-10-17 10:41:33,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1042 states and 1586 transitions. [2022-10-17 10:41:33,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:33,161 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1042 states and 1586 transitions. [2022-10-17 10:41:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states and 1586 transitions. [2022-10-17 10:41:33,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2022-10-17 10:41:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 1042 states have (on average 1.5220729366602688) internal successors, (1586), 1041 states have internal predecessors, (1586), 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) [2022-10-17 10:41:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1586 transitions. [2022-10-17 10:41:33,196 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1042 states and 1586 transitions. [2022-10-17 10:41:33,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:33,200 INFO L428 stractBuchiCegarLoop]: Abstraction has 1042 states and 1586 transitions. [2022-10-17 10:41:33,200 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:41:33,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1042 states and 1586 transitions. [2022-10-17 10:41:33,209 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1040 [2022-10-17 10:41:33,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:33,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:33,210 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:33,210 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:33,210 INFO L748 eck$LassoCheckResult]: Stem: 3176#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 3158#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 3159#L169-1 [2022-10-17 10:41:33,210 INFO L750 eck$LassoCheckResult]: Loop: 3159#L169-1 assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 3298#L46 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 3294#L73 assume !(0 != main_~p1~0#1); 3290#L73-2 assume !(0 != main_~p2~0#1); 3288#L77-1 assume !(0 != main_~p3~0#1); 3286#L81-1 assume !(0 != main_~p4~0#1); 3282#L85-1 assume !(0 != main_~p5~0#1); 3278#L89-1 assume !(0 != main_~p6~0#1); 3276#L93-1 assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1; 3274#L97-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 3272#L101-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 3270#L105-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 3268#L109-1 assume !(0 != main_~p11~0#1); 3264#L113-1 assume !(0 != main_~p1~0#1); 3260#L119-1 assume !(0 != main_~p2~0#1); 3257#L124-1 assume !(0 != main_~p3~0#1); 3253#L129-1 assume !(0 != main_~p4~0#1); 3254#L134-1 assume !(0 != main_~p5~0#1); 3321#L139-1 assume !(0 != main_~p6~0#1); 3318#L144-1 assume !(0 != main_~p7~0#1); 3314#L149-1 assume !(0 != main_~p8~0#1); 3310#L154-1 assume !(0 != main_~p9~0#1); 3306#L159-1 assume !(0 != main_~p10~0#1); 3302#L164-1 assume !(0 != main_~p11~0#1); 3159#L169-1 [2022-10-17 10:41:33,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:33,211 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2022-10-17 10:41:33,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:33,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536666948] [2022-10-17 10:41:33,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:33,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:33,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:33,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:33,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1095937382, now seen corresponding path program 1 times [2022-10-17 10:41:33,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:33,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733169487] [2022-10-17 10:41:33,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:33,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:33,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:33,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733169487] [2022-10-17 10:41:33,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733169487] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:33,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:33,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:41:33,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726281987] [2022-10-17 10:41:33,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:33,287 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:41:33,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:33,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:33,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:33,288 INFO L87 Difference]: Start difference. First operand 1042 states and 1586 transitions. cyclomatic complexity: 576 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-10-17 10:41:33,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:41:33,324 INFO L93 Difference]: Finished difference Result 2050 states and 3074 transitions. [2022-10-17 10:41:33,325 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2050 states and 3074 transitions. [2022-10-17 10:41:33,354 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2048 [2022-10-17 10:41:33,373 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2050 states to 2050 states and 3074 transitions. [2022-10-17 10:41:33,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2050 [2022-10-17 10:41:33,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2050 [2022-10-17 10:41:33,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2050 states and 3074 transitions. [2022-10-17 10:41:33,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:33,381 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2050 states and 3074 transitions. [2022-10-17 10:41:33,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states and 3074 transitions. [2022-10-17 10:41:33,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2022-10-17 10:41:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2050 states have (on average 1.4995121951219512) internal successors, (3074), 2049 states have internal predecessors, (3074), 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) [2022-10-17 10:41:33,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 3074 transitions. [2022-10-17 10:41:33,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2050 states and 3074 transitions. [2022-10-17 10:41:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:33,461 INFO L428 stractBuchiCegarLoop]: Abstraction has 2050 states and 3074 transitions. [2022-10-17 10:41:33,464 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 10:41:33,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2050 states and 3074 transitions. [2022-10-17 10:41:33,482 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2048 [2022-10-17 10:41:33,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:33,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:33,484 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:33,484 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:33,485 INFO L748 eck$LassoCheckResult]: Stem: 6275#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 6255#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 6256#L169-1 [2022-10-17 10:41:33,485 INFO L750 eck$LassoCheckResult]: Loop: 6256#L169-1 assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 6363#L46 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 6361#L73 assume !(0 != main_~p1~0#1); 6357#L73-2 assume !(0 != main_~p2~0#1); 6355#L77-1 assume !(0 != main_~p3~0#1); 6351#L81-1 assume !(0 != main_~p4~0#1); 6347#L85-1 assume !(0 != main_~p5~0#1); 6343#L89-1 assume !(0 != main_~p6~0#1); 6339#L93-1 assume !(0 != main_~p7~0#1); 6337#L97-1 assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1; 6335#L101-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 6333#L105-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 6331#L109-1 assume !(0 != main_~p11~0#1); 6328#L113-1 assume !(0 != main_~p1~0#1); 6329#L119-1 assume !(0 != main_~p2~0#1); 6399#L124-1 assume !(0 != main_~p3~0#1); 6394#L129-1 assume !(0 != main_~p4~0#1); 6390#L134-1 assume !(0 != main_~p5~0#1); 6386#L139-1 assume !(0 != main_~p6~0#1); 6382#L144-1 assume !(0 != main_~p7~0#1); 6379#L149-1 assume !(0 != main_~p8~0#1); 6375#L154-1 assume !(0 != main_~p9~0#1); 6371#L159-1 assume !(0 != main_~p10~0#1); 6367#L164-1 assume !(0 != main_~p11~0#1); 6256#L169-1 [2022-10-17 10:41:33,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:33,491 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 7 times [2022-10-17 10:41:33,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:33,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702304555] [2022-10-17 10:41:33,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:33,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:33,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:33,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash 74869028, now seen corresponding path program 1 times [2022-10-17 10:41:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:33,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652941626] [2022-10-17 10:41:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:33,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:33,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:33,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:33,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652941626] [2022-10-17 10:41:33,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652941626] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:33,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:33,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:41:33,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780092086] [2022-10-17 10:41:33,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:33,590 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:41:33,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:33,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:33,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:33,591 INFO L87 Difference]: Start difference. First operand 2050 states and 3074 transitions. cyclomatic complexity: 1088 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-10-17 10:41:33,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:41:33,646 INFO L93 Difference]: Finished difference Result 4034 states and 5954 transitions. [2022-10-17 10:41:33,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4034 states and 5954 transitions. [2022-10-17 10:41:33,692 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 4032 [2022-10-17 10:41:33,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4034 states to 4034 states and 5954 transitions. [2022-10-17 10:41:33,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4034 [2022-10-17 10:41:33,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4034 [2022-10-17 10:41:33,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4034 states and 5954 transitions. [2022-10-17 10:41:33,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:33,738 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4034 states and 5954 transitions. [2022-10-17 10:41:33,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states and 5954 transitions. [2022-10-17 10:41:33,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 4034. [2022-10-17 10:41:33,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4034 states, 4034 states have (on average 1.4759543877045116) internal successors, (5954), 4033 states have internal predecessors, (5954), 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) [2022-10-17 10:41:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4034 states to 4034 states and 5954 transitions. [2022-10-17 10:41:33,847 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4034 states and 5954 transitions. [2022-10-17 10:41:33,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:33,850 INFO L428 stractBuchiCegarLoop]: Abstraction has 4034 states and 5954 transitions. [2022-10-17 10:41:33,851 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-10-17 10:41:33,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4034 states and 5954 transitions. [2022-10-17 10:41:33,877 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 4032 [2022-10-17 10:41:33,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:33,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:33,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:33,878 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:33,879 INFO L748 eck$LassoCheckResult]: Stem: 12367#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 12345#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 12346#L169-1 [2022-10-17 10:41:33,879 INFO L750 eck$LassoCheckResult]: Loop: 12346#L169-1 assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 12506#L46 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 12500#L73 assume !(0 != main_~p1~0#1); 12494#L73-2 assume !(0 != main_~p2~0#1); 12495#L77-1 assume !(0 != main_~p3~0#1); 12689#L81-1 assume !(0 != main_~p4~0#1); 12687#L85-1 assume !(0 != main_~p5~0#1); 12685#L89-1 assume !(0 != main_~p6~0#1); 12450#L93-1 assume !(0 != main_~p7~0#1); 12452#L97-1 assume !(0 != main_~p8~0#1); 12638#L101-1 assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1; 12634#L105-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 12630#L109-1 assume !(0 != main_~p11~0#1); 12626#L113-1 assume !(0 != main_~p1~0#1); 12627#L119-1 assume !(0 != main_~p2~0#1); 12684#L124-1 assume !(0 != main_~p3~0#1); 12681#L129-1 assume !(0 != main_~p4~0#1); 12679#L134-1 assume !(0 != main_~p5~0#1); 12677#L139-1 assume !(0 != main_~p6~0#1); 12675#L144-1 assume !(0 != main_~p7~0#1); 12672#L149-1 assume !(0 != main_~p8~0#1); 12670#L154-1 assume !(0 != main_~p9~0#1); 12532#L159-1 assume !(0 != main_~p10~0#1); 12518#L164-1 assume !(0 != main_~p11~0#1); 12346#L169-1 [2022-10-17 10:41:33,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:33,879 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 8 times [2022-10-17 10:41:33,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:33,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807425987] [2022-10-17 10:41:33,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:33,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:33,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:33,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:33,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:33,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1204994650, now seen corresponding path program 1 times [2022-10-17 10:41:33,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:33,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034552238] [2022-10-17 10:41:33,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:33,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:33,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:33,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:33,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034552238] [2022-10-17 10:41:33,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034552238] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:33,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:33,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:41:33,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262071392] [2022-10-17 10:41:33,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:33,967 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:41:33,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:33,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:33,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:33,968 INFO L87 Difference]: Start difference. First operand 4034 states and 5954 transitions. cyclomatic complexity: 2048 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-10-17 10:41:34,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:41:34,051 INFO L93 Difference]: Finished difference Result 7938 states and 11522 transitions. [2022-10-17 10:41:34,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7938 states and 11522 transitions. [2022-10-17 10:41:34,111 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 7936 [2022-10-17 10:41:34,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7938 states to 7938 states and 11522 transitions. [2022-10-17 10:41:34,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7938 [2022-10-17 10:41:34,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7938 [2022-10-17 10:41:34,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7938 states and 11522 transitions. [2022-10-17 10:41:34,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:34,198 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7938 states and 11522 transitions. [2022-10-17 10:41:34,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7938 states and 11522 transitions. [2022-10-17 10:41:34,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7938 to 7938. [2022-10-17 10:41:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7938 states, 7938 states have (on average 1.4514991181657848) internal successors, (11522), 7937 states have internal predecessors, (11522), 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) [2022-10-17 10:41:34,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7938 states to 7938 states and 11522 transitions. [2022-10-17 10:41:34,487 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7938 states and 11522 transitions. [2022-10-17 10:41:34,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:34,489 INFO L428 stractBuchiCegarLoop]: Abstraction has 7938 states and 11522 transitions. [2022-10-17 10:41:34,489 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-10-17 10:41:34,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7938 states and 11522 transitions. [2022-10-17 10:41:34,530 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 7936 [2022-10-17 10:41:34,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:34,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:34,532 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:34,532 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:34,532 INFO L748 eck$LassoCheckResult]: Stem: 24342#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 24323#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 24324#L169-1 [2022-10-17 10:41:34,532 INFO L750 eck$LassoCheckResult]: Loop: 24324#L169-1 assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 24735#L46 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 24728#L73 assume !(0 != main_~p1~0#1); 24720#L73-2 assume !(0 != main_~p2~0#1); 24716#L77-1 assume !(0 != main_~p3~0#1); 24714#L81-1 assume !(0 != main_~p4~0#1); 24712#L85-1 assume !(0 != main_~p5~0#1); 24710#L89-1 assume !(0 != main_~p6~0#1); 24709#L93-1 assume !(0 != main_~p7~0#1); 24707#L97-1 assume !(0 != main_~p8~0#1); 24706#L101-1 assume !(0 != main_~p9~0#1); 24702#L105-1 assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1; 24699#L109-1 assume !(0 != main_~p11~0#1); 24695#L113-1 assume !(0 != main_~p1~0#1); 24681#L119-1 assume !(0 != main_~p2~0#1); 24678#L124-1 assume !(0 != main_~p3~0#1); 24669#L129-1 assume !(0 != main_~p4~0#1); 24659#L134-1 assume !(0 != main_~p5~0#1); 24649#L139-1 assume !(0 != main_~p6~0#1); 24639#L144-1 assume !(0 != main_~p7~0#1); 24630#L149-1 assume !(0 != main_~p8~0#1); 24631#L154-1 assume !(0 != main_~p9~0#1); 24832#L159-1 assume !(0 != main_~p10~0#1); 24746#L164-1 assume !(0 != main_~p11~0#1); 24324#L169-1 [2022-10-17 10:41:34,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:34,533 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 9 times [2022-10-17 10:41:34,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:34,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910394345] [2022-10-17 10:41:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:34,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:34,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:34,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:34,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:34,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2078855396, now seen corresponding path program 1 times [2022-10-17 10:41:34,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:34,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919557708] [2022-10-17 10:41:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:34,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:34,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:34,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919557708] [2022-10-17 10:41:34,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919557708] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:34,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:34,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:41:34,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560360654] [2022-10-17 10:41:34,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:34,594 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:41:34,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:34,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:34,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:34,596 INFO L87 Difference]: Start difference. First operand 7938 states and 11522 transitions. cyclomatic complexity: 3840 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-10-17 10:41:34,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:41:34,701 INFO L93 Difference]: Finished difference Result 15618 states and 22274 transitions. [2022-10-17 10:41:34,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15618 states and 22274 transitions. [2022-10-17 10:41:34,816 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 15616 [2022-10-17 10:41:35,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15618 states to 15618 states and 22274 transitions. [2022-10-17 10:41:35,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15618 [2022-10-17 10:41:35,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15618 [2022-10-17 10:41:35,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15618 states and 22274 transitions. [2022-10-17 10:41:35,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:35,072 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15618 states and 22274 transitions. [2022-10-17 10:41:35,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15618 states and 22274 transitions. [2022-10-17 10:41:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15618 to 15618. [2022-10-17 10:41:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15618 states, 15618 states have (on average 1.4261749263670125) internal successors, (22274), 15617 states have internal predecessors, (22274), 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) [2022-10-17 10:41:35,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15618 states to 15618 states and 22274 transitions. [2022-10-17 10:41:35,688 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15618 states and 22274 transitions. [2022-10-17 10:41:35,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:35,689 INFO L428 stractBuchiCegarLoop]: Abstraction has 15618 states and 22274 transitions. [2022-10-17 10:41:35,689 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-10-17 10:41:35,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15618 states and 22274 transitions. [2022-10-17 10:41:35,782 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 15616 [2022-10-17 10:41:35,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:41:35,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:41:35,785 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:41:35,785 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:35,785 INFO L748 eck$LassoCheckResult]: Stem: 47906#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 47884#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~cond~0#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_~cond~0#1; 47885#L169-1 [2022-10-17 10:41:35,785 INFO L750 eck$LassoCheckResult]: Loop: 47885#L169-1 assume !false;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; 48601#L46 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0; 48598#L73 assume !(0 != main_~p1~0#1); 48594#L73-2 assume !(0 != main_~p2~0#1); 48591#L77-1 assume !(0 != main_~p3~0#1); 48588#L81-1 assume !(0 != main_~p4~0#1); 48584#L85-1 assume !(0 != main_~p5~0#1); 48580#L89-1 assume !(0 != main_~p6~0#1); 48576#L93-1 assume !(0 != main_~p7~0#1); 48572#L97-1 assume !(0 != main_~p8~0#1); 48568#L101-1 assume !(0 != main_~p9~0#1); 48569#L105-1 assume !(0 != main_~p10~0#1); 48527#L109-1 assume !(0 != main_~p11~0#1); 48528#L113-1 assume !(0 != main_~p1~0#1); 48643#L119-1 assume !(0 != main_~p2~0#1); 48637#L124-1 assume !(0 != main_~p3~0#1); 48631#L129-1 assume !(0 != main_~p4~0#1); 48626#L134-1 assume !(0 != main_~p5~0#1); 48622#L139-1 assume !(0 != main_~p6~0#1); 48617#L144-1 assume !(0 != main_~p7~0#1); 48612#L149-1 assume !(0 != main_~p8~0#1); 48609#L154-1 assume !(0 != main_~p9~0#1); 48607#L159-1 assume !(0 != main_~p10~0#1); 48606#L164-1 assume !(0 != main_~p11~0#1); 47885#L169-1 [2022-10-17 10:41:35,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:35,786 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 10 times [2022-10-17 10:41:35,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:35,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407176087] [2022-10-17 10:41:35,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:35,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:35,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:35,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:35,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:35,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1492049382, now seen corresponding path program 1 times [2022-10-17 10:41:35,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:35,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501291531] [2022-10-17 10:41:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:35,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:35,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:35,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:35,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:35,850 INFO L85 PathProgramCache]: Analyzing trace with hash 376454056, now seen corresponding path program 1 times [2022-10-17 10:41:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:35,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756452437] [2022-10-17 10:41:35,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:35,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:35,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:35,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:36,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:36,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:41:36 BoogieIcfgContainer [2022-10-17 10:41:36,607 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:41:36,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:41:36,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:41:36,607 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:41:36,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:41:31" (3/4) ... [2022-10-17 10:41:36,611 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-10-17 10:41:36,661 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:41:36,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:41:36,662 INFO L158 Benchmark]: Toolchain (without parser) took 5982.24ms. Allocated memory was 113.2MB in the beginning and 390.1MB in the end (delta: 276.8MB). Free memory was 70.1MB in the beginning and 264.6MB in the end (delta: -194.4MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. [2022-10-17 10:41:36,662 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:41:36,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.22ms. Allocated memory is still 113.2MB. Free memory was 70.0MB in the beginning and 86.5MB in the end (delta: -16.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:41:36,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.92ms. Allocated memory is still 113.2MB. Free memory was 86.2MB in the beginning and 84.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:41:36,663 INFO L158 Benchmark]: Boogie Preprocessor took 26.53ms. Allocated memory is still 113.2MB. Free memory was 84.6MB in the beginning and 83.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:41:36,664 INFO L158 Benchmark]: RCFGBuilder took 495.37ms. Allocated memory is still 113.2MB. Free memory was 83.1MB in the beginning and 69.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 10:41:36,664 INFO L158 Benchmark]: BuchiAutomizer took 5013.66ms. Allocated memory was 113.2MB in the beginning and 390.1MB in the end (delta: 276.8MB). Free memory was 69.9MB in the beginning and 266.7MB in the end (delta: -196.7MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. [2022-10-17 10:41:36,665 INFO L158 Benchmark]: Witness Printer took 54.03ms. Allocated memory is still 390.1MB. Free memory was 266.7MB in the beginning and 264.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:41:36,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.22ms. Allocated memory is still 113.2MB. Free memory was 70.0MB in the beginning and 86.5MB in the end (delta: -16.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.92ms. Allocated memory is still 113.2MB. Free memory was 86.2MB in the beginning and 84.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.53ms. Allocated memory is still 113.2MB. Free memory was 84.6MB in the beginning and 83.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 495.37ms. Allocated memory is still 113.2MB. Free memory was 83.1MB in the beginning and 69.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 5013.66ms. Allocated memory was 113.2MB in the beginning and 390.1MB in the end (delta: 276.8MB). Free memory was 69.9MB in the beginning and 266.7MB in the end (delta: -196.7MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. * Witness Printer took 54.03ms. Allocated memory is still 390.1MB. Free memory was 266.7MB in the beginning and 264.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (9 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.9 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 15618 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 10 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 0. Minimization of det autom 9. Minimization of nondet autom 0. Automata minimization 1.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.6s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 411 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 411 mSDsluCounter, 1287 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 491 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 796 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI9 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 44]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L42] int cond; Loop: [L44] COND TRUE 1 [L45] cond = __VERIFIER_nondet_int() [L46] COND FALSE !(cond == 0) [L49] lk1 = 0 [L51] lk2 = 0 [L53] lk3 = 0 [L55] lk4 = 0 [L57] lk5 = 0 [L59] lk6 = 0 [L61] lk7 = 0 [L63] lk8 = 0 [L65] lk9 = 0 [L67] lk10 = 0 [L69] lk11 = 0 [L73] COND FALSE !(p1 != 0) [L77] COND FALSE !(p2 != 0) [L81] COND FALSE !(p3 != 0) [L85] COND FALSE !(p4 != 0) [L89] COND FALSE !(p5 != 0) [L93] COND FALSE !(p6 != 0) [L97] COND FALSE !(p7 != 0) [L101] COND FALSE !(p8 != 0) [L105] COND FALSE !(p9 != 0) [L109] COND FALSE !(p10 != 0) [L113] COND FALSE !(p11 != 0) [L119] COND FALSE !(p1 != 0) [L124] COND FALSE !(p2 != 0) [L129] COND FALSE !(p3 != 0) [L134] COND FALSE !(p4 != 0) [L139] COND FALSE !(p5 != 0) [L144] COND FALSE !(p6 != 0) [L149] COND FALSE !(p7 != 0) [L154] COND FALSE !(p8 != 0) [L159] COND FALSE !(p9 != 0) [L164] COND FALSE !(p10 != 0) [L169] COND FALSE !(p11 != 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 44]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L42] int cond; Loop: [L44] COND TRUE 1 [L45] cond = __VERIFIER_nondet_int() [L46] COND FALSE !(cond == 0) [L49] lk1 = 0 [L51] lk2 = 0 [L53] lk3 = 0 [L55] lk4 = 0 [L57] lk5 = 0 [L59] lk6 = 0 [L61] lk7 = 0 [L63] lk8 = 0 [L65] lk9 = 0 [L67] lk10 = 0 [L69] lk11 = 0 [L73] COND FALSE !(p1 != 0) [L77] COND FALSE !(p2 != 0) [L81] COND FALSE !(p3 != 0) [L85] COND FALSE !(p4 != 0) [L89] COND FALSE !(p5 != 0) [L93] COND FALSE !(p6 != 0) [L97] COND FALSE !(p7 != 0) [L101] COND FALSE !(p8 != 0) [L105] COND FALSE !(p9 != 0) [L109] COND FALSE !(p10 != 0) [L113] COND FALSE !(p11 != 0) [L119] COND FALSE !(p1 != 0) [L124] COND FALSE !(p2 != 0) [L129] COND FALSE !(p3 != 0) [L134] COND FALSE !(p4 != 0) [L139] COND FALSE !(p5 != 0) [L144] COND FALSE !(p6 != 0) [L149] COND FALSE !(p7 != 0) [L154] COND FALSE !(p8 != 0) [L159] COND FALSE !(p9 != 0) [L164] COND FALSE !(p10 != 0) [L169] COND FALSE !(p11 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 10:41:36,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1434d3ed-ae6c-48f2-8467-95f5b611431a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)