./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix018.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix018.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7349305eeae716fa3a7c11218caa894d6e5121d77db0055a98af7bd7c666586 --- 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-8393723 [2022-11-18 20:11:13,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:11:13,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:11:13,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:11:13,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:11:13,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:11:13,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:11:13,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:11:13,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:11:13,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:11:13,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:11:13,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:11:13,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:11:13,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:11:13,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:11:13,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:11:13,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:11:13,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:11:13,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:11:13,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:11:13,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:11:13,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:11:13,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:11:13,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:11:13,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:11:13,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:11:13,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:11:13,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:11:13,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:11:13,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:11:13,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:11:13,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:11:13,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:11:13,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:11:13,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:11:13,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:11:13,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:11:13,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:11:13,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:11:13,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:11:13,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:11:13,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:11:13,264 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:11:13,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:11:13,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:11:13,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:11:13,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:11:13,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:11:13,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:11:13,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:11:13,267 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:11:13,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:11:13,269 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:11:13,269 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:11:13,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:11:13,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:11:13,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:11:13,270 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:11:13,270 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:11:13,270 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:11:13,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:11:13,271 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:11:13,271 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:11:13,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:11:13,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:11:13,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:11:13,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:11:13,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:11:13,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:11:13,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:11:13,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:11:13,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:11:13,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7349305eeae716fa3a7c11218caa894d6e5121d77db0055a98af7bd7c666586 [2022-11-18 20:11:13,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:11:13,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:11:13,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:11:13,599 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:11:13,602 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:11:13,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix018.opt.i [2022-11-18 20:11:13,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data/b9bdbf9f1/f77b24c8ecb84a85b0ef0c7e5c32d6b3/FLAGa324a36a2 [2022-11-18 20:11:14,284 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:11:14,285 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/sv-benchmarks/c/pthread-wmm/mix018.opt.i [2022-11-18 20:11:14,304 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data/b9bdbf9f1/f77b24c8ecb84a85b0ef0c7e5c32d6b3/FLAGa324a36a2 [2022-11-18 20:11:14,571 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data/b9bdbf9f1/f77b24c8ecb84a85b0ef0c7e5c32d6b3 [2022-11-18 20:11:14,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:11:14,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:11:14,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:11:14,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:11:14,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:11:14,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:11:14" (1/1) ... [2022-11-18 20:11:14,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355fbd0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:14, skipping insertion in model container [2022-11-18 20:11:14,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:11:14" (1/1) ... [2022-11-18 20:11:14,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:11:14,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:11:14,840 WARN L234 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_7e489c11-7a7b-4302-8977-d045a4b0a1a8/sv-benchmarks/c/pthread-wmm/mix018.opt.i[944,957] [2022-11-18 20:11:15,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:11:15,039 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:11:15,051 WARN L234 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_7e489c11-7a7b-4302-8977-d045a4b0a1a8/sv-benchmarks/c/pthread-wmm/mix018.opt.i[944,957] [2022-11-18 20:11:15,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:11:15,169 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:11:15,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15 WrapperNode [2022-11-18 20:11:15,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:11:15,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:11:15,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:11:15,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:11:15,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,261 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 163 [2022-11-18 20:11:15,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:11:15,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:11:15,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:11:15,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:11:15,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,307 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:11:15,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:11:15,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:11:15,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:11:15,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (1/1) ... [2022-11-18 20:11:15,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:11:15,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:15,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:15,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:11:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:11:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:11:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:11:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:11:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:11:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:11:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:11:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:11:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:11:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 20:11:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 20:11:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-18 20:11:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-18 20:11:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:11:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:11:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:11:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:11:15,412 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:11:15,632 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:11:15,634 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:11:16,053 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:11:16,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:11:16,446 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:11:16,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:16 BoogieIcfgContainer [2022-11-18 20:11:16,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:11:16,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:11:16,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:11:16,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:11:16,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:11:14" (1/3) ... [2022-11-18 20:11:16,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316a4b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:11:16, skipping insertion in model container [2022-11-18 20:11:16,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:15" (2/3) ... [2022-11-18 20:11:16,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316a4b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:11:16, skipping insertion in model container [2022-11-18 20:11:16,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:16" (3/3) ... [2022-11-18 20:11:16,462 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018.opt.i [2022-11-18 20:11:16,482 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:11:16,482 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-18 20:11:16,483 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:11:16,600 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:11:16,639 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:11:16,654 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 147 transitions, 314 flow [2022-11-18 20:11:16,658 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 147 transitions, 314 flow [2022-11-18 20:11:16,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 147 transitions, 314 flow [2022-11-18 20:11:16,731 INFO L130 PetriNetUnfolder]: 2/143 cut-off events. [2022-11-18 20:11:16,731 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:11:16,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 2/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-11-18 20:11:16,740 INFO L119 LiptonReduction]: Number of co-enabled transitions 3240 [2022-11-18 20:11:22,779 INFO L134 LiptonReduction]: Checked pairs total: 8245 [2022-11-18 20:11:22,779 INFO L136 LiptonReduction]: Total number of compositions: 142 [2022-11-18 20:11:22,788 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 42 transitions, 104 flow [2022-11-18 20:11:23,014 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 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) [2022-11-18 20:11:23,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:11:23,047 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e1744db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:11:23,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-18 20:11:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 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) [2022-11-18 20:11:23,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:11:23,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:23,067 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:11:23,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:23,076 INFO L85 PathProgramCache]: Analyzing trace with hash 624, now seen corresponding path program 1 times [2022-11-18 20:11:23,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:23,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532355506] [2022-11-18 20:11:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:23,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:23,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:23,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532355506] [2022-11-18 20:11:23,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532355506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:23,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:23,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:11:23,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928016375] [2022-11-18 20:11:23,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:23,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:11:23,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:23,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:11:23,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:11:23,276 INFO L87 Difference]: Start difference. First operand has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-18 20:11:23,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:23,410 INFO L93 Difference]: Finished difference Result 2986 states and 11584 transitions. [2022-11-18 20:11:23,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:11:23,413 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-18 20:11:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:23,471 INFO L225 Difference]: With dead ends: 2986 [2022-11-18 20:11:23,471 INFO L226 Difference]: Without dead ends: 2986 [2022-11-18 20:11:23,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:11:23,476 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:23,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:23,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-11-18 20:11:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2986. [2022-11-18 20:11:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2981 states have (on average 3.8859443139885945) internal successors, (11584), 2985 states have internal predecessors, (11584), 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) [2022-11-18 20:11:23,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 11584 transitions. [2022-11-18 20:11:23,701 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 11584 transitions. Word has length 1 [2022-11-18 20:11:23,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:23,701 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 11584 transitions. [2022-11-18 20:11:23,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-18 20:11:23,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 11584 transitions. [2022-11-18 20:11:23,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:11:23,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:23,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:23,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:11:23,710 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:23,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:23,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1513301101, now seen corresponding path program 1 times [2022-11-18 20:11:23,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:23,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676427539] [2022-11-18 20:11:23,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:23,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:24,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:24,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:24,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676427539] [2022-11-18 20:11:24,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676427539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:24,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:24,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:11:24,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073590418] [2022-11-18 20:11:24,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:24,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:11:24,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:24,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:11:24,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:24,299 INFO L87 Difference]: Start difference. First operand 2986 states and 11584 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:24,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:24,425 INFO L93 Difference]: Finished difference Result 2538 states and 9744 transitions. [2022-11-18 20:11:24,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:11:24,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:11:24,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:24,447 INFO L225 Difference]: With dead ends: 2538 [2022-11-18 20:11:24,451 INFO L226 Difference]: Without dead ends: 2474 [2022-11-18 20:11:24,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:24,452 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:24,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:24,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-18 20:11:24,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-11-18 20:11:24,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2472 states have (on average 3.8576051779935274) internal successors, (9536), 2473 states have internal predecessors, (9536), 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) [2022-11-18 20:11:24,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 9536 transitions. [2022-11-18 20:11:24,584 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 9536 transitions. Word has length 9 [2022-11-18 20:11:24,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:24,585 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 9536 transitions. [2022-11-18 20:11:24,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 9536 transitions. [2022-11-18 20:11:24,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:11:24,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:24,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:24,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:11:24,590 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:24,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:24,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1711655209, now seen corresponding path program 1 times [2022-11-18 20:11:24,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:24,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498600402] [2022-11-18 20:11:24,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:24,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:24,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:24,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498600402] [2022-11-18 20:11:24,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498600402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:24,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:24,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:11:24,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642221206] [2022-11-18 20:11:24,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:24,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:11:24,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:24,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:11:24,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:24,823 INFO L87 Difference]: Start difference. First operand 2474 states and 9536 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-18 20:11:25,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:25,010 INFO L93 Difference]: Finished difference Result 3998 states and 14882 transitions. [2022-11-18 20:11:25,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:11:25,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:11:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:25,045 INFO L225 Difference]: With dead ends: 3998 [2022-11-18 20:11:25,045 INFO L226 Difference]: Without dead ends: 3998 [2022-11-18 20:11:25,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:25,049 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:25,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:25,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2022-11-18 20:11:25,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3078. [2022-11-18 20:11:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 3076 states have (on average 3.8198959687906373) internal successors, (11750), 3077 states have internal predecessors, (11750), 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) [2022-11-18 20:11:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 11750 transitions. [2022-11-18 20:11:25,216 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 11750 transitions. Word has length 11 [2022-11-18 20:11:25,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:25,217 INFO L495 AbstractCegarLoop]: Abstraction has 3078 states and 11750 transitions. [2022-11-18 20:11:25,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-18 20:11:25,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 11750 transitions. [2022-11-18 20:11:25,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:11:25,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:25,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:25,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:11:25,227 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:25,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:25,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1521704948, now seen corresponding path program 1 times [2022-11-18 20:11:25,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:25,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873398018] [2022-11-18 20:11:25,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:25,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:26,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:26,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873398018] [2022-11-18 20:11:26,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873398018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:26,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:26,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:11:26,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004142861] [2022-11-18 20:11:26,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:26,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:11:26,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:11:26,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:11:26,007 INFO L87 Difference]: Start difference. First operand 3078 states and 11750 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-11-18 20:11:26,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:26,349 INFO L93 Difference]: Finished difference Result 3094 states and 11506 transitions. [2022-11-18 20:11:26,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:11:26,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:11:26,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:26,382 INFO L225 Difference]: With dead ends: 3094 [2022-11-18 20:11:26,382 INFO L226 Difference]: Without dead ends: 2710 [2022-11-18 20:11:26,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:11:26,384 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 42 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:26,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 56 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:11:26,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2022-11-18 20:11:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 2474. [2022-11-18 20:11:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2472 states have (on average 3.779935275080906) internal successors, (9344), 2473 states have internal predecessors, (9344), 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) [2022-11-18 20:11:26,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 9344 transitions. [2022-11-18 20:11:26,517 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 9344 transitions. Word has length 12 [2022-11-18 20:11:26,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:26,518 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 9344 transitions. [2022-11-18 20:11:26,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-11-18 20:11:26,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 9344 transitions. [2022-11-18 20:11:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:11:26,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:26,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:26,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:11:26,523 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:26,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:26,523 INFO L85 PathProgramCache]: Analyzing trace with hash -153297883, now seen corresponding path program 1 times [2022-11-18 20:11:26,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:26,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813271826] [2022-11-18 20:11:26,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:26,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:26,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:26,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:26,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813271826] [2022-11-18 20:11:26,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813271826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:26,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:26,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:11:26,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043484507] [2022-11-18 20:11:26,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:26,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:11:26,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:26,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:11:26,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:26,690 INFO L87 Difference]: Start difference. First operand 2474 states and 9344 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-18 20:11:26,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:26,821 INFO L93 Difference]: Finished difference Result 2442 states and 9200 transitions. [2022-11-18 20:11:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:11:26,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 20:11:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:26,854 INFO L225 Difference]: With dead ends: 2442 [2022-11-18 20:11:26,854 INFO L226 Difference]: Without dead ends: 2442 [2022-11-18 20:11:26,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:26,855 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:26,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:26,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2022-11-18 20:11:26,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2442. [2022-11-18 20:11:26,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 2440 states have (on average 3.7704918032786887) internal successors, (9200), 2441 states have internal predecessors, (9200), 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) [2022-11-18 20:11:26,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 9200 transitions. [2022-11-18 20:11:26,970 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 9200 transitions. Word has length 13 [2022-11-18 20:11:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:26,970 INFO L495 AbstractCegarLoop]: Abstraction has 2442 states and 9200 transitions. [2022-11-18 20:11:26,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-18 20:11:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 9200 transitions. [2022-11-18 20:11:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:11:26,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:26,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:26,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:11:26,974 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:26,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:26,975 INFO L85 PathProgramCache]: Analyzing trace with hash -457266056, now seen corresponding path program 1 times [2022-11-18 20:11:26,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:26,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143207717] [2022-11-18 20:11:26,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:26,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:29,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:29,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:29,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143207717] [2022-11-18 20:11:29,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143207717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:29,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:29,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:11:29,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638752459] [2022-11-18 20:11:29,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:29,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:11:29,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:29,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:11:29,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:11:29,604 INFO L87 Difference]: Start difference. First operand 2442 states and 9200 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-18 20:11:30,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:30,179 INFO L93 Difference]: Finished difference Result 3754 states and 14016 transitions. [2022-11-18 20:11:30,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:11:30,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:11:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:30,197 INFO L225 Difference]: With dead ends: 3754 [2022-11-18 20:11:30,197 INFO L226 Difference]: Without dead ends: 3426 [2022-11-18 20:11:30,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:11:30,199 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 60 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:30,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 106 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:11:30,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3426 states. [2022-11-18 20:11:30,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3426 to 3202. [2022-11-18 20:11:30,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3202 states, 3200 states have (on average 3.74) internal successors, (11968), 3201 states have internal predecessors, (11968), 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) [2022-11-18 20:11:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3202 states to 3202 states and 11968 transitions. [2022-11-18 20:11:30,328 INFO L78 Accepts]: Start accepts. Automaton has 3202 states and 11968 transitions. Word has length 14 [2022-11-18 20:11:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:30,328 INFO L495 AbstractCegarLoop]: Abstraction has 3202 states and 11968 transitions. [2022-11-18 20:11:30,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-18 20:11:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3202 states and 11968 transitions. [2022-11-18 20:11:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:11:30,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:30,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:30,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:11:30,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:30,332 INFO L85 PathProgramCache]: Analyzing trace with hash -457268862, now seen corresponding path program 1 times [2022-11-18 20:11:30,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:30,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951050249] [2022-11-18 20:11:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:30,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:30,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:30,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951050249] [2022-11-18 20:11:30,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951050249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:30,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:30,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:11:30,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599172849] [2022-11-18 20:11:30,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:30,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:11:30,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:30,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:11:30,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:11:30,594 INFO L87 Difference]: Start difference. First operand 3202 states and 11968 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-18 20:11:30,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:30,751 INFO L93 Difference]: Finished difference Result 3132 states and 10414 transitions. [2022-11-18 20:11:30,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:11:30,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:11:30,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:30,763 INFO L225 Difference]: With dead ends: 3132 [2022-11-18 20:11:30,764 INFO L226 Difference]: Without dead ends: 2420 [2022-11-18 20:11:30,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:11:30,765 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 37 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:30,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 15 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:30,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2022-11-18 20:11:30,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2420. [2022-11-18 20:11:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2418 states have (on average 3.3618693134822166) internal successors, (8129), 2419 states have internal predecessors, (8129), 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) [2022-11-18 20:11:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 8129 transitions. [2022-11-18 20:11:30,907 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 8129 transitions. Word has length 14 [2022-11-18 20:11:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:30,907 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 8129 transitions. [2022-11-18 20:11:30,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-18 20:11:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 8129 transitions. [2022-11-18 20:11:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 20:11:30,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:30,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:30,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:11:30,911 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:30,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1677546151, now seen corresponding path program 1 times [2022-11-18 20:11:30,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:30,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425837723] [2022-11-18 20:11:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:30,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:31,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:31,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425837723] [2022-11-18 20:11:31,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425837723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:31,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:31,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:11:31,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334717116] [2022-11-18 20:11:31,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:31,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:11:31,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:31,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:11:31,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:31,143 INFO L87 Difference]: Start difference. First operand 2420 states and 8129 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:31,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:31,256 INFO L93 Difference]: Finished difference Result 3223 states and 10529 transitions. [2022-11-18 20:11:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:11:31,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 20:11:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:31,270 INFO L225 Difference]: With dead ends: 3223 [2022-11-18 20:11:31,271 INFO L226 Difference]: Without dead ends: 2787 [2022-11-18 20:11:31,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:31,272 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:31,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 7 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2022-11-18 20:11:31,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2311. [2022-11-18 20:11:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2311 states, 2309 states have (on average 3.291468168038112) internal successors, (7600), 2310 states have internal predecessors, (7600), 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) [2022-11-18 20:11:31,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 7600 transitions. [2022-11-18 20:11:31,370 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 7600 transitions. Word has length 16 [2022-11-18 20:11:31,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:31,370 INFO L495 AbstractCegarLoop]: Abstraction has 2311 states and 7600 transitions. [2022-11-18 20:11:31,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:31,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 7600 transitions. [2022-11-18 20:11:31,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 20:11:31,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:31,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:31,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:11:31,375 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:31,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:31,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1211434824, now seen corresponding path program 1 times [2022-11-18 20:11:31,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:31,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640784104] [2022-11-18 20:11:31,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:31,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:31,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:31,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:31,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640784104] [2022-11-18 20:11:31,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640784104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:31,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:31,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:11:31,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022948829] [2022-11-18 20:11:31,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:31,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:11:31,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:31,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:11:31,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:11:31,619 INFO L87 Difference]: Start difference. First operand 2311 states and 7600 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:31,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:31,790 INFO L93 Difference]: Finished difference Result 1885 states and 5462 transitions. [2022-11-18 20:11:31,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:11:31,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 20:11:31,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:31,796 INFO L225 Difference]: With dead ends: 1885 [2022-11-18 20:11:31,797 INFO L226 Difference]: Without dead ends: 1424 [2022-11-18 20:11:31,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:11:31,799 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 62 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:31,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 21 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:31,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2022-11-18 20:11:31,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1424. [2022-11-18 20:11:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1422 states have (on average 2.8684950773558366) internal successors, (4079), 1423 states have internal predecessors, (4079), 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) [2022-11-18 20:11:31,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 4079 transitions. [2022-11-18 20:11:31,837 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 4079 transitions. Word has length 16 [2022-11-18 20:11:31,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:31,838 INFO L495 AbstractCegarLoop]: Abstraction has 1424 states and 4079 transitions. [2022-11-18 20:11:31,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:31,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 4079 transitions. [2022-11-18 20:11:31,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:11:31,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:31,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:31,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:11:31,842 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:31,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:31,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2096359814, now seen corresponding path program 1 times [2022-11-18 20:11:31,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:31,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351843139] [2022-11-18 20:11:31,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:31,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:32,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:32,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351843139] [2022-11-18 20:11:32,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351843139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:32,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:32,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:11:32,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712942388] [2022-11-18 20:11:32,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:32,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:11:32,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:32,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:11:32,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:11:32,103 INFO L87 Difference]: Start difference. First operand 1424 states and 4079 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:32,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:32,288 INFO L93 Difference]: Finished difference Result 1176 states and 3213 transitions. [2022-11-18 20:11:32,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:11:32,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-18 20:11:32,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:32,292 INFO L225 Difference]: With dead ends: 1176 [2022-11-18 20:11:32,292 INFO L226 Difference]: Without dead ends: 990 [2022-11-18 20:11:32,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:11:32,293 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 80 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:32,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 24 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:11:32,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-11-18 20:11:32,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2022-11-18 20:11:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 988 states have (on average 2.783400809716599) internal successors, (2750), 989 states have internal predecessors, (2750), 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) [2022-11-18 20:11:32,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 2750 transitions. [2022-11-18 20:11:32,320 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 2750 transitions. Word has length 19 [2022-11-18 20:11:32,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:32,321 INFO L495 AbstractCegarLoop]: Abstraction has 990 states and 2750 transitions. [2022-11-18 20:11:32,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:32,321 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 2750 transitions. [2022-11-18 20:11:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 20:11:32,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:32,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:32,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:11:32,324 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:32,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1027920887, now seen corresponding path program 1 times [2022-11-18 20:11:32,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:32,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248609554] [2022-11-18 20:11:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:32,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:32,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:32,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248609554] [2022-11-18 20:11:32,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248609554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:32,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:32,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:11:32,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586485882] [2022-11-18 20:11:32,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:32,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:11:32,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:32,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:11:32,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:11:32,504 INFO L87 Difference]: Start difference. First operand 990 states and 2750 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-18 20:11:32,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:32,631 INFO L93 Difference]: Finished difference Result 1317 states and 3535 transitions. [2022-11-18 20:11:32,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:11:32,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-18 20:11:32,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:32,636 INFO L225 Difference]: With dead ends: 1317 [2022-11-18 20:11:32,636 INFO L226 Difference]: Without dead ends: 1139 [2022-11-18 20:11:32,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:11:32,637 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:32,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 10 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-11-18 20:11:32,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1018. [2022-11-18 20:11:32,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1016 states have (on average 2.7234251968503935) internal successors, (2767), 1017 states have internal predecessors, (2767), 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) [2022-11-18 20:11:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 2767 transitions. [2022-11-18 20:11:32,666 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 2767 transitions. Word has length 22 [2022-11-18 20:11:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:32,666 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 2767 transitions. [2022-11-18 20:11:32,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-18 20:11:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 2767 transitions. [2022-11-18 20:11:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 20:11:32,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:32,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:32,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:11:32,670 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:32,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:32,670 INFO L85 PathProgramCache]: Analyzing trace with hash 823780486, now seen corresponding path program 1 times [2022-11-18 20:11:32,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:32,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375892005] [2022-11-18 20:11:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:32,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:32,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:32,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375892005] [2022-11-18 20:11:32,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375892005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:32,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:32,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:11:32,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998746549] [2022-11-18 20:11:32,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:32,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:11:32,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:32,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:11:32,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:11:32,866 INFO L87 Difference]: Start difference. First operand 1018 states and 2767 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-18 20:11:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:32,981 INFO L93 Difference]: Finished difference Result 1432 states and 3762 transitions. [2022-11-18 20:11:32,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:11:32,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-18 20:11:32,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:32,986 INFO L225 Difference]: With dead ends: 1432 [2022-11-18 20:11:32,986 INFO L226 Difference]: Without dead ends: 1286 [2022-11-18 20:11:32,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:11:32,987 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 34 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:32,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 13 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:32,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-11-18 20:11:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 954. [2022-11-18 20:11:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 952 states have (on average 2.66281512605042) internal successors, (2535), 953 states have internal predecessors, (2535), 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) [2022-11-18 20:11:33,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 2535 transitions. [2022-11-18 20:11:33,017 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 2535 transitions. Word has length 22 [2022-11-18 20:11:33,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:33,018 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 2535 transitions. [2022-11-18 20:11:33,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2022-11-18 20:11:33,018 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 2535 transitions. [2022-11-18 20:11:33,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 20:11:33,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:33,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:33,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:11:33,021 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:33,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:33,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1064039942, now seen corresponding path program 2 times [2022-11-18 20:11:33,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:33,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277864454] [2022-11-18 20:11:33,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:33,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:33,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:33,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277864454] [2022-11-18 20:11:33,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277864454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:33,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:33,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:11:33,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828702443] [2022-11-18 20:11:33,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:33,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:11:33,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:33,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:11:33,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:11:33,267 INFO L87 Difference]: Start difference. First operand 954 states and 2535 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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) [2022-11-18 20:11:33,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:33,463 INFO L93 Difference]: Finished difference Result 894 states and 2403 transitions. [2022-11-18 20:11:33,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:11:33,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-18 20:11:33,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:33,466 INFO L225 Difference]: With dead ends: 894 [2022-11-18 20:11:33,466 INFO L226 Difference]: Without dead ends: 542 [2022-11-18 20:11:33,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:11:33,467 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 87 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:33,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 24 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:11:33,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-11-18 20:11:33,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 404. [2022-11-18 20:11:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 402 states have (on average 2.6691542288557213) internal successors, (1073), 403 states have internal predecessors, (1073), 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) [2022-11-18 20:11:33,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 1073 transitions. [2022-11-18 20:11:33,478 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 1073 transitions. Word has length 22 [2022-11-18 20:11:33,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:33,479 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 1073 transitions. [2022-11-18 20:11:33,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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) [2022-11-18 20:11:33,479 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 1073 transitions. [2022-11-18 20:11:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:11:33,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:33,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:33,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:11:33,481 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:33,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:33,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1510216269, now seen corresponding path program 1 times [2022-11-18 20:11:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:33,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149128741] [2022-11-18 20:11:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:33,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:34,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:34,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149128741] [2022-11-18 20:11:34,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149128741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:34,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:34,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:11:34,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584490966] [2022-11-18 20:11:34,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:34,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:11:34,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:34,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:11:34,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:11:34,800 INFO L87 Difference]: Start difference. First operand 404 states and 1073 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:35,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:35,185 INFO L93 Difference]: Finished difference Result 564 states and 1462 transitions. [2022-11-18 20:11:35,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:11:35,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 20:11:35,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:35,188 INFO L225 Difference]: With dead ends: 564 [2022-11-18 20:11:35,188 INFO L226 Difference]: Without dead ends: 518 [2022-11-18 20:11:35,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:11:35,189 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 55 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:35,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 42 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:11:35,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-11-18 20:11:35,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 376. [2022-11-18 20:11:35,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 374 states have (on average 2.665775401069519) internal successors, (997), 375 states have internal predecessors, (997), 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) [2022-11-18 20:11:35,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 997 transitions. [2022-11-18 20:11:35,201 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 997 transitions. Word has length 25 [2022-11-18 20:11:35,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:35,201 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 997 transitions. [2022-11-18 20:11:35,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 997 transitions. [2022-11-18 20:11:35,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:11:35,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:35,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:35,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:11:35,203 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:35,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:35,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1443871949, now seen corresponding path program 2 times [2022-11-18 20:11:35,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:35,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330167] [2022-11-18 20:11:35,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:35,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:35,280 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:11:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:11:35,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:11:35,393 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:11:35,395 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-18 20:11:35,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-18 20:11:35,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-18 20:11:35,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-18 20:11:35,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-18 20:11:35,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-18 20:11:35,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-18 20:11:35,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-18 20:11:35,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-18 20:11:35,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-18 20:11:35,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-18 20:11:35,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-18 20:11:35,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-18 20:11:35,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-18 20:11:35,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-18 20:11:35,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-18 20:11:35,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:11:35,403 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:35,409 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:11:35,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:11:35,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:11:35 BasicIcfg [2022-11-18 20:11:35,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:11:35,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:11:35,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:11:35,529 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:11:35,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:16" (3/4) ... [2022-11-18 20:11:35,533 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:11:35,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:11:35,533 INFO L158 Benchmark]: Toolchain (without parser) took 20958.38ms. Allocated memory was 117.4MB in the beginning and 513.8MB in the end (delta: 396.4MB). Free memory was 76.0MB in the beginning and 193.9MB in the end (delta: -117.9MB). Peak memory consumption was 277.2MB. Max. memory is 16.1GB. [2022-11-18 20:11:35,534 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:11:35,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.06ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 80.2MB in the end (delta: -4.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-11-18 20:11:35,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.08ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 77.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:11:35,535 INFO L158 Benchmark]: Boogie Preprocessor took 41.74ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 75.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:11:35,536 INFO L158 Benchmark]: RCFGBuilder took 1136.08ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 75.1MB in the beginning and 122.8MB in the end (delta: -47.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-18 20:11:35,536 INFO L158 Benchmark]: TraceAbstraction took 19075.23ms. Allocated memory was 159.4MB in the beginning and 513.8MB in the end (delta: 354.4MB). Free memory was 122.1MB in the beginning and 193.9MB in the end (delta: -71.8MB). Peak memory consumption was 283.3MB. Max. memory is 16.1GB. [2022-11-18 20:11:35,536 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 513.8MB. Free memory is still 193.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:11:35,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.06ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 80.2MB in the end (delta: -4.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.08ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 77.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.74ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 75.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1136.08ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 75.1MB in the beginning and 122.8MB in the end (delta: -47.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 19075.23ms. Allocated memory was 159.4MB in the beginning and 513.8MB in the end (delta: 354.4MB). Free memory was 122.1MB in the beginning and 193.9MB in the end (delta: -71.8MB). Peak memory consumption was 283.3MB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 513.8MB. Free memory is still 193.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 158 PlacesBefore, 54 PlacesAfterwards, 147 TransitionsBefore, 42 TransitionsAfterwards, 3240 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 142 TotalNumberOfCompositions, 8245 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5224, independent: 5028, independent conditional: 0, independent unconditional: 5028, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2581, independent: 2531, independent conditional: 0, independent unconditional: 2531, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2581, independent: 2497, independent conditional: 0, independent unconditional: 2497, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 84, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 294, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5224, independent: 2497, independent conditional: 0, independent unconditional: 2497, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 2581, unknown conditional: 0, unknown unconditional: 2581] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 302, Positive conditional cache size: 0, Positive unconditional cache size: 302, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L740] 0 _Bool z$r_buff1_thd4; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L747] 0 _Bool weak$$choice0; [L745] 0 int z$w_buff1; [L748] 0 _Bool weak$$choice2; [L729] 0 _Bool z$flush_delayed; [L743] 0 int z$w_buff0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L712] 0 int __unbuffered_p1_EAX = 0; [L731] 0 _Bool z$r_buff0_thd0; [L718] 0 int __unbuffered_p3_EBX = 0; [L734] 0 _Bool z$r_buff0_thd3; [L730] 0 int z$mem_tmp; [L735] 0 _Bool z$r_buff0_thd4; [L741] 0 _Bool z$read_delayed; [L720] 0 int a = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L742] 0 int *z$read_delayed_var; [L746] 0 _Bool z$w_buff1_used; [L710] 0 int __unbuffered_cnt = 0; [L722] 0 _Bool main$tmp_guard1; [L721] 0 _Bool main$tmp_guard0; [L744] 0 _Bool z$w_buff0_used; [L716] 0 int __unbuffered_p3_EAX = 0; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L864] 0 pthread_t t469; [L865] FCALL, FORK 0 pthread_create(&t469, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t469, ((void *)0), P0, ((void *)0))=-3, t469={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L866] 0 pthread_t t470; [L867] FCALL, FORK 0 pthread_create(&t470, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t470, ((void *)0), P1, ((void *)0))=-2, t469={5:0}, t470={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L868] 0 pthread_t t471; [L869] FCALL, FORK 0 pthread_create(&t471, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t471, ((void *)0), P2, ((void *)0))=-1, t469={5:0}, t470={6:0}, t471={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L870] 0 pthread_t t472; [L871] FCALL, FORK 0 pthread_create(&t472, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t472, ((void *)0), P3, ((void *)0))=0, t469={5:0}, t470={6:0}, t471={7:0}, t472={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L810] 4 z$w_buff1 = z$w_buff0 [L811] 4 z$w_buff0 = 1 [L812] 4 z$w_buff1_used = z$w_buff0_used [L813] 4 z$w_buff0_used = (_Bool)1 [L814] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L814] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L815] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L816] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L817] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L818] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L819] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L820] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L823] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L824] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L825] 4 z$flush_delayed = weak$$choice2 [L826] 4 z$mem_tmp = z [L827] 4 z = !z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff1) [L828] 4 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)) [L829] 4 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)) [L830] 4 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used)) [L831] 4 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L832] 4 z$r_buff0_thd4 = weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4)) [L833] 4 z$r_buff1_thd4 = weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = z [L835] 4 z = z$flush_delayed ? z$mem_tmp : z [L836] 4 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L839] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L767] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 __unbuffered_p1_EAX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L786] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L787] 3 z$flush_delayed = weak$$choice2 [L788] 3 z$mem_tmp = z [L789] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L790] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L791] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L792] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L793] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L794] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L795] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 __unbuffered_p2_EAX = z [L797] 3 z = z$flush_delayed ? z$mem_tmp : z [L798] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L842] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L843] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L844] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L845] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L846] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L849] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L851] 4 return 0; [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L873] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L875] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L875] RET 0 assume_abort_if_not(main$tmp_guard0) [L877] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L878] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L879] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L880] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L881] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t469={5:0}, t470={6:0}, t471={7:0}, t472={3:0}, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L884] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L886] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 867]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 181 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 18.8s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 525 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 525 mSDsluCounter, 337 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 245 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1890 IncrementalHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 92 mSDtfsCounter, 1890 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3202occurred in iteration=6, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 2589 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 1944 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 20:11:35,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix018.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7349305eeae716fa3a7c11218caa894d6e5121d77db0055a98af7bd7c666586 --- 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-8393723 [2022-11-18 20:11:37,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:11:37,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:11:37,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:11:37,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:11:37,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:11:37,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:11:37,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:11:37,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:11:37,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:11:37,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:11:37,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:11:37,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:11:37,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:11:37,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:11:37,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:11:37,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:11:37,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:11:37,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:11:37,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:11:37,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:11:37,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:11:37,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:11:37,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:11:37,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:11:37,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:11:37,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:11:37,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:11:37,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:11:37,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:11:37,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:11:37,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:11:37,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:11:37,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:11:37,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:11:37,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:11:37,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:11:37,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:11:37,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:11:37,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:11:37,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:11:37,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 20:11:37,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:11:37,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:11:37,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:11:37,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:11:37,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:11:37,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:11:37,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:11:37,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:11:37,859 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:11:37,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:11:37,859 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:11:37,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:11:37,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:11:37,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:11:37,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:11:37,860 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:11:37,860 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:11:37,860 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:11:37,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:11:37,861 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:11:37,861 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:11:37,861 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:11:37,861 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:11:37,862 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:11:37,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:11:37,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:11:37,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:11:37,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:11:37,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:11:37,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:11:37,863 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:11:37,863 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:11:37,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:11:37,864 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7349305eeae716fa3a7c11218caa894d6e5121d77db0055a98af7bd7c666586 [2022-11-18 20:11:38,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:11:38,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:11:38,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:11:38,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:11:38,243 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:11:38,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix018.opt.i [2022-11-18 20:11:38,320 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data/b066e60f0/a96681d382794f8e8ce6c47f8956f0d1/FLAGec22961a4 [2022-11-18 20:11:38,851 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:11:38,852 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/sv-benchmarks/c/pthread-wmm/mix018.opt.i [2022-11-18 20:11:38,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data/b066e60f0/a96681d382794f8e8ce6c47f8956f0d1/FLAGec22961a4 [2022-11-18 20:11:39,140 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/data/b066e60f0/a96681d382794f8e8ce6c47f8956f0d1 [2022-11-18 20:11:39,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:11:39,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:11:39,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:11:39,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:11:39,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:11:39,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dedd4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39, skipping insertion in model container [2022-11-18 20:11:39,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:11:39,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:11:39,441 WARN L234 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_7e489c11-7a7b-4302-8977-d045a4b0a1a8/sv-benchmarks/c/pthread-wmm/mix018.opt.i[944,957] [2022-11-18 20:11:39,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:11:39,750 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:11:39,765 WARN L234 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_7e489c11-7a7b-4302-8977-d045a4b0a1a8/sv-benchmarks/c/pthread-wmm/mix018.opt.i[944,957] [2022-11-18 20:11:39,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:11:39,855 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:11:39,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39 WrapperNode [2022-11-18 20:11:39,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:11:39,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:11:39,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:11:39,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:11:39,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,907 INFO L138 Inliner]: procedures = 180, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 164 [2022-11-18 20:11:39,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:11:39,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:11:39,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:11:39,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:11:39,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,951 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:11:39,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:11:39,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:11:39,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:11:39,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (1/1) ... [2022-11-18 20:11:39,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:11:39,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:40,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:40,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:11:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:11:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:11:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:11:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:11:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 20:11:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 20:11:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:11:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:11:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:11:40,063 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:11:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 20:11:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 20:11:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-18 20:11:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-18 20:11:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:11:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:11:40,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:11:40,066 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:11:40,289 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:11:40,291 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:11:40,782 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:11:41,010 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:11:41,011 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:11:41,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:41 BoogieIcfgContainer [2022-11-18 20:11:41,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:11:41,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:11:41,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:11:41,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:11:41,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:11:39" (1/3) ... [2022-11-18 20:11:41,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628ecd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:11:41, skipping insertion in model container [2022-11-18 20:11:41,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:39" (2/3) ... [2022-11-18 20:11:41,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628ecd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:11:41, skipping insertion in model container [2022-11-18 20:11:41,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:41" (3/3) ... [2022-11-18 20:11:41,026 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018.opt.i [2022-11-18 20:11:41,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:11:41,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-18 20:11:41,050 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:11:41,176 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:11:41,222 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:11:41,237 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-18 20:11:41,239 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-18 20:11:41,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 148 transitions, 316 flow [2022-11-18 20:11:41,300 INFO L130 PetriNetUnfolder]: 2/144 cut-off events. [2022-11-18 20:11:41,300 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:11:41,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 144 events. 2/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-11-18 20:11:41,308 INFO L119 LiptonReduction]: Number of co-enabled transitions 3240 [2022-11-18 20:11:51,141 INFO L134 LiptonReduction]: Checked pairs total: 8057 [2022-11-18 20:11:51,143 INFO L136 LiptonReduction]: Total number of compositions: 146 [2022-11-18 20:11:51,154 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 42 transitions, 104 flow [2022-11-18 20:11:51,403 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 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) [2022-11-18 20:11:51,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:11:51,427 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@67a969c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:11:51,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-18 20:11:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 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) [2022-11-18 20:11:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:11:51,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:51,446 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:11:51,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:51,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:51,451 INFO L85 PathProgramCache]: Analyzing trace with hash 629, now seen corresponding path program 1 times [2022-11-18 20:11:51,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:51,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512620035] [2022-11-18 20:11:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:51,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:51,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:51,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:51,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 20:11:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:51,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:11:51,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:51,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:51,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:11:51,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:11:51,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512620035] [2022-11-18 20:11:51,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512620035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:51,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:51,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:11:51,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720831767] [2022-11-18 20:11:51,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:51,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:11:51,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:11:51,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:11:51,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:11:51,624 INFO L87 Difference]: Start difference. First operand has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-18 20:11:52,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:52,025 INFO L93 Difference]: Finished difference Result 2986 states and 11584 transitions. [2022-11-18 20:11:52,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:11:52,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-18 20:11:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:52,080 INFO L225 Difference]: With dead ends: 2986 [2022-11-18 20:11:52,081 INFO L226 Difference]: Without dead ends: 2986 [2022-11-18 20:11:52,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:11:52,085 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:52,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:52,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-11-18 20:11:52,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2986. [2022-11-18 20:11:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2981 states have (on average 3.8859443139885945) internal successors, (11584), 2985 states have internal predecessors, (11584), 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) [2022-11-18 20:11:52,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 11584 transitions. [2022-11-18 20:11:52,313 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 11584 transitions. Word has length 1 [2022-11-18 20:11:52,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:52,313 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 11584 transitions. [2022-11-18 20:11:52,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-18 20:11:52,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 11584 transitions. [2022-11-18 20:11:52,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:11:52,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:52,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:52,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:52,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:52,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:52,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:52,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1201710042, now seen corresponding path program 1 times [2022-11-18 20:11:52,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:52,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513069497] [2022-11-18 20:11:52,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:52,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:52,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:52,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:52,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 20:11:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:52,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:11:52,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:52,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:52,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:11:52,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:11:52,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513069497] [2022-11-18 20:11:52,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513069497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:52,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:52,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:11:52,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357223392] [2022-11-18 20:11:52,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:52,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:11:52,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:11:52,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:11:52,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:52,700 INFO L87 Difference]: Start difference. First operand 2986 states and 11584 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:52,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:52,825 INFO L93 Difference]: Finished difference Result 2538 states and 9744 transitions. [2022-11-18 20:11:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:11:52,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:11:52,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:52,845 INFO L225 Difference]: With dead ends: 2538 [2022-11-18 20:11:52,845 INFO L226 Difference]: Without dead ends: 2474 [2022-11-18 20:11:52,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:11:52,847 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:52,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:11:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-18 20:11:52,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-11-18 20:11:52,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2472 states have (on average 3.8576051779935274) internal successors, (9536), 2473 states have internal predecessors, (9536), 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) [2022-11-18 20:11:52,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 9536 transitions. [2022-11-18 20:11:52,993 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 9536 transitions. Word has length 9 [2022-11-18 20:11:52,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:52,994 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 9536 transitions. [2022-11-18 20:11:52,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:52,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 9536 transitions. [2022-11-18 20:11:52,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:11:52,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:52,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:53,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:53,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:53,212 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:53,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:53,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1594722418, now seen corresponding path program 1 times [2022-11-18 20:11:53,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:53,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945595510] [2022-11-18 20:11:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:53,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:53,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:53,215 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:53,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 20:11:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:53,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:11:53,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:53,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:53,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:11:53,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:11:53,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945595510] [2022-11-18 20:11:53,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945595510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:53,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:53,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:11:53,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646678795] [2022-11-18 20:11:53,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:53,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:11:53,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:11:53,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:11:53,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:11:53,410 INFO L87 Difference]: Start difference. First operand 2474 states and 9536 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-18 20:11:53,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:53,614 INFO L93 Difference]: Finished difference Result 2183 states and 7480 transitions. [2022-11-18 20:11:53,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:11:53,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:11:53,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:53,627 INFO L225 Difference]: With dead ends: 2183 [2022-11-18 20:11:53,627 INFO L226 Difference]: Without dead ends: 1799 [2022-11-18 20:11:53,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:11:53,629 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 39 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:53,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 15 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:11:53,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2022-11-18 20:11:53,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2022-11-18 20:11:53,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1797 states have (on average 3.428491930996105) internal successors, (6161), 1798 states have internal predecessors, (6161), 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) [2022-11-18 20:11:53,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 6161 transitions. [2022-11-18 20:11:53,757 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 6161 transitions. Word has length 12 [2022-11-18 20:11:53,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:53,757 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 6161 transitions. [2022-11-18 20:11:53,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-18 20:11:53,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 6161 transitions. [2022-11-18 20:11:53,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:11:53,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:53,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:53,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:53,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:53,978 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:53,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:53,979 INFO L85 PathProgramCache]: Analyzing trace with hash -529120583, now seen corresponding path program 1 times [2022-11-18 20:11:53,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:53,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117991805] [2022-11-18 20:11:53,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:53,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:53,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:53,981 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:53,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 20:11:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:54,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:11:54,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:54,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:11:54,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:11:54,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117991805] [2022-11-18 20:11:54,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117991805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:54,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:54,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:11:54,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17829519] [2022-11-18 20:11:54,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:54,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:11:54,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:11:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:11:54,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:11:54,190 INFO L87 Difference]: Start difference. First operand 1799 states and 6161 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:54,487 INFO L93 Difference]: Finished difference Result 1238 states and 3727 transitions. [2022-11-18 20:11:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:11:54,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 20:11:54,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:54,494 INFO L225 Difference]: With dead ends: 1238 [2022-11-18 20:11:54,494 INFO L226 Difference]: Without dead ends: 989 [2022-11-18 20:11:54,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:11:54,501 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 53 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:54,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 27 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:11:54,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2022-11-18 20:11:54,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2022-11-18 20:11:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 987 states have (on average 2.9594731509625127) internal successors, (2921), 988 states have internal predecessors, (2921), 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) [2022-11-18 20:11:54,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 2921 transitions. [2022-11-18 20:11:54,541 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 2921 transitions. Word has length 15 [2022-11-18 20:11:54,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:54,545 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 2921 transitions. [2022-11-18 20:11:54,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:54,546 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 2921 transitions. [2022-11-18 20:11:54,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 20:11:54,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:54,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:54,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:54,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:54,760 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:54,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:54,761 INFO L85 PathProgramCache]: Analyzing trace with hash 814506807, now seen corresponding path program 1 times [2022-11-18 20:11:54,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:54,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328318048] [2022-11-18 20:11:54,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:54,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:54,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:54,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:54,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 20:11:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:54,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:11:54,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:54,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:54,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:11:54,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:11:54,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328318048] [2022-11-18 20:11:54,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328318048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:54,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:54,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:11:54,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178668886] [2022-11-18 20:11:54,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:54,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:11:54,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:11:54,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:11:54,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:11:54,978 INFO L87 Difference]: Start difference. First operand 989 states and 2921 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-18 20:11:55,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:55,363 INFO L93 Difference]: Finished difference Result 716 states and 2071 transitions. [2022-11-18 20:11:55,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:11:55,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-18 20:11:55,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:55,367 INFO L225 Difference]: With dead ends: 716 [2022-11-18 20:11:55,367 INFO L226 Difference]: Without dead ends: 629 [2022-11-18 20:11:55,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:11:55,368 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 65 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:55,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 48 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:11:55,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-11-18 20:11:55,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2022-11-18 20:11:55,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 627 states have (on average 2.9362041467304625) internal successors, (1841), 628 states have internal predecessors, (1841), 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) [2022-11-18 20:11:55,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1841 transitions. [2022-11-18 20:11:55,389 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1841 transitions. Word has length 18 [2022-11-18 20:11:55,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:55,389 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 1841 transitions. [2022-11-18 20:11:55,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-18 20:11:55,390 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1841 transitions. [2022-11-18 20:11:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 20:11:55,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:55,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:55,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:55,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:55,604 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:55,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:55,605 INFO L85 PathProgramCache]: Analyzing trace with hash -469362040, now seen corresponding path program 1 times [2022-11-18 20:11:55,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:55,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274869317] [2022-11-18 20:11:55,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:55,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:55,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:55,607 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:55,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 20:11:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:55,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:11:55,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:55,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:11:55,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:11:55,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274869317] [2022-11-18 20:11:55,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274869317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:55,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:55,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:11:55,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087286024] [2022-11-18 20:11:55,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:55,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:11:55,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:11:55,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:11:55,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:11:55,837 INFO L87 Difference]: Start difference. First operand 629 states and 1841 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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) [2022-11-18 20:11:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:56,359 INFO L93 Difference]: Finished difference Result 574 states and 1729 transitions. [2022-11-18 20:11:56,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:11:56,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 20:11:56,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:56,363 INFO L225 Difference]: With dead ends: 574 [2022-11-18 20:11:56,363 INFO L226 Difference]: Without dead ends: 559 [2022-11-18 20:11:56,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:11:56,364 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 61 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:56,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 72 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:11:56,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-18 20:11:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2022-11-18 20:11:56,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 557 states have (on average 3.0538599640933572) internal successors, (1701), 558 states have internal predecessors, (1701), 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) [2022-11-18 20:11:56,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1701 transitions. [2022-11-18 20:11:56,382 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1701 transitions. Word has length 21 [2022-11-18 20:11:56,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:56,382 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 1701 transitions. [2022-11-18 20:11:56,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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) [2022-11-18 20:11:56,383 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1701 transitions. [2022-11-18 20:11:56,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:11:56,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:56,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:56,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-18 20:11:56,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:56,597 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:56,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:56,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1282959928, now seen corresponding path program 1 times [2022-11-18 20:11:56,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:56,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439123820] [2022-11-18 20:11:56,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:56,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:56,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:56,599 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:56,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 20:11:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:56,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:11:56,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:57,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:11:57,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:11:57,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439123820] [2022-11-18 20:11:57,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439123820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:57,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:57,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:11:57,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135692585] [2022-11-18 20:11:57,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:57,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:11:57,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:11:57,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:11:57,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:11:57,514 INFO L87 Difference]: Start difference. First operand 559 states and 1701 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:57,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:57,656 INFO L93 Difference]: Finished difference Result 982 states and 2996 transitions. [2022-11-18 20:11:57,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:11:57,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 20:11:57,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:57,663 INFO L225 Difference]: With dead ends: 982 [2022-11-18 20:11:57,663 INFO L226 Difference]: Without dead ends: 982 [2022-11-18 20:11:57,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:11:57,664 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:57,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 33 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 40 Unchecked, 0.1s Time] [2022-11-18 20:11:57,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-11-18 20:11:57,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 814. [2022-11-18 20:11:57,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 812 states have (on average 3.0123152709359604) internal successors, (2446), 813 states have internal predecessors, (2446), 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) [2022-11-18 20:11:57,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 2446 transitions. [2022-11-18 20:11:57,696 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 2446 transitions. Word has length 26 [2022-11-18 20:11:57,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:57,696 INFO L495 AbstractCegarLoop]: Abstraction has 814 states and 2446 transitions. [2022-11-18 20:11:57,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:57,697 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 2446 transitions. [2022-11-18 20:11:57,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:11:57,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:57,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:57,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:57,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:57,913 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:57,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:57,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1282959905, now seen corresponding path program 1 times [2022-11-18 20:11:57,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:57,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900499203] [2022-11-18 20:11:57,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:57,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:57,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:57,917 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:57,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 20:11:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:58,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:11:58,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:58,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:11:58,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:11:58,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900499203] [2022-11-18 20:11:58,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900499203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:58,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:58,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:11:58,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653449363] [2022-11-18 20:11:58,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:58,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:11:58,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:11:58,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:11:58,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:11:58,145 INFO L87 Difference]: Start difference. First operand 814 states and 2446 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:58,380 INFO L93 Difference]: Finished difference Result 962 states and 2857 transitions. [2022-11-18 20:11:58,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:11:58,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 20:11:58,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:58,385 INFO L225 Difference]: With dead ends: 962 [2022-11-18 20:11:58,385 INFO L226 Difference]: Without dead ends: 653 [2022-11-18 20:11:58,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:11:58,386 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:58,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 16 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:11:58,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-11-18 20:11:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 652. [2022-11-18 20:11:58,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 650 states have (on average 2.96) internal successors, (1924), 651 states have internal predecessors, (1924), 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) [2022-11-18 20:11:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1924 transitions. [2022-11-18 20:11:58,411 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1924 transitions. Word has length 26 [2022-11-18 20:11:58,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:58,412 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 1924 transitions. [2022-11-18 20:11:58,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:58,412 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1924 transitions. [2022-11-18 20:11:58,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:11:58,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:58,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:58,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:58,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:58,627 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:58,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1870139468, now seen corresponding path program 2 times [2022-11-18 20:11:58,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:58,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579625309] [2022-11-18 20:11:58,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:11:58,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:58,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:58,630 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:58,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-18 20:11:58,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:11:58,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:11:58,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:11:58,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:59,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:11:59,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:11:59,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579625309] [2022-11-18 20:11:59,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579625309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:59,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:59,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:11:59,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346590608] [2022-11-18 20:11:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:59,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:11:59,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:11:59,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:11:59,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:11:59,450 INFO L87 Difference]: Start difference. First operand 652 states and 1924 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:59,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:11:59,612 INFO L93 Difference]: Finished difference Result 991 states and 2943 transitions. [2022-11-18 20:11:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:11:59,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 20:11:59,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:11:59,617 INFO L225 Difference]: With dead ends: 991 [2022-11-18 20:11:59,617 INFO L226 Difference]: Without dead ends: 628 [2022-11-18 20:11:59,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:11:59,618 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:11:59,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 33 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 36 Unchecked, 0.1s Time] [2022-11-18 20:11:59,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-11-18 20:11:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2022-11-18 20:11:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 626 states have (on average 2.9824281150159746) internal successors, (1867), 627 states have internal predecessors, (1867), 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) [2022-11-18 20:11:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 1867 transitions. [2022-11-18 20:11:59,663 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 1867 transitions. Word has length 26 [2022-11-18 20:11:59,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:11:59,664 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 1867 transitions. [2022-11-18 20:11:59,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 1867 transitions. [2022-11-18 20:11:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:11:59,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:59,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:59,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:59,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:59,881 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:11:59,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:59,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1580206322, now seen corresponding path program 3 times [2022-11-18 20:11:59,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:11:59,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431248695] [2022-11-18 20:11:59,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:11:59,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:11:59,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:11:59,884 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:11:59,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-18 20:12:00,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 20:12:00,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:12:00,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:12:00,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:12:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:00,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:12:00,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:12:00,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431248695] [2022-11-18 20:12:00,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431248695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:00,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:00,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:12:00,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964041746] [2022-11-18 20:12:00,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:00,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:12:00,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:12:00,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:12:00,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:12:00,709 INFO L87 Difference]: Start difference. First operand 628 states and 1867 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:12:00,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:12:00,844 INFO L93 Difference]: Finished difference Result 1078 states and 3187 transitions. [2022-11-18 20:12:00,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:12:00,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 20:12:00,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:12:00,849 INFO L225 Difference]: With dead ends: 1078 [2022-11-18 20:12:00,849 INFO L226 Difference]: Without dead ends: 823 [2022-11-18 20:12:00,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:12:00,850 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:12:00,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 22 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 33 Unchecked, 0.1s Time] [2022-11-18 20:12:00,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-11-18 20:12:00,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 823. [2022-11-18 20:12:00,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 821 states have (on average 2.9171741778319125) internal successors, (2395), 822 states have internal predecessors, (2395), 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) [2022-11-18 20:12:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 2395 transitions. [2022-11-18 20:12:00,878 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 2395 transitions. Word has length 26 [2022-11-18 20:12:00,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:12:00,878 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 2395 transitions. [2022-11-18 20:12:00,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:12:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 2395 transitions. [2022-11-18 20:12:00,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:12:00,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:12:00,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:00,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:12:01,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:12:01,097 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:12:01,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:01,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1434779681, now seen corresponding path program 2 times [2022-11-18 20:12:01,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:12:01,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466637365] [2022-11-18 20:12:01,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:12:01,099 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:12:01,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:12:01,100 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:12:01,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-18 20:12:01,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:12:01,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:12:01,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:12:01,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:12:01,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:01,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:12:01,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:12:01,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466637365] [2022-11-18 20:12:01,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466637365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:01,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:01,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:12:01,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512479116] [2022-11-18 20:12:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:01,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:12:01,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:12:01,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:12:01,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:12:01,320 INFO L87 Difference]: Start difference. First operand 823 states and 2395 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:12:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:12:01,471 INFO L93 Difference]: Finished difference Result 1070 states and 3054 transitions. [2022-11-18 20:12:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:12:01,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 20:12:01,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:12:01,478 INFO L225 Difference]: With dead ends: 1070 [2022-11-18 20:12:01,478 INFO L226 Difference]: Without dead ends: 857 [2022-11-18 20:12:01,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:12:01,479 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:12:01,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 12 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:12:01,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-11-18 20:12:01,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 574. [2022-11-18 20:12:01,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 572 states have (on average 2.9912587412587412) internal successors, (1711), 573 states have internal predecessors, (1711), 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) [2022-11-18 20:12:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 1711 transitions. [2022-11-18 20:12:01,506 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 1711 transitions. Word has length 26 [2022-11-18 20:12:01,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:12:01,507 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 1711 transitions. [2022-11-18 20:12:01,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:12:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 1711 transitions. [2022-11-18 20:12:01,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:12:01,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:12:01,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:01,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:12:01,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:12:01,722 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:12:01,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:01,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1075938810, now seen corresponding path program 4 times [2022-11-18 20:12:01,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:12:01,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693145156] [2022-11-18 20:12:01,723 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:12:01,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:12:01,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:12:01,726 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:12:01,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-18 20:12:01,960 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:12:01,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:12:01,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:12:01,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:12:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:02,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:12:02,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:12:02,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693145156] [2022-11-18 20:12:02,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693145156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:02,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:02,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:12:02,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534584785] [2022-11-18 20:12:02,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:02,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:12:02,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:12:02,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:12:02,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:12:02,553 INFO L87 Difference]: Start difference. First operand 574 states and 1711 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:12:02,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:12:02,639 INFO L93 Difference]: Finished difference Result 573 states and 1709 transitions. [2022-11-18 20:12:02,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:12:02,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 20:12:02,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:12:02,641 INFO L225 Difference]: With dead ends: 573 [2022-11-18 20:12:02,642 INFO L226 Difference]: Without dead ends: 150 [2022-11-18 20:12:02,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:12:02,642 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:12:02,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 25 Unchecked, 0.1s Time] [2022-11-18 20:12:02,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-18 20:12:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-18 20:12:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 2.4093959731543624) internal successors, (359), 149 states have internal predecessors, (359), 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) [2022-11-18 20:12:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 359 transitions. [2022-11-18 20:12:02,648 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 359 transitions. Word has length 26 [2022-11-18 20:12:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:12:02,648 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 359 transitions. [2022-11-18 20:12:02,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:12:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 359 transitions. [2022-11-18 20:12:02,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:12:02,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:12:02,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:02,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:12:02,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:12:02,850 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:12:02,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:02,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1792986683, now seen corresponding path program 3 times [2022-11-18 20:12:02,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:12:02,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592607755] [2022-11-18 20:12:02,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:12:02,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:12:02,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:12:02,853 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:12:02,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-18 20:12:03,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 20:12:03,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:12:03,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:12:03,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:12:03,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:03,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:12:03,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:12:03,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592607755] [2022-11-18 20:12:03,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592607755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:03,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:03,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:12:03,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391799844] [2022-11-18 20:12:03,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:03,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:12:03,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:12:03,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:12:03,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:12:03,658 INFO L87 Difference]: Start difference. First operand 150 states and 359 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:12:04,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:12:04,018 INFO L93 Difference]: Finished difference Result 193 states and 450 transitions. [2022-11-18 20:12:04,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:12:04,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 20:12:04,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:12:04,022 INFO L225 Difference]: With dead ends: 193 [2022-11-18 20:12:04,022 INFO L226 Difference]: Without dead ends: 110 [2022-11-18 20:12:04,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:12:04,023 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 47 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:12:04,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 32 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:12:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-18 20:12:04,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-11-18 20:12:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 2.1192660550458715) internal successors, (231), 109 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:12:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 231 transitions. [2022-11-18 20:12:04,026 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 231 transitions. Word has length 26 [2022-11-18 20:12:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:12:04,026 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 231 transitions. [2022-11-18 20:12:04,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:12:04,027 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 231 transitions. [2022-11-18 20:12:04,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:12:04,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:12:04,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:04,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:12:04,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:12:04,228 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:12:04,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:04,228 INFO L85 PathProgramCache]: Analyzing trace with hash 883208941, now seen corresponding path program 4 times [2022-11-18 20:12:04,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:12:04,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163962930] [2022-11-18 20:12:04,229 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:12:04,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:12:04,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:12:04,230 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:12:04,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-18 20:12:04,418 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:12:04,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-18 20:12:04,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:12:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:12:04,619 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 20:12:04,619 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:12:04,620 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-18 20:12:04,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-18 20:12:04,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-18 20:12:04,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-18 20:12:04,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-18 20:12:04,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-18 20:12:04,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-18 20:12:04,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-18 20:12:04,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-18 20:12:04,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-18 20:12:04,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-18 20:12:04,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-18 20:12:04,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-18 20:12:04,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-18 20:12:04,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-18 20:12:04,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-18 20:12:04,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:12:04,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:12:04,839 INFO L444 BasicCegarLoop]: Path program histogram: [4, 4, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:04,844 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:12:04,844 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:12:04,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:12:04 BasicIcfg [2022-11-18 20:12:04,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:12:04,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:12:04,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:12:04,939 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:12:04,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:41" (3/4) ... [2022-11-18 20:12:04,954 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:12:04,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:12:04,955 INFO L158 Benchmark]: Toolchain (without parser) took 25808.97ms. Allocated memory was 71.3MB in the beginning and 239.1MB in the end (delta: 167.8MB). Free memory was 52.0MB in the beginning and 160.4MB in the end (delta: -108.3MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2022-11-18 20:12:04,955 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:12:04,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 708.64ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 45.6MB in the end (delta: 6.3MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-11-18 20:12:04,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.37ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 42.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:12:04,956 INFO L158 Benchmark]: Boogie Preprocessor took 59.03ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 40.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:12:04,956 INFO L158 Benchmark]: RCFGBuilder took 1046.27ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 40.5MB in the beginning and 57.2MB in the end (delta: -16.7MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-18 20:12:04,957 INFO L158 Benchmark]: TraceAbstraction took 23919.22ms. Allocated memory was 94.4MB in the beginning and 239.1MB in the end (delta: 144.7MB). Free memory was 56.3MB in the beginning and 160.4MB in the end (delta: -104.0MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2022-11-18 20:12:04,957 INFO L158 Benchmark]: Witness Printer took 16.10ms. Allocated memory is still 239.1MB. Free memory is still 160.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:12:04,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 708.64ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 45.6MB in the end (delta: 6.3MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.37ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 42.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.03ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 40.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1046.27ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 40.5MB in the beginning and 57.2MB in the end (delta: -16.7MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 23919.22ms. Allocated memory was 94.4MB in the beginning and 239.1MB in the end (delta: 144.7MB). Free memory was 56.3MB in the beginning and 160.4MB in the end (delta: -104.0MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * Witness Printer took 16.10ms. Allocated memory is still 239.1MB. Free memory is still 160.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.9s, 159 PlacesBefore, 54 PlacesAfterwards, 148 TransitionsBefore, 42 TransitionsAfterwards, 3240 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 146 TotalNumberOfCompositions, 8057 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5377, independent: 5192, independent conditional: 0, independent unconditional: 5192, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2555, independent: 2512, independent conditional: 0, independent unconditional: 2512, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2555, independent: 2476, independent conditional: 0, independent unconditional: 2476, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 79, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 359, independent: 83, independent conditional: 0, independent unconditional: 83, dependent: 276, dependent conditional: 0, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5377, independent: 2680, independent conditional: 0, independent unconditional: 2680, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 2555, unknown conditional: 0, unknown unconditional: 2555] , Statistics on independence cache: Total cache size (in pairs): 309, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L740] 0 _Bool z$r_buff1_thd4; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L747] 0 _Bool weak$$choice0; [L745] 0 int z$w_buff1; [L748] 0 _Bool weak$$choice2; [L729] 0 _Bool z$flush_delayed; [L743] 0 int z$w_buff0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L712] 0 int __unbuffered_p1_EAX = 0; [L731] 0 _Bool z$r_buff0_thd0; [L718] 0 int __unbuffered_p3_EBX = 0; [L734] 0 _Bool z$r_buff0_thd3; [L730] 0 int z$mem_tmp; [L735] 0 _Bool z$r_buff0_thd4; [L741] 0 _Bool z$read_delayed; [L720] 0 int a = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L742] 0 int *z$read_delayed_var; [L746] 0 _Bool z$w_buff1_used; [L710] 0 int __unbuffered_cnt = 0; [L722] 0 _Bool main$tmp_guard1; [L721] 0 _Bool main$tmp_guard0; [L744] 0 _Bool z$w_buff0_used; [L716] 0 int __unbuffered_p3_EAX = 0; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L864] 0 pthread_t t469; [L865] FCALL, FORK 0 pthread_create(&t469, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t469, ((void *)0), P0, ((void *)0))=0, t469={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L866] 0 pthread_t t470; [L867] FCALL, FORK 0 pthread_create(&t470, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t470, ((void *)0), P1, ((void *)0))=1, t469={3:0}, t470={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L868] 0 pthread_t t471; [L869] FCALL, FORK 0 pthread_create(&t471, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t471, ((void *)0), P2, ((void *)0))=2, t469={3:0}, t470={7:0}, t471={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L870] 0 pthread_t t472; [L871] FCALL, FORK 0 pthread_create(&t472, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t472, ((void *)0), P3, ((void *)0))=3, t469={3:0}, t470={7:0}, t471={11:0}, t472={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L810] 4 z$w_buff1 = z$w_buff0 [L811] 4 z$w_buff0 = 1 [L812] 4 z$w_buff1_used = z$w_buff0_used [L813] 4 z$w_buff0_used = (_Bool)1 [L814] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L814] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L815] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L816] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L817] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L818] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L819] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L820] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L823] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L824] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L825] 4 z$flush_delayed = weak$$choice2 [L826] 4 z$mem_tmp = z [L827] 4 z = !z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff1) [L828] 4 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)) [L829] 4 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)) [L830] 4 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used)) [L831] 4 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L832] 4 z$r_buff0_thd4 = weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4)) [L833] 4 z$r_buff1_thd4 = weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = z [L835] 4 z = z$flush_delayed ? z$mem_tmp : z [L836] 4 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L839] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L767] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L782] 3 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L786] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L787] 3 z$flush_delayed = weak$$choice2 [L788] 3 z$mem_tmp = z [L789] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L790] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L791] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L792] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L793] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L794] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L795] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 __unbuffered_p2_EAX = z [L797] 3 z = z$flush_delayed ? z$mem_tmp : z [L798] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L842] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L843] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L844] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L845] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L846] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L849] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L851] 4 return 0; [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L873] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L875] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L875] RET 0 assume_abort_if_not(main$tmp_guard0) [L877] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L878] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L879] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L880] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L881] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t469={3:0}, t470={7:0}, t471={11:0}, t472={15:0}, weak$$choice0=3, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L884] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L886] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 867]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 182 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 23.6s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 354 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 354 mSDsluCounter, 331 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 134 IncrementalHoareTripleChecker+Unchecked, 241 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1638 IncrementalHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 90 mSDtfsCounter, 1638 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3156occurred in iteration=0, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 452 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 245 ConstructedInterpolants, 70 QuantifiedInterpolants, 5162 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2132 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 20:12:04,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e489c11-7a7b-4302-8977-d045a4b0a1a8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample