./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix020.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix020.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a --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 b3c17f675455332f72f7dc385a60a0aa293a9aeb1dd45189023ae89322443476 --- 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-b5237d8 [2022-11-21 16:43:34,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:43:34,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:43:34,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:43:34,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:43:34,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:43:34,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:43:34,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:43:34,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:43:34,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:43:34,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:43:34,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:43:34,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:43:34,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:43:34,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:43:34,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:43:34,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:43:34,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:43:34,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:43:34,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:43:34,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:43:34,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:43:34,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:43:34,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:43:34,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:43:34,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:43:34,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:43:34,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:43:34,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:43:34,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:43:34,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:43:34,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:43:34,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:43:34,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:43:34,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:43:34,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:43:34,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:43:34,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:43:34,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:43:34,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:43:34,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:43:34,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 16:43:34,376 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:43:34,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:43:34,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:43:34,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:43:34,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:43:34,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:43:34,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:43:34,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:43:34,380 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:43:34,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:43:34,382 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:43:34,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:43:34,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:43:34,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:43:34,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:43:34,383 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:43:34,383 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:43:34,383 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:43:34,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:43:34,383 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:43:34,384 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:43:34,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:43:34,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:43:34,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:43:34,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:43:34,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:43:34,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:43:34,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:43:34,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:43:34,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:43:34,386 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_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3c17f675455332f72f7dc385a60a0aa293a9aeb1dd45189023ae89322443476 [2022-11-21 16:43:34,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:43:34,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:43:34,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:43:34,746 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:43:34,746 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:43:34,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix020.opt.i [2022-11-21 16:43:37,923 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:43:38,239 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:43:38,240 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/sv-benchmarks/c/pthread-wmm/mix020.opt.i [2022-11-21 16:43:38,255 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/data/78400880e/737b3b37014f4fa6b6526b7b5780adc9/FLAG65fdcba29 [2022-11-21 16:43:38,270 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/data/78400880e/737b3b37014f4fa6b6526b7b5780adc9 [2022-11-21 16:43:38,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:43:38,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:43:38,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:43:38,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:43:38,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:43:38,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:38,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c20f95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38, skipping insertion in model container [2022-11-21 16:43:38,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:38,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:43:38,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:43:38,514 WARN L237 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_c4335acd-7ea0-4113-9002-070f0d4ea5f2/sv-benchmarks/c/pthread-wmm/mix020.opt.i[944,957] [2022-11-21 16:43:38,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:43:38,800 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:43:38,814 WARN L237 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_c4335acd-7ea0-4113-9002-070f0d4ea5f2/sv-benchmarks/c/pthread-wmm/mix020.opt.i[944,957] [2022-11-21 16:43:38,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:43:38,950 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:43:38,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38 WrapperNode [2022-11-21 16:43:38,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:43:38,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:43:38,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:43:38,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:43:38,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,055 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 163 [2022-11-21 16:43:39,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:43:39,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:43:39,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:43:39,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:43:39,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,114 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:43:39,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:43:39,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:43:39,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:43:39,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (1/1) ... [2022-11-21 16:43:39,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:43:39,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:43:39,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:43:39,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:43:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:43:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:43:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:43:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:43:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:43:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:43:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:43:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:43:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:43:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:43:39,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:43:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 16:43:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 16:43:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:43:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:43:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:43:39,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:43:39,222 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:43:39,404 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:43:39,406 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:43:39,946 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:43:40,145 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:43:40,145 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:43:40,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:43:40 BoogieIcfgContainer [2022-11-21 16:43:40,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:43:40,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:43:40,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:43:40,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:43:40,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:43:38" (1/3) ... [2022-11-21 16:43:40,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5698af7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:43:40, skipping insertion in model container [2022-11-21 16:43:40,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:43:38" (2/3) ... [2022-11-21 16:43:40,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5698af7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:43:40, skipping insertion in model container [2022-11-21 16:43:40,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:43:40" (3/3) ... [2022-11-21 16:43:40,157 INFO L112 eAbstractionObserver]: Analyzing ICFG mix020.opt.i [2022-11-21 16:43:40,178 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:43:40,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-21 16:43:40,178 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:43:40,259 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:43:40,301 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 16:43:40,315 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 147 transitions, 314 flow [2022-11-21 16:43:40,317 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 147 transitions, 314 flow [2022-11-21 16:43:40,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 147 transitions, 314 flow [2022-11-21 16:43:40,402 INFO L130 PetriNetUnfolder]: 2/143 cut-off events. [2022-11-21 16:43:40,403 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:43:40,409 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. [2022-11-21 16:43:40,412 INFO L119 LiptonReduction]: Number of co-enabled transitions 3240 [2022-11-21 16:43:46,320 INFO L134 LiptonReduction]: Checked pairs total: 8063 [2022-11-21 16:43:46,320 INFO L136 LiptonReduction]: Total number of compositions: 142 [2022-11-21 16:43:46,329 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 42 transitions, 104 flow [2022-11-21 16:43:46,523 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) [2022-11-21 16:43:46,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:43:46,548 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;@5ad12d21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:43:46,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-21 16:43:46,562 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) [2022-11-21 16:43:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 16:43:46,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:46,568 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 16:43:46,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:46,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:46,574 INFO L85 PathProgramCache]: Analyzing trace with hash 623, now seen corresponding path program 1 times [2022-11-21 16:43:46,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:46,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061596203] [2022-11-21 16:43:46,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:46,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:46,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:46,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061596203] [2022-11-21 16:43:46,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061596203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:46,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:46,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 16:43:46,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912771311] [2022-11-21 16:43:46,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:46,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:43:46,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:46,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:43:46,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:43:46,786 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) [2022-11-21 16:43:46,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:46,942 INFO L93 Difference]: Finished difference Result 2986 states and 11584 transitions. [2022-11-21 16:43:46,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:43:46,944 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 [2022-11-21 16:43:46,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:46,999 INFO L225 Difference]: With dead ends: 2986 [2022-11-21 16:43:47,000 INFO L226 Difference]: Without dead ends: 2986 [2022-11-21 16:43:47,001 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 [2022-11-21 16:43:47,005 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-11-21 16:43:47,007 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] [2022-11-21 16:43:47,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-11-21 16:43:47,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2986. [2022-11-21 16:43:47,198 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) [2022-11-21 16:43:47,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 11584 transitions. [2022-11-21 16:43:47,219 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 11584 transitions. Word has length 1 [2022-11-21 16:43:47,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:47,220 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 11584 transitions. [2022-11-21 16:43:47,220 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) [2022-11-21 16:43:47,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 11584 transitions. [2022-11-21 16:43:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:43:47,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:47,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:47,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:43:47,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:47,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:47,223 INFO L85 PathProgramCache]: Analyzing trace with hash 676056354, now seen corresponding path program 1 times [2022-11-21 16:43:47,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:47,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764271791] [2022-11-21 16:43:47,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:47,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:47,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:47,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764271791] [2022-11-21 16:43:47,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764271791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:47,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:47,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:43:47,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904009732] [2022-11-21 16:43:47,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:47,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:43:47,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:47,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:43:47,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:43:47,737 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) [2022-11-21 16:43:47,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:47,855 INFO L93 Difference]: Finished difference Result 2538 states and 9744 transitions. [2022-11-21 16:43:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:43:47,856 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 [2022-11-21 16:43:47,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:47,877 INFO L225 Difference]: With dead ends: 2538 [2022-11-21 16:43:47,877 INFO L226 Difference]: Without dead ends: 2474 [2022-11-21 16:43:47,877 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 [2022-11-21 16:43:47,878 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 [2022-11-21 16:43:47,879 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] [2022-11-21 16:43:47,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-21 16:43:48,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-11-21 16:43:48,036 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) [2022-11-21 16:43:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 9536 transitions. [2022-11-21 16:43:48,055 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 9536 transitions. Word has length 9 [2022-11-21 16:43:48,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:48,056 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 9536 transitions. [2022-11-21 16:43:48,057 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) [2022-11-21 16:43:48,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 9536 transitions. [2022-11-21 16:43:48,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:43:48,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:48,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:48,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:43:48,068 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:48,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:48,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1296789246, now seen corresponding path program 1 times [2022-11-21 16:43:48,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:48,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915475745] [2022-11-21 16:43:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:48,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:48,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:48,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:48,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915475745] [2022-11-21 16:43:48,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915475745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:48,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:48,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:43:48,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391934235] [2022-11-21 16:43:48,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:48,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:43:48,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:48,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:43:48,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:43:48,446 INFO L87 Difference]: Start difference. First operand 2474 states and 9536 transitions. Second operand has 4 states, 3 states have (on average 4.0) 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) [2022-11-21 16:43:48,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:48,785 INFO L93 Difference]: Finished difference Result 4730 states and 17488 transitions. [2022-11-21 16:43:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:43:48,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) 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 [2022-11-21 16:43:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:48,821 INFO L225 Difference]: With dead ends: 4730 [2022-11-21 16:43:48,821 INFO L226 Difference]: Without dead ends: 4730 [2022-11-21 16:43:48,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:48,822 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:48,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 12 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:43:48,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4730 states. [2022-11-21 16:43:48,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4730 to 3442. [2022-11-21 16:43:48,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3440 states have (on average 3.8465116279069766) internal successors, (13232), 3441 states have internal predecessors, (13232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 13232 transitions. [2022-11-21 16:43:48,981 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 13232 transitions. Word has length 12 [2022-11-21 16:43:48,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:48,981 INFO L495 AbstractCegarLoop]: Abstraction has 3442 states and 13232 transitions. [2022-11-21 16:43:48,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) 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) [2022-11-21 16:43:48,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 13232 transitions. [2022-11-21 16:43:48,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:43:48,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:48,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:48,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:43:48,984 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:48,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:48,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1296789269, now seen corresponding path program 1 times [2022-11-21 16:43:48,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:48,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912484816] [2022-11-21 16:43:48,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:48,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:49,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:49,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:49,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912484816] [2022-11-21 16:43:49,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912484816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:49,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:49,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:43:49,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520541968] [2022-11-21 16:43:49,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:49,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:43:49,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:49,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:43:49,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:43:49,753 INFO L87 Difference]: Start difference. First operand 3442 states and 13232 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-11-21 16:43:50,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:50,000 INFO L93 Difference]: Finished difference Result 3058 states and 11296 transitions. [2022-11-21 16:43:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:43:50,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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 [2022-11-21 16:43:50,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:50,031 INFO L225 Difference]: With dead ends: 3058 [2022-11-21 16:43:50,031 INFO L226 Difference]: Without dead ends: 2602 [2022-11-21 16:43:50,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:43:50,033 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:50,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 32 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:43:50,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2022-11-21 16:43:50,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2602. [2022-11-21 16:43:50,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2601 states have (on average 3.718569780853518) internal successors, (9672), 2601 states have internal predecessors, (9672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 9672 transitions. [2022-11-21 16:43:50,136 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 9672 transitions. Word has length 12 [2022-11-21 16:43:50,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:50,138 INFO L495 AbstractCegarLoop]: Abstraction has 2602 states and 9672 transitions. [2022-11-21 16:43:50,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-11-21 16:43:50,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 9672 transitions. [2022-11-21 16:43:50,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 16:43:50,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:50,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:50,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:43:50,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:50,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1461857019, now seen corresponding path program 1 times [2022-11-21 16:43:50,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:50,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084176000] [2022-11-21 16:43:50,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:50,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:50,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:50,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084176000] [2022-11-21 16:43:50,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084176000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:50,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:50,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:43:50,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234542112] [2022-11-21 16:43:50,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:50,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:43:50,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:50,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:43:50,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:50,342 INFO L87 Difference]: Start difference. First operand 2602 states and 9672 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-11-21 16:43:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:50,622 INFO L93 Difference]: Finished difference Result 3082 states and 10992 transitions. [2022-11-21 16:43:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:43:50,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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 [2022-11-21 16:43:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:50,647 INFO L225 Difference]: With dead ends: 3082 [2022-11-21 16:43:50,647 INFO L226 Difference]: Without dead ends: 2634 [2022-11-21 16:43:50,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:43:50,649 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 51 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:50,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 22 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:43:50,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2022-11-21 16:43:50,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2146. [2022-11-21 16:43:50,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2146 states, 2145 states have (on average 3.707226107226107) internal successors, (7952), 2145 states have internal predecessors, (7952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:50,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2146 states to 2146 states and 7952 transitions. [2022-11-21 16:43:50,730 INFO L78 Accepts]: Start accepts. Automaton has 2146 states and 7952 transitions. Word has length 13 [2022-11-21 16:43:50,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:50,730 INFO L495 AbstractCegarLoop]: Abstraction has 2146 states and 7952 transitions. [2022-11-21 16:43:50,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-11-21 16:43:50,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2146 states and 7952 transitions. [2022-11-21 16:43:50,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:43:50,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:50,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:50,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:43:50,733 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:50,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:50,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1962605378, now seen corresponding path program 1 times [2022-11-21 16:43:50,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:50,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332069685] [2022-11-21 16:43:50,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:50,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:50,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:50,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:50,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332069685] [2022-11-21 16:43:50,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332069685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:50,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:50,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:43:50,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147879884] [2022-11-21 16:43:50,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:50,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:43:50,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:50,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:43:50,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:43:50,955 INFO L87 Difference]: Start difference. First operand 2146 states and 7952 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) 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) [2022-11-21 16:43:51,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:51,125 INFO L93 Difference]: Finished difference Result 2338 states and 8464 transitions. [2022-11-21 16:43:51,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:43:51,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) 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 [2022-11-21 16:43:51,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:51,136 INFO L225 Difference]: With dead ends: 2338 [2022-11-21 16:43:51,136 INFO L226 Difference]: Without dead ends: 2082 [2022-11-21 16:43:51,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:51,137 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 29 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:51,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:43:51,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2022-11-21 16:43:51,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2022-11-21 16:43:51,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 2081 states have (on average 3.6828447861604996) internal successors, (7664), 2081 states have internal predecessors, (7664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:51,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 7664 transitions. [2022-11-21 16:43:51,211 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 7664 transitions. Word has length 14 [2022-11-21 16:43:51,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:51,212 INFO L495 AbstractCegarLoop]: Abstraction has 2082 states and 7664 transitions. [2022-11-21 16:43:51,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) 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) [2022-11-21 16:43:51,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 7664 transitions. [2022-11-21 16:43:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:43:51,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:51,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:51,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:43:51,216 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:51,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:51,216 INFO L85 PathProgramCache]: Analyzing trace with hash 627320631, now seen corresponding path program 1 times [2022-11-21 16:43:51,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:51,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351698229] [2022-11-21 16:43:51,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:51,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:51,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:51,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351698229] [2022-11-21 16:43:51,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351698229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:51,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:51,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:43:51,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700539] [2022-11-21 16:43:51,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:51,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:43:51,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:51,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:43:51,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:43:51,463 INFO L87 Difference]: Start difference. First operand 2082 states and 7664 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:51,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:51,539 INFO L93 Difference]: Finished difference Result 1636 states and 5438 transitions. [2022-11-21 16:43:51,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:43:51,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-21 16:43:51,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:51,546 INFO L225 Difference]: With dead ends: 1636 [2022-11-21 16:43:51,546 INFO L226 Difference]: Without dead ends: 1636 [2022-11-21 16:43:51,546 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 [2022-11-21 16:43:51,547 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:51,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:43:51,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-11-21 16:43:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1636. [2022-11-21 16:43:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1635 states have (on average 3.325993883792049) internal successors, (5438), 1635 states have internal predecessors, (5438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:51,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 5438 transitions. [2022-11-21 16:43:51,626 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 5438 transitions. Word has length 15 [2022-11-21 16:43:51,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:51,627 INFO L495 AbstractCegarLoop]: Abstraction has 1636 states and 5438 transitions. [2022-11-21 16:43:51,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:51,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 5438 transitions. [2022-11-21 16:43:51,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 16:43:51,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:51,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:51,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:43:51,631 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:51,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:51,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1930380889, now seen corresponding path program 1 times [2022-11-21 16:43:51,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:51,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033305419] [2022-11-21 16:43:51,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:51,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:51,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:51,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033305419] [2022-11-21 16:43:51,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033305419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:51,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:51,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:43:51,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022021609] [2022-11-21 16:43:51,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:51,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:43:51,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:51,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:43:51,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:43:51,896 INFO L87 Difference]: Start difference. First operand 1636 states and 5438 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:51,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:51,996 INFO L93 Difference]: Finished difference Result 1026 states and 3008 transitions. [2022-11-21 16:43:51,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:43:51,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-21 16:43:51,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:52,001 INFO L225 Difference]: With dead ends: 1026 [2022-11-21 16:43:52,001 INFO L226 Difference]: Without dead ends: 1026 [2022-11-21 16:43:52,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:43:52,002 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 39 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:52,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 9 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:43:52,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2022-11-21 16:43:52,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1018. [2022-11-21 16:43:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1017 states have (on average 2.9301868239921336) internal successors, (2980), 1017 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 2980 transitions. [2022-11-21 16:43:52,029 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 2980 transitions. Word has length 17 [2022-11-21 16:43:52,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:52,029 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 2980 transitions. [2022-11-21 16:43:52,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 2980 transitions. [2022-11-21 16:43:52,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 16:43:52,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:52,032 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] [2022-11-21 16:43:52,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:43:52,032 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:52,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1070171041, now seen corresponding path program 1 times [2022-11-21 16:43:52,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:52,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980310909] [2022-11-21 16:43:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:52,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:53,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:53,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980310909] [2022-11-21 16:43:53,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980310909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:53,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:53,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:43:53,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836567280] [2022-11-21 16:43:53,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:53,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:43:53,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:43:53,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:43:53,625 INFO L87 Difference]: Start difference. First operand 1018 states and 2980 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:53,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:53,983 INFO L93 Difference]: Finished difference Result 1355 states and 3778 transitions. [2022-11-21 16:43:53,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:43:53,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 16:43:53,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:53,987 INFO L225 Difference]: With dead ends: 1355 [2022-11-21 16:43:53,988 INFO L226 Difference]: Without dead ends: 1158 [2022-11-21 16:43:53,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:43:53,989 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 74 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:53,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 57 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:43:53,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-11-21 16:43:54,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1028. [2022-11-21 16:43:54,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1027 states have (on average 2.8646543330087635) internal successors, (2942), 1027 states have internal predecessors, (2942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 2942 transitions. [2022-11-21 16:43:54,018 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 2942 transitions. Word has length 20 [2022-11-21 16:43:54,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:54,018 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 2942 transitions. [2022-11-21 16:43:54,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 2942 transitions. [2022-11-21 16:43:54,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 16:43:54,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:54,021 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] [2022-11-21 16:43:54,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:43:54,022 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:54,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:54,022 INFO L85 PathProgramCache]: Analyzing trace with hash -301527629, now seen corresponding path program 2 times [2022-11-21 16:43:54,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:54,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756397424] [2022-11-21 16:43:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:54,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:54,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:54,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:54,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756397424] [2022-11-21 16:43:54,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756397424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:54,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:54,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:43:54,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486731306] [2022-11-21 16:43:54,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:54,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:43:54,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:54,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:43:54,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:54,278 INFO L87 Difference]: Start difference. First operand 1028 states and 2942 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:54,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:54,410 INFO L93 Difference]: Finished difference Result 716 states and 2032 transitions. [2022-11-21 16:43:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:43:54,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 16:43:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:54,414 INFO L225 Difference]: With dead ends: 716 [2022-11-21 16:43:54,414 INFO L226 Difference]: Without dead ends: 716 [2022-11-21 16:43:54,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:54,415 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 51 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:54,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 12 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:43:54,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-11-21 16:43:54,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 676. [2022-11-21 16:43:54,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 675 states have (on average 2.8385185185185184) internal successors, (1916), 675 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 1916 transitions. [2022-11-21 16:43:54,439 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 1916 transitions. Word has length 20 [2022-11-21 16:43:54,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:54,439 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 1916 transitions. [2022-11-21 16:43:54,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 1916 transitions. [2022-11-21 16:43:54,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 16:43:54,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:54,442 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] [2022-11-21 16:43:54,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:43:54,443 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:54,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:54,443 INFO L85 PathProgramCache]: Analyzing trace with hash -630433303, now seen corresponding path program 1 times [2022-11-21 16:43:54,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:54,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394746624] [2022-11-21 16:43:54,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:54,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:54,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:54,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:54,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394746624] [2022-11-21 16:43:54,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394746624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:54,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:54,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:43:54,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613510495] [2022-11-21 16:43:54,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:54,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:43:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:54,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:43:54,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:43:54,667 INFO L87 Difference]: Start difference. First operand 676 states and 1916 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:54,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:54,802 INFO L93 Difference]: Finished difference Result 908 states and 2504 transitions. [2022-11-21 16:43:54,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:43:54,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-11-21 16:43:54,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:54,804 INFO L225 Difference]: With dead ends: 908 [2022-11-21 16:43:54,805 INFO L226 Difference]: Without dead ends: 610 [2022-11-21 16:43:54,805 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 [2022-11-21 16:43:54,805 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 25 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:54,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 14 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:43:54,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-11-21 16:43:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 592. [2022-11-21 16:43:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 591 states have (on average 2.736040609137056) internal successors, (1617), 591 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:54,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1617 transitions. [2022-11-21 16:43:54,821 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1617 transitions. Word has length 23 [2022-11-21 16:43:54,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:54,821 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 1617 transitions. [2022-11-21 16:43:54,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1617 transitions. [2022-11-21 16:43:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 16:43:54,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:54,824 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] [2022-11-21 16:43:54,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:43:54,824 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:54,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:54,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1808466633, now seen corresponding path program 1 times [2022-11-21 16:43:54,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:54,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981517583] [2022-11-21 16:43:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:54,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:55,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:55,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:55,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981517583] [2022-11-21 16:43:55,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981517583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:55,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:55,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:43:55,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049446605] [2022-11-21 16:43:55,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:55,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:43:55,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:43:55,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:43:55,323 INFO L87 Difference]: Start difference. First operand 592 states and 1617 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:55,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:55,460 INFO L93 Difference]: Finished difference Result 542 states and 1520 transitions. [2022-11-21 16:43:55,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:43:55,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-11-21 16:43:55,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:55,461 INFO L225 Difference]: With dead ends: 542 [2022-11-21 16:43:55,462 INFO L226 Difference]: Without dead ends: 318 [2022-11-21 16:43:55,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:43:55,462 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 57 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:55,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 11 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:43:55,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-11-21 16:43:55,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2022-11-21 16:43:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 2.7003154574132493) internal successors, (856), 317 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:55,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 856 transitions. [2022-11-21 16:43:55,470 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 856 transitions. Word has length 23 [2022-11-21 16:43:55,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:55,470 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 856 transitions. [2022-11-21 16:43:55,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:55,470 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 856 transitions. [2022-11-21 16:43:55,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 16:43:55,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:55,472 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] [2022-11-21 16:43:55,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:43:55,473 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:55,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:55,473 INFO L85 PathProgramCache]: Analyzing trace with hash 909647912, now seen corresponding path program 1 times [2022-11-21 16:43:55,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:55,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899660223] [2022-11-21 16:43:55,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:55,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:43:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:43:55,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:43:55,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899660223] [2022-11-21 16:43:55,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899660223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:43:55,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:43:55,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:43:55,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092465998] [2022-11-21 16:43:55,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:43:55,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:43:55,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:43:55,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:43:55,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:43:55,682 INFO L87 Difference]: Start difference. First operand 318 states and 856 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) [2022-11-21 16:43:55,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:43:55,837 INFO L93 Difference]: Finished difference Result 457 states and 1201 transitions. [2022-11-21 16:43:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:43:55,837 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 [2022-11-21 16:43:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:43:55,838 INFO L225 Difference]: With dead ends: 457 [2022-11-21 16:43:55,838 INFO L226 Difference]: Without dead ends: 182 [2022-11-21 16:43:55,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:43:55,839 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 32 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:43:55,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:43:55,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-21 16:43:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-21 16:43:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.3756906077348066) internal successors, (430), 181 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:43:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 430 transitions. [2022-11-21 16:43:55,844 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 430 transitions. Word has length 26 [2022-11-21 16:43:55,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:43:55,844 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 430 transitions. [2022-11-21 16:43:55,844 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) [2022-11-21 16:43:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 430 transitions. [2022-11-21 16:43:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 16:43:55,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:43:55,845 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] [2022-11-21 16:43:55,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:43:55,846 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:43:55,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:43:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash -962870006, now seen corresponding path program 2 times [2022-11-21 16:43:55,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:43:55,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386156763] [2022-11-21 16:43:55,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:43:55,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:43:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:43:55,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:43:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:43:55,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:43:55,966 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:43:55,967 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-21 16:43:55,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-21 16:43:55,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-21 16:43:55,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-21 16:43:55,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-21 16:43:55,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-21 16:43:55,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-21 16:43:55,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-21 16:43:55,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-21 16:43:55,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-21 16:43:55,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-21 16:43:55,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-21 16:43:55,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-21 16:43:55,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-21 16:43:55,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-21 16:43:55,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-21 16:43:55,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:43:55,975 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:43:55,981 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:43:55,981 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:43:56,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:43:56 BasicIcfg [2022-11-21 16:43:56,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:43:56,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:43:56,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:43:56,105 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:43:56,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:43:40" (3/4) ... [2022-11-21 16:43:56,109 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:43:56,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:43:56,109 INFO L158 Benchmark]: Toolchain (without parser) took 17830.14ms. Allocated memory was 159.4MB in the beginning and 406.8MB in the end (delta: 247.5MB). Free memory was 125.6MB in the beginning and 188.0MB in the end (delta: -62.4MB). Peak memory consumption was 187.1MB. Max. memory is 16.1GB. [2022-11-21 16:43:56,110 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 159.4MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:43:56,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.31ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 101.3MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 16:43:56,110 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.96ms. Allocated memory is still 159.4MB. Free memory was 101.3MB in the beginning and 98.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:43:56,111 INFO L158 Benchmark]: Boogie Preprocessor took 61.31ms. Allocated memory is still 159.4MB. Free memory was 98.3MB in the beginning and 96.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:43:56,112 INFO L158 Benchmark]: RCFGBuilder took 1028.16ms. Allocated memory is still 159.4MB. Free memory was 96.4MB in the beginning and 123.9MB in the end (delta: -27.5MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2022-11-21 16:43:56,112 INFO L158 Benchmark]: TraceAbstraction took 15954.44ms. Allocated memory was 159.4MB in the beginning and 406.8MB in the end (delta: 247.5MB). Free memory was 123.3MB in the beginning and 188.0MB in the end (delta: -64.8MB). Peak memory consumption was 181.9MB. Max. memory is 16.1GB. [2022-11-21 16:43:56,112 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 406.8MB. Free memory is still 188.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:43:56,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 159.4MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 670.31ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 101.3MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.96ms. Allocated memory is still 159.4MB. Free memory was 101.3MB in the beginning and 98.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.31ms. Allocated memory is still 159.4MB. Free memory was 98.3MB in the beginning and 96.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1028.16ms. Allocated memory is still 159.4MB. Free memory was 96.4MB in the beginning and 123.9MB in the end (delta: -27.5MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * TraceAbstraction took 15954.44ms. Allocated memory was 159.4MB in the beginning and 406.8MB in the end (delta: 247.5MB). Free memory was 123.3MB in the beginning and 188.0MB in the end (delta: -64.8MB). Peak memory consumption was 181.9MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 406.8MB. Free memory is still 188.0MB. 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: 6.0s, 158 PlacesBefore, 54 PlacesAfterwards, 147 TransitionsBefore, 42 TransitionsAfterwards, 3240 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 142 TotalNumberOfCompositions, 8063 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5470, independent: 5286, independent conditional: 0, independent unconditional: 5286, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2571, independent: 2526, independent conditional: 0, independent unconditional: 2526, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2571, independent: 2494, independent conditional: 0, independent unconditional: 2494, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 77, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 294, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5470, independent: 2760, independent conditional: 0, independent unconditional: 2760, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 2571, unknown conditional: 0, unknown unconditional: 2571] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 303, Positive conditional cache size: 0, Positive unconditional cache size: 303, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, 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: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L864] 0 pthread_t t525; [L865] FCALL, FORK 0 pthread_create(&t525, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_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(&t525, ((void *)0), P0, ((void *)0))=-2, t525={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 t526; [L867] FCALL, FORK 0 pthread_create(&t526, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_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(&t526, ((void *)0), P1, ((void *)0))=-1, t525={5:0}, t526={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 t527; [L869] FCALL, FORK 0 pthread_create(&t527, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_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(&t527, ((void *)0), P2, ((void *)0))=0, t525={5:0}, t526={6:0}, t527={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 t528; [L871] FCALL, FORK 0 pthread_create(&t528, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_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(&t528, ((void *)0), P3, ((void *)0))=1, t525={5:0}, t526={6:0}, t527={7:0}, t528={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$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$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$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = z [L835] 4 z = z$flush_delayed ? z$mem_tmp : z [L836] 4 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L839] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L767] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 weak$$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_p0_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=1, y=2, 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_p0_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=1, y=2, 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; [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$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t525={5:0}, t526={6:0}, t527={7:0}, t528={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, y=2, 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$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L886] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_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=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=2, 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: 15.7s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 447 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 447 mSDsluCounter, 213 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 141 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1370 IncrementalHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 72 mSDtfsCounter, 1370 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3442occurred in iteration=3, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 1972 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 1296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 [2022-11-21 16:43:56,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix020.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a --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 b3c17f675455332f72f7dc385a60a0aa293a9aeb1dd45189023ae89322443476 --- 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-b5237d8 [2022-11-21 16:43:58,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:43:58,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:43:58,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:43:58,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:43:58,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:43:58,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:43:58,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:43:58,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:43:58,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:43:58,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:43:58,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:43:58,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:43:58,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:43:58,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:43:58,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:43:58,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:43:58,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:43:58,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:43:58,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:43:58,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:43:58,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:43:58,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:43:58,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:43:58,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:43:58,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:43:58,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:43:58,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:43:58,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:43:58,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:43:58,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:43:58,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:43:58,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:43:58,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:43:58,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:43:58,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:43:58,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:43:58,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:43:58,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:43:58,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:43:58,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:43:58,859 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-21 16:43:58,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:43:58,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:43:58,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:43:58,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:43:58,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:43:58,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:43:58,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:43:58,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:43:58,887 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:43:58,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:43:58,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:43:58,888 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:43:58,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:43:58,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:43:58,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:43:58,889 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:43:58,889 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:43:58,889 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:43:58,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:43:58,890 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:43:58,890 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:43:58,890 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:43:58,891 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:43:58,891 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:43:58,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:43:58,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:43:58,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:43:58,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:43:58,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:43:58,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:43:58,893 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:43:58,893 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:43:58,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:43:58,893 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_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3c17f675455332f72f7dc385a60a0aa293a9aeb1dd45189023ae89322443476 [2022-11-21 16:43:59,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:43:59,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:43:59,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:43:59,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:43:59,358 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:43:59,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix020.opt.i [2022-11-21 16:44:02,528 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:44:02,879 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:44:02,887 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/sv-benchmarks/c/pthread-wmm/mix020.opt.i [2022-11-21 16:44:02,899 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/data/737e90d91/2b5b39fd423a47db89074f02ba1ddb0c/FLAG0b54b0bd6 [2022-11-21 16:44:03,103 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/data/737e90d91/2b5b39fd423a47db89074f02ba1ddb0c [2022-11-21 16:44:03,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:44:03,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:44:03,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:44:03,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:44:03,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:44:03,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f63e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03, skipping insertion in model container [2022-11-21 16:44:03,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:44:03,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:44:03,346 WARN L237 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_c4335acd-7ea0-4113-9002-070f0d4ea5f2/sv-benchmarks/c/pthread-wmm/mix020.opt.i[944,957] [2022-11-21 16:44:03,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:44:03,714 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:44:03,729 WARN L237 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_c4335acd-7ea0-4113-9002-070f0d4ea5f2/sv-benchmarks/c/pthread-wmm/mix020.opt.i[944,957] [2022-11-21 16:44:03,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:44:03,825 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:44:03,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03 WrapperNode [2022-11-21 16:44:03,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:44:03,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:44:03,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:44:03,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:44:03,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,880 INFO L138 Inliner]: procedures = 180, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 164 [2022-11-21 16:44:03,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:44:03,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:44:03,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:44:03,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:44:03,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,912 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:44:03,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:44:03,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:44:03,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:44:03,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (1/1) ... [2022-11-21 16:44:03,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:44:03,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:44:03,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:44:04,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:44:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:44:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:44:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:44:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:44:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 16:44:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:44:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:44:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:44:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:44:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:44:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:44:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:44:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 16:44:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 16:44:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:44:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:44:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:44:04,041 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:44:04,236 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:44:04,238 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:44:04,757 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:44:05,006 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:44:05,007 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:44:05,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:44:05 BoogieIcfgContainer [2022-11-21 16:44:05,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:44:05,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:44:05,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:44:05,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:44:05,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:44:03" (1/3) ... [2022-11-21 16:44:05,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df95f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:44:05, skipping insertion in model container [2022-11-21 16:44:05,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:44:03" (2/3) ... [2022-11-21 16:44:05,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df95f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:44:05, skipping insertion in model container [2022-11-21 16:44:05,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:44:05" (3/3) ... [2022-11-21 16:44:05,019 INFO L112 eAbstractionObserver]: Analyzing ICFG mix020.opt.i [2022-11-21 16:44:05,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:44:05,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-21 16:44:05,040 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:44:05,142 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:44:05,178 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 16:44:05,215 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-21 16:44:05,226 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-21 16:44:05,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 148 transitions, 316 flow [2022-11-21 16:44:05,312 INFO L130 PetriNetUnfolder]: 2/144 cut-off events. [2022-11-21 16:44:05,312 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:44:05,319 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. [2022-11-21 16:44:05,323 INFO L119 LiptonReduction]: Number of co-enabled transitions 3240 [2022-11-21 16:44:15,429 INFO L134 LiptonReduction]: Checked pairs total: 8269 [2022-11-21 16:44:15,430 INFO L136 LiptonReduction]: Total number of compositions: 141 [2022-11-21 16:44:15,438 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 42 transitions, 104 flow [2022-11-21 16:44:15,691 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) [2022-11-21 16:44:15,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:44:15,727 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;@680f1fd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:44:15,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-21 16:44:15,743 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) [2022-11-21 16:44:15,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 16:44:15,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:15,750 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 16:44:15,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:15,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:15,760 INFO L85 PathProgramCache]: Analyzing trace with hash 623, now seen corresponding path program 1 times [2022-11-21 16:44:15,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:15,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080851158] [2022-11-21 16:44:15,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:44:15,776 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 [2022-11-21 16:44:15,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:15,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:15,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:44:15,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 16:44:15,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:44:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:44:15,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:44:15,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:44:15,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080851158] [2022-11-21 16:44:15,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080851158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:44:15,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:44:15,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 16:44:15,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131987525] [2022-11-21 16:44:15,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:44:15,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:44:15,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:44:15,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:44:15,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:44:15,954 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) [2022-11-21 16:44:16,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:44:16,279 INFO L93 Difference]: Finished difference Result 2986 states and 11584 transitions. [2022-11-21 16:44:16,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:44:16,282 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 [2022-11-21 16:44:16,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:44:16,335 INFO L225 Difference]: With dead ends: 2986 [2022-11-21 16:44:16,335 INFO L226 Difference]: Without dead ends: 2986 [2022-11-21 16:44:16,336 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 [2022-11-21 16:44:16,342 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 [2022-11-21 16:44:16,347 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] [2022-11-21 16:44:16,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-11-21 16:44:16,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2986. [2022-11-21 16:44:16,587 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) [2022-11-21 16:44:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 11584 transitions. [2022-11-21 16:44:16,615 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 11584 transitions. Word has length 1 [2022-11-21 16:44:16,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:44:16,616 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 11584 transitions. [2022-11-21 16:44:16,617 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) [2022-11-21 16:44:16,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 11584 transitions. [2022-11-21 16:44:16,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:44:16,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:16,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:44:16,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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)] Ended with exit code 0 [2022-11-21 16:44:16,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:16,832 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:16,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:16,833 INFO L85 PathProgramCache]: Analyzing trace with hash -196234102, now seen corresponding path program 1 times [2022-11-21 16:44:16,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:16,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946509767] [2022-11-21 16:44:16,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:44:16,834 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 [2022-11-21 16:44:16,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:16,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:16,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:44:16,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:44:16,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:44:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:44:17,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:44:17,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:44:17,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946509767] [2022-11-21 16:44:17,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946509767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:44:17,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:44:17,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:44:17,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100234282] [2022-11-21 16:44:17,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:44:17,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:44:17,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:44:17,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:44:17,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:44:17,005 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) [2022-11-21 16:44:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:44:17,260 INFO L93 Difference]: Finished difference Result 2538 states and 9744 transitions. [2022-11-21 16:44:17,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:44:17,263 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 [2022-11-21 16:44:17,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:44:17,293 INFO L225 Difference]: With dead ends: 2538 [2022-11-21 16:44:17,293 INFO L226 Difference]: Without dead ends: 2474 [2022-11-21 16:44:17,294 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 [2022-11-21 16:44:17,295 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:44:17,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:44:17,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-21 16:44:17,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-11-21 16:44:17,425 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) [2022-11-21 16:44:17,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 9536 transitions. [2022-11-21 16:44:17,450 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 9536 transitions. Word has length 9 [2022-11-21 16:44:17,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:44:17,451 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 9536 transitions. [2022-11-21 16:44:17,452 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) [2022-11-21 16:44:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 9536 transitions. [2022-11-21 16:44:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:44:17,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:17,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:44:17,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:17,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:17,669 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:17,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:17,671 INFO L85 PathProgramCache]: Analyzing trace with hash 397687905, now seen corresponding path program 1 times [2022-11-21 16:44:17,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:17,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418697098] [2022-11-21 16:44:17,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:44:17,673 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 [2022-11-21 16:44:17,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:17,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:17,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:44:17,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:44:17,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:44:18,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:44:18,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:44:18,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:44:18,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418697098] [2022-11-21 16:44:18,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418697098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:44:18,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:44:18,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:44:18,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669393939] [2022-11-21 16:44:18,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:44:18,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:44:18,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:44:18,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:44:18,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:44:18,041 INFO L87 Difference]: Start difference. First operand 2474 states and 9536 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2022-11-21 16:44:18,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:44:18,309 INFO L93 Difference]: Finished difference Result 2183 states and 7480 transitions. [2022-11-21 16:44:18,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:44:18,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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 [2022-11-21 16:44:18,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:44:18,343 INFO L225 Difference]: With dead ends: 2183 [2022-11-21 16:44:18,344 INFO L226 Difference]: Without dead ends: 1799 [2022-11-21 16:44:18,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:44:18,345 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 39 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-11-21 16:44:18,346 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] [2022-11-21 16:44:18,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2022-11-21 16:44:18,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2022-11-21 16:44:18,428 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) [2022-11-21 16:44:18,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 6161 transitions. [2022-11-21 16:44:18,443 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 6161 transitions. Word has length 11 [2022-11-21 16:44:18,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:44:18,443 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 6161 transitions. [2022-11-21 16:44:18,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2022-11-21 16:44:18,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 6161 transitions. [2022-11-21 16:44:18,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:44:18,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:18,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:44:18,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:18,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:18,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:18,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:18,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1828339525, now seen corresponding path program 1 times [2022-11-21 16:44:18,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:18,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500201054] [2022-11-21 16:44:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:44:18,670 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 [2022-11-21 16:44:18,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:18,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:18,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:44:18,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:44:18,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:44:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:44:18,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:44:18,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:44:18,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500201054] [2022-11-21 16:44:18,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500201054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:44:18,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:44:18,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:44:18,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710848830] [2022-11-21 16:44:18,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:44:18,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:44:18,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:44:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:44:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:44:18,871 INFO L87 Difference]: Start difference. First operand 1799 states and 6161 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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) [2022-11-21 16:44:19,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:44:19,161 INFO L93 Difference]: Finished difference Result 1238 states and 3727 transitions. [2022-11-21 16:44:19,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:44:19,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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 [2022-11-21 16:44:19,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:44:19,169 INFO L225 Difference]: With dead ends: 1238 [2022-11-21 16:44:19,169 INFO L226 Difference]: Without dead ends: 989 [2022-11-21 16:44:19,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:44:19,176 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 [2022-11-21 16:44:19,178 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] [2022-11-21 16:44:19,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2022-11-21 16:44:19,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2022-11-21 16:44:19,207 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) [2022-11-21 16:44:19,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 2921 transitions. [2022-11-21 16:44:19,214 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 2921 transitions. Word has length 14 [2022-11-21 16:44:19,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:44:19,220 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 2921 transitions. [2022-11-21 16:44:19,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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) [2022-11-21 16:44:19,220 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 2921 transitions. [2022-11-21 16:44:19,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 16:44:19,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:19,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:44:19,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:19,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:19,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:19,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:19,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1368543365, now seen corresponding path program 1 times [2022-11-21 16:44:19,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:19,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233550386] [2022-11-21 16:44:19,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:44:19,435 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 [2022-11-21 16:44:19,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:19,436 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:19,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:44:19,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:44:19,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:44:19,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:44:19,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:44:19,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:44:19,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233550386] [2022-11-21 16:44:19,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233550386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:44:19,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:44:19,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:44:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344778745] [2022-11-21 16:44:19,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:44:19,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:44:19,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:44:19,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:44:19,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:44:19,677 INFO L87 Difference]: Start difference. First operand 989 states and 2921 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:44:20,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:44:20,049 INFO L93 Difference]: Finished difference Result 716 states and 2071 transitions. [2022-11-21 16:44:20,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:44:20,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-21 16:44:20,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:44:20,054 INFO L225 Difference]: With dead ends: 716 [2022-11-21 16:44:20,054 INFO L226 Difference]: Without dead ends: 629 [2022-11-21 16:44:20,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:44:20,055 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:44:20,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 48 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:44:20,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-11-21 16:44:20,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2022-11-21 16:44:20,073 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) [2022-11-21 16:44:20,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1841 transitions. [2022-11-21 16:44:20,075 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1841 transitions. Word has length 17 [2022-11-21 16:44:20,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:44:20,076 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 1841 transitions. [2022-11-21 16:44:20,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:44:20,076 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1841 transitions. [2022-11-21 16:44:20,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 16:44:20,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:20,078 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] [2022-11-21 16:44:20,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:20,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:20,291 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:20,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:20,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1136689792, now seen corresponding path program 1 times [2022-11-21 16:44:20,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:20,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347422896] [2022-11-21 16:44:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:44:20,292 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 [2022-11-21 16:44:20,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:20,293 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:20,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:44:20,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:44:20,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:44:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:44:20,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:44:20,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:44:20,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347422896] [2022-11-21 16:44:20,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347422896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:44:20,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:44:20,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:44:20,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116890894] [2022-11-21 16:44:20,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:44:20,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:44:20,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:44:20,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:44:20,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:44:20,526 INFO L87 Difference]: Start difference. First operand 629 states and 1841 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:44:20,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:44:21,000 INFO L93 Difference]: Finished difference Result 574 states and 1729 transitions. [2022-11-21 16:44:21,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:44:21,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 16:44:21,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:44:21,004 INFO L225 Difference]: With dead ends: 574 [2022-11-21 16:44:21,004 INFO L226 Difference]: Without dead ends: 559 [2022-11-21 16:44:21,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:44:21,006 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:44:21,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 72 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:44:21,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-21 16:44:21,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2022-11-21 16:44:21,026 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) [2022-11-21 16:44:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1701 transitions. [2022-11-21 16:44:21,028 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1701 transitions. Word has length 20 [2022-11-21 16:44:21,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:44:21,029 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 1701 transitions. [2022-11-21 16:44:21,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:44:21,029 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1701 transitions. [2022-11-21 16:44:21,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 16:44:21,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:21,031 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] [2022-11-21 16:44:21,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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)] Forceful destruction successful, exit code 0 [2022-11-21 16:44:21,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:21,248 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:21,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:21,248 INFO L85 PathProgramCache]: Analyzing trace with hash 726952876, now seen corresponding path program 1 times [2022-11-21 16:44:21,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:21,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282628577] [2022-11-21 16:44:21,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:44:21,250 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 [2022-11-21 16:44:21,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:21,251 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:21,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:44:21,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:44:21,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:44:21,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:44:21,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:44:21,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:44:21,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282628577] [2022-11-21 16:44:21,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282628577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:44:21,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:44:21,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:44:21,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146406659] [2022-11-21 16:44:21,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:44:21,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:44:21,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:44:21,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:44:21,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:44:21,493 INFO L87 Difference]: Start difference. First operand 559 states and 1701 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 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) [2022-11-21 16:44:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:44:21,701 INFO L93 Difference]: Finished difference Result 767 states and 2267 transitions. [2022-11-21 16:44:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:44:21,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 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 [2022-11-21 16:44:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:44:21,707 INFO L225 Difference]: With dead ends: 767 [2022-11-21 16:44:21,708 INFO L226 Difference]: Without dead ends: 767 [2022-11-21 16:44:21,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:44:21,709 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:44:21,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 10 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:44:21,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2022-11-21 16:44:21,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2022-11-21 16:44:21,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 763 states have (on average 2.9698558322411532) internal successors, (2266), 764 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:44:21,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 2266 transitions. [2022-11-21 16:44:21,739 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 2266 transitions. Word has length 25 [2022-11-21 16:44:21,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:44:21,739 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 2266 transitions. [2022-11-21 16:44:21,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 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) [2022-11-21 16:44:21,740 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 2266 transitions. [2022-11-21 16:44:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 16:44:21,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:21,743 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] [2022-11-21 16:44:21,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:21,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:21,959 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:21,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:21,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1927907016, now seen corresponding path program 2 times [2022-11-21 16:44:21,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:21,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839988999] [2022-11-21 16:44:21,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:44:21,960 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 [2022-11-21 16:44:21,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:21,962 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:21,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:22,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:44:22,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:44:22,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:44:22,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:44:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:44:22,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:44:22,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:44:22,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839988999] [2022-11-21 16:44:22,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839988999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:44:22,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:44:22,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:44:22,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119500343] [2022-11-21 16:44:22,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:44:22,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:44:22,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:44:22,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:44:22,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:44:22,142 INFO L87 Difference]: Start difference. First operand 765 states and 2266 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2022-11-21 16:44:22,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:44:22,265 INFO L93 Difference]: Finished difference Result 1059 states and 3053 transitions. [2022-11-21 16:44:22,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:44:22,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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 [2022-11-21 16:44:22,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:44:22,271 INFO L225 Difference]: With dead ends: 1059 [2022-11-21 16:44:22,271 INFO L226 Difference]: Without dead ends: 1059 [2022-11-21 16:44:22,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:44:22,272 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:44:22,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 7 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:44:22,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2022-11-21 16:44:22,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 717. [2022-11-21 16:44:22,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 715 states have (on average 2.965034965034965) internal successors, (2120), 716 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:44:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2120 transitions. [2022-11-21 16:44:22,298 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2120 transitions. Word has length 25 [2022-11-21 16:44:22,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:44:22,298 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 2120 transitions. [2022-11-21 16:44:22,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2022-11-21 16:44:22,299 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2120 transitions. [2022-11-21 16:44:22,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 16:44:22,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:22,301 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] [2022-11-21 16:44:22,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:22,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:22,521 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:22,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:22,521 INFO L85 PathProgramCache]: Analyzing trace with hash -437963822, now seen corresponding path program 3 times [2022-11-21 16:44:22,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:22,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932586567] [2022-11-21 16:44:22,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:44:22,522 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 [2022-11-21 16:44:22,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:22,523 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:22,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:22,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-21 16:44:22,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:44:22,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-21 16:44:22,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:44:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:44:23,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:44:23,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:44:23,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932586567] [2022-11-21 16:44:23,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932586567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:44:23,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:44:23,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:44:23,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879538214] [2022-11-21 16:44:23,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:44:23,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:44:23,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:44:23,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:44:23,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:44:23,399 INFO L87 Difference]: Start difference. First operand 717 states and 2120 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) [2022-11-21 16:44:23,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:44:23,750 INFO L93 Difference]: Finished difference Result 803 states and 2319 transitions. [2022-11-21 16:44:23,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:44:23,751 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 [2022-11-21 16:44:23,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:44:23,755 INFO L225 Difference]: With dead ends: 803 [2022-11-21 16:44:23,755 INFO L226 Difference]: Without dead ends: 803 [2022-11-21 16:44:23,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:44:23,756 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 58 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:44:23,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 35 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:44:23,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2022-11-21 16:44:23,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 697. [2022-11-21 16:44:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 695 states have (on average 2.9755395683453236) internal successors, (2068), 696 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:44:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2068 transitions. [2022-11-21 16:44:23,787 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2068 transitions. Word has length 25 [2022-11-21 16:44:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:44:23,787 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 2068 transitions. [2022-11-21 16:44:23,787 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) [2022-11-21 16:44:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2068 transitions. [2022-11-21 16:44:23,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 16:44:23,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:44:23,790 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] [2022-11-21 16:44:23,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:24,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:24,003 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-21 16:44:24,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:44:24,003 INFO L85 PathProgramCache]: Analyzing trace with hash 2098993618, now seen corresponding path program 4 times [2022-11-21 16:44:24,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:44:24,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915418621] [2022-11-21 16:44:24,004 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 16:44:24,004 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 [2022-11-21 16:44:24,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:44:24,005 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:44:24,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:24,239 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 16:44:24,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-21 16:44:24,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:44:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:44:24,433 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 16:44:24,433 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:44:24,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-21 16:44:24,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-21 16:44:24,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-21 16:44:24,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-21 16:44:24,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-21 16:44:24,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-21 16:44:24,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-21 16:44:24,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-21 16:44:24,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-21 16:44:24,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-21 16:44:24,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-21 16:44:24,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-21 16:44:24,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-21 16:44:24,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-21 16:44:24,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-21 16:44:24,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-21 16:44:24,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:24,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:44:24,660 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2022-11-21 16:44:24,665 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:44:24,666 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:44:24,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:44:24 BasicIcfg [2022-11-21 16:44:24,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:44:24,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:44:24,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:44:24,798 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:44:24,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:44:05" (3/4) ... [2022-11-21 16:44:24,801 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:44:24,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:44:24,803 INFO L158 Benchmark]: Toolchain (without parser) took 21696.91ms. Allocated memory was 67.1MB in the beginning and 195.0MB in the end (delta: 127.9MB). Free memory was 43.9MB in the beginning and 86.6MB in the end (delta: -42.7MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2022-11-21 16:44:24,804 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 52.4MB. Free memory is still 30.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:44:24,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 718.59ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 36.1MB in the end (delta: 7.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 16:44:24,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.65ms. Allocated memory is still 67.1MB. Free memory was 35.8MB in the beginning and 33.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:44:24,805 INFO L158 Benchmark]: Boogie Preprocessor took 36.50ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 30.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:44:24,806 INFO L158 Benchmark]: RCFGBuilder took 1091.31ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 30.9MB in the beginning and 55.1MB in the end (delta: -24.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-21 16:44:24,807 INFO L158 Benchmark]: TraceAbstraction took 19785.06ms. Allocated memory was 81.8MB in the beginning and 195.0MB in the end (delta: 113.2MB). Free memory was 54.4MB in the beginning and 87.6MB in the end (delta: -33.3MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. [2022-11-21 16:44:24,807 INFO L158 Benchmark]: Witness Printer took 5.40ms. Allocated memory is still 195.0MB. Free memory was 87.6MB in the beginning and 86.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:44:24,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 52.4MB. Free memory is still 30.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 718.59ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 36.1MB in the end (delta: 7.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.65ms. Allocated memory is still 67.1MB. Free memory was 35.8MB in the beginning and 33.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.50ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 30.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1091.31ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 30.9MB in the beginning and 55.1MB in the end (delta: -24.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19785.06ms. Allocated memory was 81.8MB in the beginning and 195.0MB in the end (delta: 113.2MB). Free memory was 54.4MB in the beginning and 87.6MB in the end (delta: -33.3MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. * Witness Printer took 5.40ms. Allocated memory is still 195.0MB. Free memory was 87.6MB in the beginning and 86.6MB in the end (delta: 1.0MB). 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: 10.2s, 159 PlacesBefore, 54 PlacesAfterwards, 148 TransitionsBefore, 42 TransitionsAfterwards, 3240 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 141 TotalNumberOfCompositions, 8269 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5249, independent: 5053, independent conditional: 0, independent unconditional: 5053, 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: 2623, independent: 2564, independent conditional: 0, independent unconditional: 2564, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2623, independent: 2530, independent conditional: 0, independent unconditional: 2530, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 93, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 395, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 326, dependent conditional: 0, dependent unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5249, independent: 2489, independent conditional: 0, independent unconditional: 2489, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 2623, unknown conditional: 0, unknown unconditional: 2623] , Statistics on independence cache: Total cache size (in pairs): 328, Positive cache size: 306, Positive conditional cache size: 0, Positive unconditional cache size: 306, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, 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: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L864] 0 pthread_t t525; [L865] FCALL, FORK 0 pthread_create(&t525, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_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(&t525, ((void *)0), P0, ((void *)0))=0, t525={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] [L866] 0 pthread_t t526; [L867] FCALL, FORK 0 pthread_create(&t526, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_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(&t526, ((void *)0), P1, ((void *)0))=1, t525={11:0}, t526={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] [L868] 0 pthread_t t527; [L869] FCALL, FORK 0 pthread_create(&t527, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_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(&t527, ((void *)0), P2, ((void *)0))=2, t525={11:0}, t526={15:0}, t527={9:0}, 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 t528; [L871] FCALL, FORK 0 pthread_create(&t528, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_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(&t528, ((void *)0), P3, ((void *)0))=3, t525={11:0}, t526={15:0}, t527={9:0}, t528={-2147483637:0}, 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$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$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$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = z [L835] 4 z = z$flush_delayed ? z$mem_tmp : z [L836] 4 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L839] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L767] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L770] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L782] 3 y = 2 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice2=2, x=1, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 weak$$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}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_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=1, y=2, 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}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_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=1, y=2, 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; [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$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t525={11:0}, t526={15:0}, t527={9:0}, t528={-2147483637:0}, weak$$choice0=3, weak$$choice2=0, x=1, y=2, 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$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L886] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_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=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=0, x=1, y=2, 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: 19.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 333 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 333 mSDsluCounter, 223 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1345 IncrementalHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 68 mSDtfsCounter, 1345 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3156occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 450 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 558 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1307 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 [2022-11-21 16:44:24,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4335acd-7ea0-4113-9002-070f0d4ea5f2/bin/uautomizer-vX5HgA9Q3a/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