./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN --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 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 --- 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-6b4ec56 [2022-11-20 12:48:58,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:48:58,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:48:58,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:48:58,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:48:58,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:48:58,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:48:58,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:48:58,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:48:58,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:48:58,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:48:58,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:48:58,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:48:58,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:48:58,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:48:58,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:48:58,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:48:58,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:48:58,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:48:58,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:48:58,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:48:58,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:48:58,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:48:58,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:48:58,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:48:58,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:48:58,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:48:58,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:48:58,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:48:58,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:48:58,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:48:58,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:48:58,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:48:58,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:48:58,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:48:58,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:48:58,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:48:58,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:48:58,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:48:58,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:48:58,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:48:58,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 12:48:58,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:48:58,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:48:58,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:48:58,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:48:58,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:48:58,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:48:58,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:48:58,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:48:58,166 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:48:58,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:48:58,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:48:58,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:48:58,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:48:58,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:48:58,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:48:58,168 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:48:58,169 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:48:58,169 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:48:58,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:48:58,170 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:48:58,170 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:48:58,170 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:48:58,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:48:58,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:48:58,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:48:58,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:48:58,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:48:58,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:48:58,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:48:58,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:48:58,174 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_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 [2022-11-20 12:48:58,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:48:58,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:48:58,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:48:58,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:48:58,526 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:48:58,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/safe002_tso.i [2022-11-20 12:49:02,445 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:49:02,832 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:49:02,833 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2022-11-20 12:49:02,850 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/data/478ecc1ca/80582b20ec36463f9c707c82ecd78bbf/FLAG2782835b5 [2022-11-20 12:49:02,872 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/data/478ecc1ca/80582b20ec36463f9c707c82ecd78bbf [2022-11-20 12:49:02,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:49:02,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:49:02,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:02,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:49:02,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:49:02,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:02" (1/1) ... [2022-11-20 12:49:02,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3560e5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:02, skipping insertion in model container [2022-11-20 12:49:02,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:02" (1/1) ... [2022-11-20 12:49:02,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:49:02,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:49:03,145 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_bf43cc59-5da3-43f6-8062-fa951a5ef342/sv-benchmarks/c/pthread-wmm/safe002_tso.i[945,958] [2022-11-20 12:49:03,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:03,466 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:49:03,488 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_bf43cc59-5da3-43f6-8062-fa951a5ef342/sv-benchmarks/c/pthread-wmm/safe002_tso.i[945,958] [2022-11-20 12:49:03,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:03,616 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:49:03,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03 WrapperNode [2022-11-20 12:49:03,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:03,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:49:03,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:49:03,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:49:03,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,716 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-11-20 12:49:03,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:49:03,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:49:03,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:49:03,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:49:03,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:49:03,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:49:03,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:49:03,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:49:03,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (1/1) ... [2022-11-20 12:49:03,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:49:03,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:49:03,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:49:03,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:49:03,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:49:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:49:03,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:49:03,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:49:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:49:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 12:49:03,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 12:49:03,914 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 12:49:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 12:49:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 12:49:03,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 12:49:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:49:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:49:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:49:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:49:03,919 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:49:04,193 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:49:04,196 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:49:04,533 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:49:04,542 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:49:04,543 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:49:04,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:49:04 BoogieIcfgContainer [2022-11-20 12:49:04,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:49:04,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:49:04,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:49:04,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:49:04,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:49:02" (1/3) ... [2022-11-20 12:49:04,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d83c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:49:04, skipping insertion in model container [2022-11-20 12:49:04,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:03" (2/3) ... [2022-11-20 12:49:04,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d83c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:49:04, skipping insertion in model container [2022-11-20 12:49:04,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:49:04" (3/3) ... [2022-11-20 12:49:04,574 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2022-11-20 12:49:04,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:49:04,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 12:49:04,605 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:49:04,675 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:49:04,720 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 12:49:04,743 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 102 transitions, 219 flow [2022-11-20 12:49:04,756 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 102 transitions, 219 flow [2022-11-20 12:49:04,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 102 transitions, 219 flow [2022-11-20 12:49:04,842 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-11-20 12:49:04,842 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:49:04,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 99 events. 2/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-20 12:49:04,852 INFO L119 LiptonReduction]: Number of co-enabled transitions 1800 [2022-11-20 12:49:09,863 INFO L134 LiptonReduction]: Checked pairs total: 3666 [2022-11-20 12:49:09,864 INFO L136 LiptonReduction]: Total number of compositions: 104 [2022-11-20 12:49:09,878 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 28 transitions, 71 flow [2022-11-20 12:49:09,985 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 340 states, 332 states have (on average 2.891566265060241) internal successors, (960), 339 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:10,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:49:10,018 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;@3d66c9f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:49:10,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-20 12:49:10,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 340 states, 332 states have (on average 2.891566265060241) internal successors, (960), 339 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:10,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 12:49:10,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:10,030 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 12:49:10,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:10,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:10,038 INFO L85 PathProgramCache]: Analyzing trace with hash 367, now seen corresponding path program 1 times [2022-11-20 12:49:10,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:10,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293613987] [2022-11-20 12:49:10,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:10,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:10,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:10,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293613987] [2022-11-20 12:49:10,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293613987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:10,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:10,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 12:49:10,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367166311] [2022-11-20 12:49:10,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:10,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:49:10,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:10,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:49:10,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:49:10,242 INFO L87 Difference]: Start difference. First operand has 340 states, 332 states have (on average 2.891566265060241) internal successors, (960), 339 states have internal predecessors, (960), 0 states have call successors, (0), 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) [2022-11-20 12:49:10,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:10,342 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2022-11-20 12:49:10,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:49:10,346 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 [2022-11-20 12:49:10,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:10,376 INFO L225 Difference]: With dead ends: 298 [2022-11-20 12:49:10,377 INFO L226 Difference]: Without dead ends: 298 [2022-11-20 12:49:10,378 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 [2022-11-20 12:49:10,382 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:10,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:49:10,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-11-20 12:49:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2022-11-20 12:49:10,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 296 states have (on average 2.918918918918919) internal successors, (864), 297 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2022-11-20 12:49:10,518 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 1 [2022-11-20 12:49:10,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:10,519 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2022-11-20 12:49:10,524 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) [2022-11-20 12:49:10,526 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2022-11-20 12:49:10,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 12:49:10,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:10,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:10,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:49:10,529 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:10,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:10,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1667175134, now seen corresponding path program 1 times [2022-11-20 12:49:10,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:10,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037130761] [2022-11-20 12:49:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:10,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:11,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:11,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037130761] [2022-11-20 12:49:11,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037130761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:11,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:11,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:49:11,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807295834] [2022-11-20 12:49:11,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:11,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:49:11,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:11,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:49:11,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:49:11,195 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:11,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:11,274 INFO L93 Difference]: Finished difference Result 460 states and 1260 transitions. [2022-11-20 12:49:11,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:49:11,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-11-20 12:49:11,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:11,280 INFO L225 Difference]: With dead ends: 460 [2022-11-20 12:49:11,280 INFO L226 Difference]: Without dead ends: 460 [2022-11-20 12:49:11,281 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 [2022-11-20 12:49:11,282 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:11,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:11,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-11-20 12:49:11,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 370. [2022-11-20 12:49:11,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 368 states have (on average 2.902173913043478) internal successors, (1068), 369 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:11,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1068 transitions. [2022-11-20 12:49:11,311 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1068 transitions. Word has length 8 [2022-11-20 12:49:11,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:11,312 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 1068 transitions. [2022-11-20 12:49:11,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1068 transitions. [2022-11-20 12:49:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 12:49:11,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:11,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:11,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:49:11,315 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:11,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1667175131, now seen corresponding path program 1 times [2022-11-20 12:49:11,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:11,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795983413] [2022-11-20 12:49:11,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:11,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:11,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:11,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:11,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795983413] [2022-11-20 12:49:11,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795983413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:11,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:11,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:49:11,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835189645] [2022-11-20 12:49:11,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:11,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:49:11,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:11,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:49:11,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:49:11,780 INFO L87 Difference]: Start difference. First operand 370 states and 1068 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:11,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:11,933 INFO L93 Difference]: Finished difference Result 342 states and 965 transitions. [2022-11-20 12:49:11,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:49:11,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-11-20 12:49:11,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:11,939 INFO L225 Difference]: With dead ends: 342 [2022-11-20 12:49:11,940 INFO L226 Difference]: Without dead ends: 342 [2022-11-20 12:49:11,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:49:11,945 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:11,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 19 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:11,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-11-20 12:49:11,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 318. [2022-11-20 12:49:11,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 316 states have (on average 2.8702531645569622) internal successors, (907), 317 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:11,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 907 transitions. [2022-11-20 12:49:11,975 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 907 transitions. Word has length 8 [2022-11-20 12:49:11,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:11,976 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 907 transitions. [2022-11-20 12:49:11,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 907 transitions. [2022-11-20 12:49:11,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 12:49:11,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:11,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:11,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:49:11,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:11,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:11,984 INFO L85 PathProgramCache]: Analyzing trace with hash -142881222, now seen corresponding path program 1 times [2022-11-20 12:49:11,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:11,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574221627] [2022-11-20 12:49:11,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:11,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:12,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:12,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574221627] [2022-11-20 12:49:12,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574221627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:12,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:12,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:49:12,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479761326] [2022-11-20 12:49:12,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:12,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:49:12,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:12,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:49:12,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:49:12,467 INFO L87 Difference]: Start difference. First operand 318 states and 907 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2022-11-20 12:49:12,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:12,669 INFO L93 Difference]: Finished difference Result 332 states and 877 transitions. [2022-11-20 12:49:12,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:49:12,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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 [2022-11-20 12:49:12,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:12,672 INFO L225 Difference]: With dead ends: 332 [2022-11-20 12:49:12,672 INFO L226 Difference]: Without dead ends: 180 [2022-11-20 12:49:12,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:49:12,673 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 27 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:12,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 23 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:49:12,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-20 12:49:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-11-20 12:49:12,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 2.601123595505618) internal successors, (463), 179 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 463 transitions. [2022-11-20 12:49:12,683 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 463 transitions. Word has length 9 [2022-11-20 12:49:12,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:12,683 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 463 transitions. [2022-11-20 12:49:12,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2022-11-20 12:49:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 463 transitions. [2022-11-20 12:49:12,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:49:12,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:12,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:12,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:49:12,687 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:12,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:12,688 INFO L85 PathProgramCache]: Analyzing trace with hash 139032238, now seen corresponding path program 1 times [2022-11-20 12:49:12,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:12,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925474794] [2022-11-20 12:49:12,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:12,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:13,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:13,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:13,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925474794] [2022-11-20 12:49:13,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925474794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:13,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:13,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:49:13,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331014772] [2022-11-20 12:49:13,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:13,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:49:13,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:13,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:49:13,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:49:13,236 INFO L87 Difference]: Start difference. First operand 180 states and 463 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-11-20 12:49:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:13,335 INFO L93 Difference]: Finished difference Result 156 states and 387 transitions. [2022-11-20 12:49:13,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:49:13,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2022-11-20 12:49:13,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:13,338 INFO L225 Difference]: With dead ends: 156 [2022-11-20 12:49:13,338 INFO L226 Difference]: Without dead ends: 156 [2022-11-20 12:49:13,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:49:13,340 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 16 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:13,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 18 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-20 12:49:13,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-11-20 12:49:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 2.496774193548387) internal successors, (387), 155 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 387 transitions. [2022-11-20 12:49:13,350 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 387 transitions. Word has length 11 [2022-11-20 12:49:13,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:13,350 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 387 transitions. [2022-11-20 12:49:13,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-11-20 12:49:13,351 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 387 transitions. [2022-11-20 12:49:13,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:49:13,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:13,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:13,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:49:13,353 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:13,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:13,354 INFO L85 PathProgramCache]: Analyzing trace with hash 14940653, now seen corresponding path program 1 times [2022-11-20 12:49:13,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:13,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312480924] [2022-11-20 12:49:13,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:13,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:13,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:13,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312480924] [2022-11-20 12:49:13,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312480924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:13,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:13,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:49:13,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353770553] [2022-11-20 12:49:13,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:13,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:49:13,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:13,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:49:13,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:49:13,506 INFO L87 Difference]: Start difference. First operand 156 states and 387 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) [2022-11-20 12:49:13,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:13,577 INFO L93 Difference]: Finished difference Result 176 states and 433 transitions. [2022-11-20 12:49:13,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:49:13,578 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 [2022-11-20 12:49:13,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:13,580 INFO L225 Difference]: With dead ends: 176 [2022-11-20 12:49:13,580 INFO L226 Difference]: Without dead ends: 176 [2022-11-20 12:49:13,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:49:13,582 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:13,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:13,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-20 12:49:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 152. [2022-11-20 12:49:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 2.4834437086092715) internal successors, (375), 151 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 375 transitions. [2022-11-20 12:49:13,590 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 375 transitions. Word has length 12 [2022-11-20 12:49:13,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:13,590 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 375 transitions. [2022-11-20 12:49:13,591 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) [2022-11-20 12:49:13,591 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 375 transitions. [2022-11-20 12:49:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:49:13,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:13,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:13,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:49:13,593 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:13,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:13,593 INFO L85 PathProgramCache]: Analyzing trace with hash 14987742, now seen corresponding path program 1 times [2022-11-20 12:49:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:13,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879169412] [2022-11-20 12:49:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:13,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:13,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:13,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:13,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879169412] [2022-11-20 12:49:13,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879169412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:13,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:13,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:49:13,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417243682] [2022-11-20 12:49:13,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:13,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:49:13,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:13,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:49:13,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:49:13,740 INFO L87 Difference]: Start difference. First operand 152 states and 375 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-11-20 12:49:13,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:13,814 INFO L93 Difference]: Finished difference Result 146 states and 356 transitions. [2022-11-20 12:49:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:49:13,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 [2022-11-20 12:49:13,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:13,816 INFO L225 Difference]: With dead ends: 146 [2022-11-20 12:49:13,816 INFO L226 Difference]: Without dead ends: 146 [2022-11-20 12:49:13,817 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 [2022-11-20 12:49:13,818 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:13,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:13,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-20 12:49:13,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 134. [2022-11-20 12:49:13,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 2.43609022556391) internal successors, (324), 133 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:13,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 324 transitions. [2022-11-20 12:49:13,825 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 324 transitions. Word has length 12 [2022-11-20 12:49:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:13,826 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 324 transitions. [2022-11-20 12:49:13,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-11-20 12:49:13,826 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 324 transitions. [2022-11-20 12:49:13,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 12:49:13,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:13,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:13,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:49:13,828 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 306908268, now seen corresponding path program 1 times [2022-11-20 12:49:13,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:13,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918820756] [2022-11-20 12:49:13,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:13,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:13,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:13,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918820756] [2022-11-20 12:49:13,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918820756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:13,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:13,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:49:13,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264788634] [2022-11-20 12:49:13,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:13,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:49:13,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:13,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:49:13,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:49:13,992 INFO L87 Difference]: Start difference. First operand 134 states and 324 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2022-11-20 12:49:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:14,061 INFO L93 Difference]: Finished difference Result 194 states and 466 transitions. [2022-11-20 12:49:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:49:14,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2022-11-20 12:49:14,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:14,064 INFO L225 Difference]: With dead ends: 194 [2022-11-20 12:49:14,065 INFO L226 Difference]: Without dead ends: 104 [2022-11-20 12:49:14,065 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 [2022-11-20 12:49:14,070 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:14,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:14,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-20 12:49:14,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-11-20 12:49:14,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 2.3883495145631066) internal successors, (246), 103 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 246 transitions. [2022-11-20 12:49:14,077 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 246 transitions. Word has length 13 [2022-11-20 12:49:14,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:14,077 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 246 transitions. [2022-11-20 12:49:14,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2022-11-20 12:49:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 246 transitions. [2022-11-20 12:49:14,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 12:49:14,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:14,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:14,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:49:14,080 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:14,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:14,081 INFO L85 PathProgramCache]: Analyzing trace with hash 463115996, now seen corresponding path program 2 times [2022-11-20 12:49:14,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:14,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808083716] [2022-11-20 12:49:14,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:14,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:14,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:14,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:14,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808083716] [2022-11-20 12:49:14,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808083716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:14,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:14,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:49:14,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186187423] [2022-11-20 12:49:14,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:14,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:49:14,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:14,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:49:14,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:49:14,288 INFO L87 Difference]: Start difference. First operand 104 states and 246 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2022-11-20 12:49:14,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:14,366 INFO L93 Difference]: Finished difference Result 125 states and 275 transitions. [2022-11-20 12:49:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:49:14,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2022-11-20 12:49:14,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:14,369 INFO L225 Difference]: With dead ends: 125 [2022-11-20 12:49:14,370 INFO L226 Difference]: Without dead ends: 91 [2022-11-20 12:49:14,370 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 [2022-11-20 12:49:14,372 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 18 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:14,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 13 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:14,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-20 12:49:14,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-11-20 12:49:14,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 2.2) internal successors, (198), 90 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 198 transitions. [2022-11-20 12:49:14,378 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 198 transitions. Word has length 13 [2022-11-20 12:49:14,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:14,379 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 198 transitions. [2022-11-20 12:49:14,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2022-11-20 12:49:14,379 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 198 transitions. [2022-11-20 12:49:14,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:49:14,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:14,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:14,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:49:14,381 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:14,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:14,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1471668961, now seen corresponding path program 1 times [2022-11-20 12:49:14,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:14,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587168327] [2022-11-20 12:49:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:14,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:14,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:14,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:14,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587168327] [2022-11-20 12:49:14,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587168327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:14,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:14,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:49:14,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858007871] [2022-11-20 12:49:14,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:14,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:49:14,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:14,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:49:14,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:49:14,570 INFO L87 Difference]: Start difference. First operand 91 states and 198 transitions. Second operand has 5 states, 4 states have (on average 3.5) 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) [2022-11-20 12:49:14,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:14,662 INFO L93 Difference]: Finished difference Result 94 states and 190 transitions. [2022-11-20 12:49:14,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:49:14,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) 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 [2022-11-20 12:49:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:14,664 INFO L225 Difference]: With dead ends: 94 [2022-11-20 12:49:14,664 INFO L226 Difference]: Without dead ends: 71 [2022-11-20 12:49:14,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:49:14,665 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 32 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:14,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:14,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-20 12:49:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-20 12:49:14,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.9714285714285715) internal successors, (138), 70 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:14,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 138 transitions. [2022-11-20 12:49:14,671 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 138 transitions. Word has length 14 [2022-11-20 12:49:14,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:14,671 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 138 transitions. [2022-11-20 12:49:14,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) 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) [2022-11-20 12:49:14,672 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 138 transitions. [2022-11-20 12:49:14,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 12:49:14,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:14,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:14,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:49:14,673 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:14,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:14,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1622934219, now seen corresponding path program 1 times [2022-11-20 12:49:14,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:14,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588104192] [2022-11-20 12:49:14,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:14,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:14,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:14,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588104192] [2022-11-20 12:49:14,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588104192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:14,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:14,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:49:14,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300488651] [2022-11-20 12:49:14,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:14,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:49:14,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:14,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:49:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:49:14,851 INFO L87 Difference]: Start difference. First operand 71 states and 138 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-20 12:49:14,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:14,954 INFO L93 Difference]: Finished difference Result 68 states and 130 transitions. [2022-11-20 12:49:14,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:49:14,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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 [2022-11-20 12:49:14,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:14,956 INFO L225 Difference]: With dead ends: 68 [2022-11-20 12:49:14,956 INFO L226 Difference]: Without dead ends: 60 [2022-11-20 12:49:14,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:49:14,957 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 31 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:14,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 16 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-20 12:49:14,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-20 12:49:14,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.9661016949152543) internal successors, (116), 59 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:14,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 116 transitions. [2022-11-20 12:49:14,962 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 116 transitions. Word has length 15 [2022-11-20 12:49:14,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:14,962 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 116 transitions. [2022-11-20 12:49:14,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-20 12:49:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 116 transitions. [2022-11-20 12:49:14,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 12:49:14,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:14,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:14,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:49:14,965 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:14,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:14,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1411313026, now seen corresponding path program 1 times [2022-11-20 12:49:14,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:14,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299802717] [2022-11-20 12:49:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:14,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:15,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:15,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299802717] [2022-11-20 12:49:15,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299802717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:15,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:15,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:49:15,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56625922] [2022-11-20 12:49:15,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:15,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:49:15,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:15,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:49:15,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:49:15,197 INFO L87 Difference]: Start difference. First operand 60 states and 116 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) [2022-11-20 12:49:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:15,269 INFO L93 Difference]: Finished difference Result 71 states and 134 transitions. [2022-11-20 12:49:15,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:49:15,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 [2022-11-20 12:49:15,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:15,270 INFO L225 Difference]: With dead ends: 71 [2022-11-20 12:49:15,271 INFO L226 Difference]: Without dead ends: 54 [2022-11-20 12:49:15,271 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 [2022-11-20 12:49:15,272 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:15,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:15,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-20 12:49:15,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2022-11-20 12:49:15,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.8823529411764706) internal successors, (96), 51 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:15,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2022-11-20 12:49:15,277 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 17 [2022-11-20 12:49:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:15,279 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2022-11-20 12:49:15,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) [2022-11-20 12:49:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2022-11-20 12:49:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 12:49:15,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:15,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:15,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:49:15,281 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 12:49:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1344893656, now seen corresponding path program 2 times [2022-11-20 12:49:15,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:15,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055966957] [2022-11-20 12:49:15,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:15,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:15,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055966957] [2022-11-20 12:49:15,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055966957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:15,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:15,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:49:15,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700235273] [2022-11-20 12:49:15,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:15,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:49:15,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:15,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:49:15,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:49:15,482 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand has 5 states, 4 states have (on average 4.25) 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) [2022-11-20 12:49:15,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:15,570 INFO L93 Difference]: Finished difference Result 53 states and 98 transitions. [2022-11-20 12:49:15,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:49:15,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) 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 [2022-11-20 12:49:15,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:15,572 INFO L225 Difference]: With dead ends: 53 [2022-11-20 12:49:15,572 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:49:15,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:49:15,573 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 25 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:15,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:49:15,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:49:15,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:49:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:49:15,576 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-20 12:49:15,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:15,576 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:49:15,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) 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) [2022-11-20 12:49:15,577 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:49:15,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:49:15,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-11-20 12:49:15,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-20 12:49:15,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-11-20 12:49:15,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-20 12:49:15,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-20 12:49:15,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-20 12:49:15,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2022-11-20 12:49:15,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2022-11-20 12:49:15,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-11-20 12:49:15,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-11-20 12:49:15,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-11-20 12:49:15,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:49:15,588 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:15,592 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:49:15,592 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:49:15,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:49:15 BasicIcfg [2022-11-20 12:49:15,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:49:15,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:49:15,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:49:15,599 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:49:15,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:49:04" (3/4) ... [2022-11-20 12:49:15,603 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:49:15,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 12:49:15,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 12:49:15,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-20 12:49:15,620 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-20 12:49:15,620 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:49:15,620 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 12:49:15,621 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:49:15,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:49:15,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:49:15,673 INFO L158 Benchmark]: Toolchain (without parser) took 12795.73ms. Allocated memory was 144.7MB in the beginning and 213.9MB in the end (delta: 69.2MB). Free memory was 114.1MB in the beginning and 129.0MB in the end (delta: -14.8MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2022-11-20 12:49:15,673 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:49:15,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.12ms. Allocated memory is still 144.7MB. Free memory was 113.6MB in the beginning and 93.7MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 12:49:15,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.37ms. Allocated memory is still 144.7MB. Free memory was 93.7MB in the beginning and 91.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:49:15,675 INFO L158 Benchmark]: Boogie Preprocessor took 62.76ms. Allocated memory is still 144.7MB. Free memory was 91.8MB in the beginning and 90.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:49:15,676 INFO L158 Benchmark]: RCFGBuilder took 771.19ms. Allocated memory is still 144.7MB. Free memory was 90.2MB in the beginning and 75.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:49:15,676 INFO L158 Benchmark]: TraceAbstraction took 11042.87ms. Allocated memory was 144.7MB in the beginning and 213.9MB in the end (delta: 69.2MB). Free memory was 75.0MB in the beginning and 132.1MB in the end (delta: -57.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-20 12:49:15,677 INFO L158 Benchmark]: Witness Printer took 73.98ms. Allocated memory is still 213.9MB. Free memory was 132.1MB in the beginning and 130.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:49:15,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory is still 67.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.12ms. Allocated memory is still 144.7MB. Free memory was 113.6MB in the beginning and 93.7MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.37ms. Allocated memory is still 144.7MB. Free memory was 93.7MB in the beginning and 91.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.76ms. Allocated memory is still 144.7MB. Free memory was 91.8MB in the beginning and 90.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 771.19ms. Allocated memory is still 144.7MB. Free memory was 90.2MB in the beginning and 75.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11042.87ms. Allocated memory was 144.7MB in the beginning and 213.9MB in the end (delta: 69.2MB). Free memory was 75.0MB in the beginning and 132.1MB in the end (delta: -57.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Witness Printer took 73.98ms. Allocated memory is still 213.9MB. Free memory was 132.1MB in the beginning and 130.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 110 PlacesBefore, 38 PlacesAfterwards, 102 TransitionsBefore, 28 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 104 TotalNumberOfCompositions, 3666 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2390, independent: 2285, independent conditional: 0, independent unconditional: 2285, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1377, independent: 1331, independent conditional: 0, independent unconditional: 1331, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1377, independent: 1323, independent conditional: 0, independent unconditional: 1323, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 219, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2390, independent: 954, independent conditional: 0, independent unconditional: 954, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 1377, unknown conditional: 0, unknown unconditional: 1377] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 125 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 234 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 234 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 673 IncrementalHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 58 mSDtfsCounter, 673 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=2, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 152 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 1209 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:49:15,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf43cc59-5da3-43f6-8062-fa951a5ef342/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE