./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf --- 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-4e7fbc6 [2022-11-23 15:11:22,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:11:22,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:11:22,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:11:22,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:11:22,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:11:22,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:11:22,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:11:22,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:11:22,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:11:22,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:11:22,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:11:22,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:11:22,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:11:22,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:11:22,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:11:22,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:11:22,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:11:22,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:11:22,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:11:22,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:11:22,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:11:22,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:11:22,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:11:22,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:11:22,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:11:22,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:11:22,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:11:22,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:11:22,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:11:22,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:11:22,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:11:22,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:11:22,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:11:22,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:11:22,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:11:22,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:11:22,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:11:22,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:11:22,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:11:22,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:11:22,742 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:11:22,772 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:11:22,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:11:22,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:11:22,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:11:22,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:11:22,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:11:22,774 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:11:22,775 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:11:22,775 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:11:22,775 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:11:22,776 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:11:22,776 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:11:22,776 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:11:22,777 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:11:22,777 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:11:22,777 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:11:22,778 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:11:22,778 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:11:22,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:11:22,779 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:11:22,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:11:22,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:11:22,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:11:22,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:11:22,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:11:22,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:11:22,781 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:11:22,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:11:22,782 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:11:22,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:11:22,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:11:22,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:11:22,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:11:22,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:11:22,784 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:11:22,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:11:22,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:11:22,790 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:11:22,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:11:22,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:11:22,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:11:22,792 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_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2022-11-23 15:11:23,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:11:23,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:11:23,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:11:23,151 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:11:23,152 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:11:23,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2022-11-23 15:11:26,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:11:26,667 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:11:26,668 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2022-11-23 15:11:26,697 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/data/85eeef6de/ca15136ff4e54851ab367821a56fea0a/FLAG3dd798705 [2022-11-23 15:11:26,717 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/data/85eeef6de/ca15136ff4e54851ab367821a56fea0a [2022-11-23 15:11:26,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:11:26,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:11:26,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:11:26,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:11:26,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:11:26,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:26" (1/1) ... [2022-11-23 15:11:26,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c286bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:26, skipping insertion in model container [2022-11-23 15:11:26,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:26" (1/1) ... [2022-11-23 15:11:26,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:11:26,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:11:27,112 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_6480829c-71ea-4302-adbb-2358b5ca78ee/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2022-11-23 15:11:27,118 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_6480829c-71ea-4302-adbb-2358b5ca78ee/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2022-11-23 15:11:27,120 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_6480829c-71ea-4302-adbb-2358b5ca78ee/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2022-11-23 15:11:27,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:11:27,137 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:11:27,190 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_6480829c-71ea-4302-adbb-2358b5ca78ee/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2022-11-23 15:11:27,191 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_6480829c-71ea-4302-adbb-2358b5ca78ee/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2022-11-23 15:11:27,192 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_6480829c-71ea-4302-adbb-2358b5ca78ee/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2022-11-23 15:11:27,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:11:27,226 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:11:27,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27 WrapperNode [2022-11-23 15:11:27,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:11:27,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:11:27,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:11:27,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:11:27,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,292 INFO L138 Inliner]: procedures = 139, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 128 [2022-11-23 15:11:27,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:11:27,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:11:27,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:11:27,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:11:27,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,351 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:11:27,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:11:27,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:11:27,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:11:27,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (1/1) ... [2022-11-23 15:11:27,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:11:27,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:27,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:11:27,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:11:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-11-23 15:11:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-11-23 15:11:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:11:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 15:11:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 15:11:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:11:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:11:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-11-23 15:11:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-11-23 15:11:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:11:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:11:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:11:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:11:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-11-23 15:11:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-11-23 15:11:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:11:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:11:27,619 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:11:27,621 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:11:28,082 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:11:28,191 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:11:28,192 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:11:28,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:28 BoogieIcfgContainer [2022-11-23 15:11:28,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:11:28,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:11:28,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:11:28,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:11:28,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:11:26" (1/3) ... [2022-11-23 15:11:28,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eee8e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:28, skipping insertion in model container [2022-11-23 15:11:28,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:27" (2/3) ... [2022-11-23 15:11:28,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eee8e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:28, skipping insertion in model container [2022-11-23 15:11:28,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:28" (3/3) ... [2022-11-23 15:11:28,205 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2022-11-23 15:11:28,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:11:28,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 15:11:28,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:11:28,285 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@512812b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:11:28,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-23 15:11:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-23 15:11:28,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:11:28,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:28,298 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:28,298 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:11:28,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:28,304 INFO L85 PathProgramCache]: Analyzing trace with hash 2027166430, now seen corresponding path program 1 times [2022-11-23 15:11:28,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:28,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960118311] [2022-11-23 15:11:28,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:28,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:28,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:11:28,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:28,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960118311] [2022-11-23 15:11:28,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960118311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:28,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:28,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:11:28,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950725082] [2022-11-23 15:11:28,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:28,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:11:28,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:28,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:11:28,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:11:28,749 INFO L87 Difference]: Start difference. First operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 15:11:28,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:28,864 INFO L93 Difference]: Finished difference Result 88 states and 112 transitions. [2022-11-23 15:11:28,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:11:28,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2022-11-23 15:11:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:28,880 INFO L225 Difference]: With dead ends: 88 [2022-11-23 15:11:28,880 INFO L226 Difference]: Without dead ends: 47 [2022-11-23 15:11:28,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:11:28,891 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:28,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:11:28,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-23 15:11:28,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-23 15:11:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2) internal successors, (36), 32 states have internal predecessors, (36), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2022-11-23 15:11:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-11-23 15:11:28,951 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 19 [2022-11-23 15:11:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:28,952 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-11-23 15:11:28,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 15:11:28,953 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-11-23 15:11:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 15:11:28,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:28,956 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:28,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:11:28,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:11:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1652159754, now seen corresponding path program 1 times [2022-11-23 15:11:28,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:28,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209198807] [2022-11-23 15:11:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:28,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:29,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:11:29,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:29,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209198807] [2022-11-23 15:11:29,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209198807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:29,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:29,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:11:29,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191079111] [2022-11-23 15:11:29,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:29,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:11:29,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:29,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:11:29,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:11:29,417 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 15:11:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:29,854 INFO L93 Difference]: Finished difference Result 133 states and 173 transitions. [2022-11-23 15:11:29,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:11:29,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2022-11-23 15:11:29,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:29,857 INFO L225 Difference]: With dead ends: 133 [2022-11-23 15:11:29,857 INFO L226 Difference]: Without dead ends: 92 [2022-11-23 15:11:29,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:11:29,859 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 54 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:29,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:11:29,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-23 15:11:29,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 71. [2022-11-23 15:11:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 49 states have internal predecessors, (55), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2022-11-23 15:11:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2022-11-23 15:11:29,894 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 20 [2022-11-23 15:11:29,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:29,894 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2022-11-23 15:11:29,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 15:11:29,895 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2022-11-23 15:11:29,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 15:11:29,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:29,898 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:29,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:11:29,899 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:11:29,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:29,901 INFO L85 PathProgramCache]: Analyzing trace with hash -194427046, now seen corresponding path program 1 times [2022-11-23 15:11:29,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:29,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988667214] [2022-11-23 15:11:29,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:29,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:36,277 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:11:36,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:36,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988667214] [2022-11-23 15:11:36,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988667214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:11:36,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401480836] [2022-11-23 15:11:36,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:36,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:11:36,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:36,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:11:36,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:11:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:36,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 199 conjunts are in the unsatisfiable core [2022-11-23 15:11:36,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:36,863 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:11:36,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:11:37,166 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:11:37,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-23 15:11:37,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 15:11:37,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 15:11:39,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:39,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:39,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:39,651 INFO L321 Elim1Store]: treesize reduction 158, result has 24.0 percent of original size [2022-11-23 15:11:39,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 190 treesize of output 155 [2022-11-23 15:11:39,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:39,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:39,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2022-11-23 15:11:39,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:39,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:39,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 80 [2022-11-23 15:11:39,759 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-23 15:11:39,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2022-11-23 15:11:39,796 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 15:11:39,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 71 [2022-11-23 15:11:39,815 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:11:39,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 74 [2022-11-23 15:11:39,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:39,844 INFO L321 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2022-11-23 15:11:39,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 15:11:39,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-11-23 15:11:41,430 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:11:41,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:44,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401480836] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:11:44,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1141665195] [2022-11-23 15:11:44,594 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-23 15:11:44,594 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:11:44,598 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:11:44,603 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:11:44,604 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:11:44,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 15:11:44,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:11:44,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:11:44,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:11:44,893 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:11:44,895 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:11:45,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:11:45,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:11:45,026 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:11:45,030 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:11:45,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:11:45,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:11:45,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:11:45,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:45,478 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-23 15:11:45,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-23 15:11:45,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:45,571 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-23 15:11:45,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-23 15:11:45,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:45,709 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-23 15:11:45,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-23 15:11:45,768 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:11:45,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-23 15:11:45,791 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:11:45,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-23 15:11:45,835 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:11:45,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-23 15:11:45,857 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:11:45,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-23 15:11:45,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:11:45,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:11:45,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:45,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-23 15:11:45,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:45,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-23 15:11:45,942 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:11:45,944 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:11:46,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:46,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-23 15:11:46,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:11:46,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-23 15:11:46,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:11:46,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 15:11:46,091 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:11:46,093 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:11:46,095 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 15:11:46,373 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 15 for LOIs [2022-11-23 15:11:46,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:11:46,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:11:46,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:11:46,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:11:46,639 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:11:46,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-23 15:11:46,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:11:46,676 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:11:46,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-23 15:11:46,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:11:46,746 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:11:46,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-23 15:11:46,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:11:46,769 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:11:46,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-23 15:11:46,949 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 57 for LOIs [2022-11-23 15:11:47,026 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 30 for LOIs [2022-11-23 15:11:47,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 15:11:47,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 15:11:47,062 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 23 for LOIs [2022-11-23 15:11:47,105 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:11:56,431 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '746#(and (= |mutex_lock_#in~m#1.base| |mutex_lock_~m#1.base|) (= |~#mutexes~0.base| 3) (<= |mutex_lock_~m#1.offset| 0) (<= 0 |mutex_lock_~m#1.offset|) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (= |mutex_lock_#in~m#1.offset| |mutex_lock_~m#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:11:56,432 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:11:56,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:11:56,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 53 [2022-11-23 15:11:56,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909445499] [2022-11-23 15:11:56,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 15:11:56,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-23 15:11:56,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:56,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-23 15:11:56,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=6372, Unknown=19, NotChecked=0, Total=6806 [2022-11-23 15:11:56,437 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand has 53 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 36 states have internal predecessors, (55), 17 states have call successors, (18), 11 states have call predecessors, (18), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-23 15:12:10,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:10,632 INFO L93 Difference]: Finished difference Result 186 states and 237 transitions. [2022-11-23 15:12:10,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-23 15:12:10,633 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 36 states have internal predecessors, (55), 17 states have call successors, (18), 11 states have call predecessors, (18), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 47 [2022-11-23 15:12:10,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:10,639 INFO L225 Difference]: With dead ends: 186 [2022-11-23 15:12:10,639 INFO L226 Difference]: Without dead ends: 119 [2022-11-23 15:12:10,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3159 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=867, Invalid=11543, Unknown=22, NotChecked=0, Total=12432 [2022-11-23 15:12:10,644 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 441 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 173 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:10,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 884 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2314 Invalid, 4 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 15:12:10,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-23 15:12:10,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 80. [2022-11-23 15:12:10,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.196078431372549) internal successors, (61), 56 states have internal predecessors, (61), 15 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (22), 15 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-23 15:12:10,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 98 transitions. [2022-11-23 15:12:10,676 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 98 transitions. Word has length 47 [2022-11-23 15:12:10,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:10,676 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 98 transitions. [2022-11-23 15:12:10,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 36 states have internal predecessors, (55), 17 states have call successors, (18), 11 states have call predecessors, (18), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-23 15:12:10,677 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 98 transitions. [2022-11-23 15:12:10,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-23 15:12:10,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:10,679 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:12:10,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:12:10,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:12:10,885 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:12:10,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:10,886 INFO L85 PathProgramCache]: Analyzing trace with hash -968639607, now seen corresponding path program 1 times [2022-11-23 15:12:10,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:10,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202936841] [2022-11-23 15:12:10,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:10,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:15,657 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:12:15,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:15,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202936841] [2022-11-23 15:12:15,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202936841] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:12:15,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421436333] [2022-11-23 15:12:15,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:15,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:12:15,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:12:15,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:12:15,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6480829c-71ea-4302-adbb-2358b5ca78ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:12:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:15,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 196 conjunts are in the unsatisfiable core [2022-11-23 15:12:15,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:12:16,145 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:12:16,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:12:16,429 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:12:16,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 15:12:16,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 15:12:16,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 15:12:19,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:12:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:12:19,396 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-23 15:12:19,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 259 treesize of output 198 [2022-11-23 15:12:19,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:12:19,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:12:19,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:12:19,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:12:19,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 53 [2022-11-23 15:12:31,749 WARN L233 SmtUtils]: Spent 12.24s on a formula simplification. DAG size of input: 668 DAG size of output: 88 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:12:31,750 INFO L321 Elim1Store]: treesize reduction 4982, result has 3.9 percent of original size [2022-11-23 15:12:31,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 17 new quantified variables, introduced 81 case distinctions, treesize of input 18309 treesize of output 15826 [2022-11-23 15:12:32,690 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 15:12:32,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 11330 treesize of output 10211 [2022-11-23 15:12:33,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:12:33,316 INFO L217 Elim1Store]: Index analysis took 188 ms [2022-11-23 15:12:33,619 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:12:33,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 148 treesize of output 126 [2022-11-23 15:12:34,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 44 [2022-11-23 15:12:34,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 153 [2022-11-23 15:13:00,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 165 [2022-11-23 15:13:02,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:02,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:02,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:02,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:02,907 INFO L321 Elim1Store]: treesize reduction 234, result has 20.7 percent of original size [2022-11-23 15:13:02,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 1655 treesize of output 1907 [2022-11-23 15:13:09,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:09,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:09,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:09,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:09,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:09,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:09,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:09,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:09,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:09,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:09,661 INFO L321 Elim1Store]: treesize reduction 241, result has 34.5 percent of original size [2022-11-23 15:13:09,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2137 treesize of output 177 [2022-11-23 15:13:09,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:09,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:09,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:09,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:09,991 INFO L321 Elim1Store]: treesize reduction 98, result has 8.4 percent of original size [2022-11-23 15:13:09,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 6402 treesize of output 3202 [2022-11-23 15:13:10,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:10,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:10,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:10,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:10,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:10,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:10,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 603 treesize of output 126 [2022-11-23 15:13:12,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14430 treesize of output 14220 [2022-11-23 15:13:13,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:13,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:13,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:13:15,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:15,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:13:18,835 INFO L321 Elim1Store]: treesize reduction 1276, result has 6.7 percent of original size [2022-11-23 15:13:18,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 35645127983917 treesize of output 35643517325226