./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:00:36,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:00:36,616 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-12-02 15:00:36,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:00:36,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:00:36,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:00:36,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:00:36,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:00:36,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:00:36,646 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:00:36,647 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:00:36,647 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:00:36,648 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:00:36,648 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:00:36,649 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:00:36,649 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:00:36,650 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:00:36,650 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:00:36,651 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:00:36,651 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:00:36,652 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:00:36,655 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:00:36,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 15:00:36,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 15:00:36,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:00:36,656 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:00:36,657 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:00:36,657 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:00:36,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:00:36,658 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 15:00:36,658 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 15:00:36,659 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 15:00:36,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:00:36,659 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:00:36,659 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:00:36,659 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:00:36,660 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:00:36,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:00:36,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:00:36,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:00:36,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:00:36,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:00:36,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:00:36,661 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:00:36,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:00:36,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:00:36,662 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:00:36,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:00:36,662 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2023-12-02 15:00:36,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:00:36,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:00:36,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:00:36,903 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:00:36,904 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:00:36,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-12-02 15:00:39,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:00:39,908 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:00:39,909 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-12-02 15:00:39,926 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/data/7f6e5b2b4/4b6bfd68d3554ea0b796c4e8e99087eb/FLAG8d95f00dd [2023-12-02 15:00:39,938 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/data/7f6e5b2b4/4b6bfd68d3554ea0b796c4e8e99087eb [2023-12-02 15:00:39,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:00:39,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:00:39,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:00:39,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:00:39,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:00:39,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:39" (1/1) ... [2023-12-02 15:00:39,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2984f68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:39, skipping insertion in model container [2023-12-02 15:00:39,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:39" (1/1) ... [2023-12-02 15:00:40,007 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:00:40,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:00:40,391 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:00:40,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:00:40,485 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:00:40,486 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:00:40,493 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:00:40,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40 WrapperNode [2023-12-02 15:00:40,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:00:40,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:00:40,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:00:40,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:00:40,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,551 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 205 [2023-12-02 15:00:40,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:00:40,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:00:40,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:00:40,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:00:40,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:00:40,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:00:40,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:00:40,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:00:40,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (1/1) ... [2023-12-02 15:00:40,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:00:40,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:00:40,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:00:40,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:00:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:00:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:00:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 15:00:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:00:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:00:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:00:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-02 15:00:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-02 15:00:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-02 15:00:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-02 15:00:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-02 15:00:40,674 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-02 15:00:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-02 15:00:40,674 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-02 15:00:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:00:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 15:00:40,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:00:40,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:00:40,676 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 15:00:40,835 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:00:40,838 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:00:41,295 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:00:41,739 WARN L1821 r$LargeBlockEncoding]: Complex 2:9 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-12-02 15:00:41,826 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:00:41,826 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:00:41,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:41 BoogieIcfgContainer [2023-12-02 15:00:41,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:00:41,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:00:41,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:00:41,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:00:41,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:00:39" (1/3) ... [2023-12-02 15:00:41,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6794df1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:41, skipping insertion in model container [2023-12-02 15:00:41,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:40" (2/3) ... [2023-12-02 15:00:41,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6794df1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:41, skipping insertion in model container [2023-12-02 15:00:41,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:41" (3/3) ... [2023-12-02 15:00:41,837 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2023-12-02 15:00:41,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:00:41,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2023-12-02 15:00:41,858 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 15:00:42,023 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 15:00:42,053 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 106 places, 104 transitions, 224 flow [2023-12-02 15:00:52,245 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 336180 states, 335029 states have (on average 4.978470520462408) internal successors, (1667932), 336179 states have internal predecessors, (1667932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:00:52,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:00:52,278 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;@e5cb907, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:00:52,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2023-12-02 15:00:52,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 336180 states, 335029 states have (on average 4.978470520462408) internal successors, (1667932), 336179 states have internal predecessors, (1667932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:00:52,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 15:00:52,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:00:52,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 15:00:52,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:00:52,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:00:52,779 INFO L85 PathProgramCache]: Analyzing trace with hash 28894, now seen corresponding path program 1 times [2023-12-02 15:00:52,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:00:52,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486337550] [2023-12-02 15:00:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:52,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:00:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:00:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:00:53,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:00:53,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486337550] [2023-12-02 15:00:53,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486337550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:00:53,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:00:53,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:00:53,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496201051] [2023-12-02 15:00:53,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:00:53,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:00:53,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:00:53,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:00:53,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:00:53,611 INFO L87 Difference]: Start difference. First operand has 336180 states, 335029 states have (on average 4.978470520462408) internal successors, (1667932), 336179 states have internal predecessors, (1667932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:00:56,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:00:56,449 INFO L93 Difference]: Finished difference Result 155663 states and 709666 transitions. [2023-12-02 15:00:56,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:00:56,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2023-12-02 15:00:56,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:00:58,121 INFO L225 Difference]: With dead ends: 155663 [2023-12-02 15:00:58,121 INFO L226 Difference]: Without dead ends: 155663 [2023-12-02 15:00:58,123 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 [2023-12-02 15:00:58,127 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 67 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:00:58,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 40 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:00:58,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155663 states. [2023-12-02 15:01:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155663 to 155663. [2023-12-02 15:01:04,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155663 states, 155269 states have (on average 4.5705581925561445) internal successors, (709666), 155662 states have internal predecessors, (709666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:05,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155663 states to 155663 states and 709666 transitions. [2023-12-02 15:01:05,761 INFO L78 Accepts]: Start accepts. Automaton has 155663 states and 709666 transitions. Word has length 2 [2023-12-02 15:01:05,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:05,762 INFO L495 AbstractCegarLoop]: Abstraction has 155663 states and 709666 transitions. [2023-12-02 15:01:05,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:05,762 INFO L276 IsEmpty]: Start isEmpty. Operand 155663 states and 709666 transitions. [2023-12-02 15:01:05,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 15:01:05,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:05,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 15:01:05,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:01:05,763 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:01:05,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:05,764 INFO L85 PathProgramCache]: Analyzing trace with hash 28895, now seen corresponding path program 1 times [2023-12-02 15:01:05,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:01:05,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919227819] [2023-12-02 15:01:05,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:05,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:01:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:05,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:01:05,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919227819] [2023-12-02 15:01:05,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919227819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:05,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:05,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:01:05,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104803353] [2023-12-02 15:01:05,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:05,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:05,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:01:05,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:05,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:05,875 INFO L87 Difference]: Start difference. First operand 155663 states and 709666 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:08,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:08,002 INFO L93 Difference]: Finished difference Result 155662 states and 709665 transitions. [2023-12-02 15:01:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:08,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2023-12-02 15:01:08,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:09,171 INFO L225 Difference]: With dead ends: 155662 [2023-12-02 15:01:09,171 INFO L226 Difference]: Without dead ends: 155662 [2023-12-02 15:01:09,172 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 [2023-12-02 15:01:09,173 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 66 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:09,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 41 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:01:09,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155662 states. [2023-12-02 15:01:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155662 to 155662. [2023-12-02 15:01:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155662 states, 155269 states have (on average 4.5705517521205135) internal successors, (709665), 155661 states have internal predecessors, (709665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:15,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155662 states to 155662 states and 709665 transitions. [2023-12-02 15:01:15,944 INFO L78 Accepts]: Start accepts. Automaton has 155662 states and 709665 transitions. Word has length 2 [2023-12-02 15:01:15,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:15,944 INFO L495 AbstractCegarLoop]: Abstraction has 155662 states and 709665 transitions. [2023-12-02 15:01:15,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:15,945 INFO L276 IsEmpty]: Start isEmpty. Operand 155662 states and 709665 transitions. [2023-12-02 15:01:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 15:01:15,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:15,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 15:01:15,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:01:15,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:01:15,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:15,946 INFO L85 PathProgramCache]: Analyzing trace with hash 861705730, now seen corresponding path program 1 times [2023-12-02 15:01:15,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:01:15,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588935473] [2023-12-02 15:01:15,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:15,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:01:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:16,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:16,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:01:16,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588935473] [2023-12-02 15:01:16,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588935473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:16,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:16,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:01:16,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306863362] [2023-12-02 15:01:16,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:16,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:16,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:01:16,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:16,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:16,009 INFO L87 Difference]: Start difference. First operand 155662 states and 709665 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:17,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:17,694 INFO L93 Difference]: Finished difference Result 155655 states and 709652 transitions. [2023-12-02 15:01:17,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:17,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2023-12-02 15:01:17,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:18,780 INFO L225 Difference]: With dead ends: 155655 [2023-12-02 15:01:18,781 INFO L226 Difference]: Without dead ends: 155655 [2023-12-02 15:01:18,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:18,783 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 63 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:18,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 45 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:01:19,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155655 states. [2023-12-02 15:01:24,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155655 to 155655. [2023-12-02 15:01:24,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155655 states, 155263 states have (on average 4.570644648113201) internal successors, (709652), 155654 states have internal predecessors, (709652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:25,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155655 states to 155655 states and 709652 transitions. [2023-12-02 15:01:25,265 INFO L78 Accepts]: Start accepts. Automaton has 155655 states and 709652 transitions. Word has length 5 [2023-12-02 15:01:25,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:25,266 INFO L495 AbstractCegarLoop]: Abstraction has 155655 states and 709652 transitions. [2023-12-02 15:01:25,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:25,266 INFO L276 IsEmpty]: Start isEmpty. Operand 155655 states and 709652 transitions. [2023-12-02 15:01:25,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 15:01:25,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:25,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 15:01:25,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:01:25,266 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:01:25,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:25,267 INFO L85 PathProgramCache]: Analyzing trace with hash 861705731, now seen corresponding path program 1 times [2023-12-02 15:01:25,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:01:25,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058079458] [2023-12-02 15:01:25,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:25,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:01:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:25,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:25,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:01:25,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058079458] [2023-12-02 15:01:25,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058079458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:25,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:25,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:01:25,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880783664] [2023-12-02 15:01:25,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:25,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:25,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:01:25,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:25,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:25,348 INFO L87 Difference]: Start difference. First operand 155655 states and 709652 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:27,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:27,641 INFO L93 Difference]: Finished difference Result 155648 states and 709639 transitions. [2023-12-02 15:01:27,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:27,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2023-12-02 15:01:27,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:28,780 INFO L225 Difference]: With dead ends: 155648 [2023-12-02 15:01:28,780 INFO L226 Difference]: Without dead ends: 155648 [2023-12-02 15:01:28,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:28,781 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 62 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:28,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 46 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:01:29,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155648 states. [2023-12-02 15:01:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155648 to 155648. [2023-12-02 15:01:33,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155648 states, 155257 states have (on average 4.570737551285933) internal successors, (709639), 155647 states have internal predecessors, (709639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155648 states to 155648 states and 709639 transitions. [2023-12-02 15:01:34,844 INFO L78 Accepts]: Start accepts. Automaton has 155648 states and 709639 transitions. Word has length 5 [2023-12-02 15:01:34,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:34,845 INFO L495 AbstractCegarLoop]: Abstraction has 155648 states and 709639 transitions. [2023-12-02 15:01:34,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:34,845 INFO L276 IsEmpty]: Start isEmpty. Operand 155648 states and 709639 transitions. [2023-12-02 15:01:34,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 15:01:34,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:34,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:01:34,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:01:34,846 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:01:34,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:34,847 INFO L85 PathProgramCache]: Analyzing trace with hash 56792936, now seen corresponding path program 1 times [2023-12-02 15:01:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:01:34,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747100152] [2023-12-02 15:01:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:34,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:01:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:34,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:01:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747100152] [2023-12-02 15:01:34,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747100152] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:34,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:34,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:01:34,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695575848] [2023-12-02 15:01:34,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:34,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:34,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:01:34,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:34,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:34,913 INFO L87 Difference]: Start difference. First operand 155648 states and 709639 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-12-02 15:01:36,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:36,691 INFO L93 Difference]: Finished difference Result 155599 states and 709506 transitions. [2023-12-02 15:01:36,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:36,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2023-12-02 15:01:36,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:38,314 INFO L225 Difference]: With dead ends: 155599 [2023-12-02 15:01:38,314 INFO L226 Difference]: Without dead ends: 155599 [2023-12-02 15:01:38,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:38,316 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 59 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:38,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 50 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:01:38,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155599 states. [2023-12-02 15:01:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155599 to 155599. [2023-12-02 15:01:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155599 states, 155209 states have (on average 4.571294190414216) internal successors, (709506), 155598 states have internal predecessors, (709506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:44,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155599 states to 155599 states and 709506 transitions. [2023-12-02 15:01:44,548 INFO L78 Accepts]: Start accepts. Automaton has 155599 states and 709506 transitions. Word has length 8 [2023-12-02 15:01:44,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:44,549 INFO L495 AbstractCegarLoop]: Abstraction has 155599 states and 709506 transitions. [2023-12-02 15:01:44,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-12-02 15:01:44,549 INFO L276 IsEmpty]: Start isEmpty. Operand 155599 states and 709506 transitions. [2023-12-02 15:01:44,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 15:01:44,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:44,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:01:44,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:01:44,551 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:01:44,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:44,551 INFO L85 PathProgramCache]: Analyzing trace with hash 56792937, now seen corresponding path program 1 times [2023-12-02 15:01:44,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:01:44,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308378853] [2023-12-02 15:01:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:44,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:01:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:44,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:01:44,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308378853] [2023-12-02 15:01:44,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308378853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:44,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:44,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:01:44,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982992666] [2023-12-02 15:01:44,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:44,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:44,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:01:44,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:44,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:44,694 INFO L87 Difference]: Start difference. First operand 155599 states and 709506 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-12-02 15:01:46,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:46,617 INFO L93 Difference]: Finished difference Result 155550 states and 709373 transitions. [2023-12-02 15:01:46,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:46,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2023-12-02 15:01:46,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:47,954 INFO L225 Difference]: With dead ends: 155550 [2023-12-02 15:01:47,954 INFO L226 Difference]: Without dead ends: 155550 [2023-12-02 15:01:47,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:47,955 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 58 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:47,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 51 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:01:48,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155550 states. [2023-12-02 15:01:52,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155550 to 155550. [2023-12-02 15:01:52,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155550 states, 155161 states have (on average 4.571851173941906) internal successors, (709373), 155549 states have internal predecessors, (709373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:54,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155550 states to 155550 states and 709373 transitions. [2023-12-02 15:01:54,028 INFO L78 Accepts]: Start accepts. Automaton has 155550 states and 709373 transitions. Word has length 8 [2023-12-02 15:01:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:54,029 INFO L495 AbstractCegarLoop]: Abstraction has 155550 states and 709373 transitions. [2023-12-02 15:01:54,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-12-02 15:01:54,029 INFO L276 IsEmpty]: Start isEmpty. Operand 155550 states and 709373 transitions. [2023-12-02 15:01:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 15:01:54,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:54,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:01:54,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 15:01:54,031 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:01:54,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:54,031 INFO L85 PathProgramCache]: Analyzing trace with hash -297833862, now seen corresponding path program 1 times [2023-12-02 15:01:54,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:01:54,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070728884] [2023-12-02 15:01:54,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:54,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:01:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:54,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:54,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:01:54,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070728884] [2023-12-02 15:01:54,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070728884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:54,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:54,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:01:54,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127574990] [2023-12-02 15:01:54,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:54,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:54,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:01:54,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:54,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:54,095 INFO L87 Difference]: Start difference. First operand 155550 states and 709373 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:01:55,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:55,666 INFO L93 Difference]: Finished difference Result 154962 states and 707238 transitions. [2023-12-02 15:01:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:55,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 15:01:55,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:56,542 INFO L225 Difference]: With dead ends: 154962 [2023-12-02 15:01:56,542 INFO L226 Difference]: Without dead ends: 154962 [2023-12-02 15:01:56,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:56,544 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 55 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:56,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 53 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:01:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154962 states. [2023-12-02 15:02:00,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154962 to 154962. [2023-12-02 15:02:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154962 states, 154579 states have (on average 4.575252783366434) internal successors, (707238), 154961 states have internal predecessors, (707238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:02,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154962 states to 154962 states and 707238 transitions. [2023-12-02 15:02:02,173 INFO L78 Accepts]: Start accepts. Automaton has 154962 states and 707238 transitions. Word has length 11 [2023-12-02 15:02:02,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:02,173 INFO L495 AbstractCegarLoop]: Abstraction has 154962 states and 707238 transitions. [2023-12-02 15:02:02,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 154962 states and 707238 transitions. [2023-12-02 15:02:02,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 15:02:02,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:02,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:02,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 15:02:02,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:02,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:02,176 INFO L85 PathProgramCache]: Analyzing trace with hash -297833861, now seen corresponding path program 1 times [2023-12-02 15:02:02,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:02,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311856992] [2023-12-02 15:02:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:02,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:02,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:02,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311856992] [2023-12-02 15:02:02,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311856992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:02,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:02,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:02:02,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202554849] [2023-12-02 15:02:02,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:02,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:02:02,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:02,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:02:02,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:02:02,257 INFO L87 Difference]: Start difference. First operand 154962 states and 707238 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:03,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:03,823 INFO L93 Difference]: Finished difference Result 154374 states and 705103 transitions. [2023-12-02 15:02:03,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:02:03,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 15:02:03,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:04,640 INFO L225 Difference]: With dead ends: 154374 [2023-12-02 15:02:04,640 INFO L226 Difference]: Without dead ends: 154374 [2023-12-02 15:02:04,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:02:04,641 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 54 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:04,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 54 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:02:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154374 states. [2023-12-02 15:02:08,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154374 to 154374. [2023-12-02 15:02:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154374 states, 153997 states have (on average 4.578680104157873) internal successors, (705103), 154373 states have internal predecessors, (705103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:10,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154374 states to 154374 states and 705103 transitions. [2023-12-02 15:02:10,475 INFO L78 Accepts]: Start accepts. Automaton has 154374 states and 705103 transitions. Word has length 11 [2023-12-02 15:02:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:10,475 INFO L495 AbstractCegarLoop]: Abstraction has 154374 states and 705103 transitions. [2023-12-02 15:02:10,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:10,476 INFO L276 IsEmpty]: Start isEmpty. Operand 154374 states and 705103 transitions. [2023-12-02 15:02:10,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 15:02:10,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:10,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:10,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 15:02:10,478 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:10,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash -642809869, now seen corresponding path program 1 times [2023-12-02 15:02:10,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:10,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265299936] [2023-12-02 15:02:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:10,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:10,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:10,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265299936] [2023-12-02 15:02:10,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265299936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:10,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:10,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:02:10,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859133657] [2023-12-02 15:02:10,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:10,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:02:10,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:10,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:02:10,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:02:10,617 INFO L87 Difference]: Start difference. First operand 154374 states and 705103 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2023-12-02 15:02:12,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:12,787 INFO L93 Difference]: Finished difference Result 211606 states and 952567 transitions. [2023-12-02 15:02:12,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:02:12,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2023-12-02 15:02:12,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:14,579 INFO L225 Difference]: With dead ends: 211606 [2023-12-02 15:02:14,579 INFO L226 Difference]: Without dead ends: 211606 [2023-12-02 15:02:14,580 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 [2023-12-02 15:02:14,580 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 49 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:14,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 46 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:02:15,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211606 states. [2023-12-02 15:02:20,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211606 to 141487. [2023-12-02 15:02:20,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141487 states, 141173 states have (on average 4.548985995905733) internal successors, (642194), 141486 states have internal predecessors, (642194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141487 states to 141487 states and 642194 transitions. [2023-12-02 15:02:21,560 INFO L78 Accepts]: Start accepts. Automaton has 141487 states and 642194 transitions. Word has length 12 [2023-12-02 15:02:21,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:21,561 INFO L495 AbstractCegarLoop]: Abstraction has 141487 states and 642194 transitions. [2023-12-02 15:02:21,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2023-12-02 15:02:21,561 INFO L276 IsEmpty]: Start isEmpty. Operand 141487 states and 642194 transitions. [2023-12-02 15:02:21,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 15:02:21,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:21,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:21,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 15:02:21,563 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:21,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:21,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1547731489, now seen corresponding path program 1 times [2023-12-02 15:02:21,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:21,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120201658] [2023-12-02 15:02:21,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:21,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:21,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:21,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120201658] [2023-12-02 15:02:21,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120201658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:21,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:21,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:02:21,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099210449] [2023-12-02 15:02:21,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:21,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:02:21,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:21,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:02:21,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:02:21,788 INFO L87 Difference]: Start difference. First operand 141487 states and 642194 transitions. Second operand has 3 states, 2 states have (on average 6.5) 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) [2023-12-02 15:02:23,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:23,630 INFO L93 Difference]: Finished difference Result 171573 states and 777364 transitions. [2023-12-02 15:02:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:02:23,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) 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 [2023-12-02 15:02:23,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:24,466 INFO L225 Difference]: With dead ends: 171573 [2023-12-02 15:02:24,466 INFO L226 Difference]: Without dead ends: 171573 [2023-12-02 15:02:24,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:02:24,467 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 45 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:24,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 69 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:02:25,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171573 states. [2023-12-02 15:02:28,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171573 to 151581. [2023-12-02 15:02:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151581 states, 151283 states have (on average 4.6832624947945245) internal successors, (708498), 151580 states have internal predecessors, (708498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151581 states to 151581 states and 708498 transitions. [2023-12-02 15:02:30,497 INFO L78 Accepts]: Start accepts. Automaton has 151581 states and 708498 transitions. Word has length 13 [2023-12-02 15:02:30,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:30,497 INFO L495 AbstractCegarLoop]: Abstraction has 151581 states and 708498 transitions. [2023-12-02 15:02:30,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) 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) [2023-12-02 15:02:30,497 INFO L276 IsEmpty]: Start isEmpty. Operand 151581 states and 708498 transitions. [2023-12-02 15:02:30,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 15:02:30,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:30,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:30,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 15:02:30,499 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:30,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:30,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1547731491, now seen corresponding path program 1 times [2023-12-02 15:02:30,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:30,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295243826] [2023-12-02 15:02:30,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:30,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:30,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:30,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295243826] [2023-12-02 15:02:30,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295243826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:30,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:30,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:02:30,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129407467] [2023-12-02 15:02:30,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:30,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:02:30,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:30,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:02:30,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:02:30,732 INFO L87 Difference]: Start difference. First operand 151581 states and 708498 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2023-12-02 15:02:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:32,098 INFO L93 Difference]: Finished difference Result 111597 states and 501872 transitions. [2023-12-02 15:02:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:02:32,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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 [2023-12-02 15:02:32,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:32,639 INFO L225 Difference]: With dead ends: 111597 [2023-12-02 15:02:32,639 INFO L226 Difference]: Without dead ends: 111597 [2023-12-02 15:02:32,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:02:32,640 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 78 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:32,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 113 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:02:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111597 states. [2023-12-02 15:02:35,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111597 to 105129. [2023-12-02 15:02:35,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105129 states, 105002 states have (on average 4.595179139444963) internal successors, (482503), 105128 states have internal predecessors, (482503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:36,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105129 states to 105129 states and 482503 transitions. [2023-12-02 15:02:36,674 INFO L78 Accepts]: Start accepts. Automaton has 105129 states and 482503 transitions. Word has length 13 [2023-12-02 15:02:36,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:36,675 INFO L495 AbstractCegarLoop]: Abstraction has 105129 states and 482503 transitions. [2023-12-02 15:02:36,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2023-12-02 15:02:36,675 INFO L276 IsEmpty]: Start isEmpty. Operand 105129 states and 482503 transitions. [2023-12-02 15:02:36,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 15:02:36,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:36,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:36,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 15:02:36,676 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:36,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:36,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1547731492, now seen corresponding path program 1 times [2023-12-02 15:02:36,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:36,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997884402] [2023-12-02 15:02:36,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:36,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:36,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:36,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:36,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997884402] [2023-12-02 15:02:36,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997884402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:36,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:36,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:02:36,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100357676] [2023-12-02 15:02:36,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:36,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:02:36,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:36,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:02:36,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:02:36,953 INFO L87 Difference]: Start difference. First operand 105129 states and 482503 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:37,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:37,537 INFO L93 Difference]: Finished difference Result 57060 states and 250453 transitions. [2023-12-02 15:02:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:02:37,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-02 15:02:37,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:37,866 INFO L225 Difference]: With dead ends: 57060 [2023-12-02 15:02:37,866 INFO L226 Difference]: Without dead ends: 55247 [2023-12-02 15:02:37,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:02:37,867 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 78 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:37,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 38 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:02:38,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55247 states. [2023-12-02 15:02:39,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55247 to 52552. [2023-12-02 15:02:39,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52552 states, 52526 states have (on average 4.383162624224194) internal successors, (230230), 52551 states have internal predecessors, (230230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:39,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52552 states to 52552 states and 230230 transitions. [2023-12-02 15:02:39,610 INFO L78 Accepts]: Start accepts. Automaton has 52552 states and 230230 transitions. Word has length 13 [2023-12-02 15:02:39,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:39,610 INFO L495 AbstractCegarLoop]: Abstraction has 52552 states and 230230 transitions. [2023-12-02 15:02:39,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand 52552 states and 230230 transitions. [2023-12-02 15:02:39,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 15:02:39,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:39,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:39,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 15:02:39,613 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:39,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:39,613 INFO L85 PathProgramCache]: Analyzing trace with hash -194916065, now seen corresponding path program 1 times [2023-12-02 15:02:39,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:39,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818900035] [2023-12-02 15:02:39,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:39,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:40,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:40,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:40,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818900035] [2023-12-02 15:02:40,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818900035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:40,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:40,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:02:40,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912812007] [2023-12-02 15:02:40,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:40,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:02:40,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:40,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:02:40,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:02:40,086 INFO L87 Difference]: Start difference. First operand 52552 states and 230230 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 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) [2023-12-02 15:02:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:40,501 INFO L93 Difference]: Finished difference Result 50984 states and 222642 transitions. [2023-12-02 15:02:40,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:02:40,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 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 [2023-12-02 15:02:40,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:40,755 INFO L225 Difference]: With dead ends: 50984 [2023-12-02 15:02:40,756 INFO L226 Difference]: Without dead ends: 50984 [2023-12-02 15:02:40,756 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 [2023-12-02 15:02:40,757 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 31 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:40,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 45 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:02:40,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50984 states. [2023-12-02 15:02:42,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50984 to 50984. [2023-12-02 15:02:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50984 states, 50958 states have (on average 4.369127516778524) internal successors, (222642), 50983 states have internal predecessors, (222642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:42,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50984 states to 50984 states and 222642 transitions. [2023-12-02 15:02:42,610 INFO L78 Accepts]: Start accepts. Automaton has 50984 states and 222642 transitions. Word has length 17 [2023-12-02 15:02:42,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:42,610 INFO L495 AbstractCegarLoop]: Abstraction has 50984 states and 222642 transitions. [2023-12-02 15:02:42,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 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) [2023-12-02 15:02:42,610 INFO L276 IsEmpty]: Start isEmpty. Operand 50984 states and 222642 transitions. [2023-12-02 15:02:42,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 15:02:42,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:42,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:42,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 15:02:42,617 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:42,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:42,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1664332334, now seen corresponding path program 1 times [2023-12-02 15:02:42,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:42,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893258941] [2023-12-02 15:02:42,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:42,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:42,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:42,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:42,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893258941] [2023-12-02 15:02:42,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893258941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:42,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:42,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:02:42,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488945676] [2023-12-02 15:02:42,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:42,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:02:42,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:42,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:02:42,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:02:42,744 INFO L87 Difference]: Start difference. First operand 50984 states and 222642 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:43,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:43,812 INFO L93 Difference]: Finished difference Result 55884 states and 237412 transitions. [2023-12-02 15:02:43,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:02:43,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-02 15:02:43,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:44,146 INFO L225 Difference]: With dead ends: 55884 [2023-12-02 15:02:44,146 INFO L226 Difference]: Without dead ends: 55884 [2023-12-02 15:02:44,146 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 [2023-12-02 15:02:44,147 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 84 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:44,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 75 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:02:44,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55884 states. [2023-12-02 15:02:45,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55884 to 49269. [2023-12-02 15:02:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49269 states, 49244 states have (on average 4.363983429453334) internal successors, (214900), 49268 states have internal predecessors, (214900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:46,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49269 states to 49269 states and 214900 transitions. [2023-12-02 15:02:46,202 INFO L78 Accepts]: Start accepts. Automaton has 49269 states and 214900 transitions. Word has length 19 [2023-12-02 15:02:46,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:46,203 INFO L495 AbstractCegarLoop]: Abstraction has 49269 states and 214900 transitions. [2023-12-02 15:02:46,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:46,203 INFO L276 IsEmpty]: Start isEmpty. Operand 49269 states and 214900 transitions. [2023-12-02 15:02:46,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 15:02:46,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:46,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:46,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 15:02:46,211 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:46,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1664332335, now seen corresponding path program 1 times [2023-12-02 15:02:46,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:46,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055609302] [2023-12-02 15:02:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:46,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:46,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:46,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055609302] [2023-12-02 15:02:46,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055609302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:46,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:46,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:02:46,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221724117] [2023-12-02 15:02:46,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:46,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:02:46,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:02:46,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:02:46,464 INFO L87 Difference]: Start difference. First operand 49269 states and 214900 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:46,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:46,931 INFO L93 Difference]: Finished difference Result 47554 states and 207158 transitions. [2023-12-02 15:02:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:02:46,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-02 15:02:46,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:47,202 INFO L225 Difference]: With dead ends: 47554 [2023-12-02 15:02:47,203 INFO L226 Difference]: Without dead ends: 47554 [2023-12-02 15:02:47,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:02:47,203 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 126 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:47,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 58 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:02:47,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47554 states. [2023-12-02 15:02:48,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47554 to 47554. [2023-12-02 15:02:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47554 states, 47530 states have (on average 4.358468335787923) internal successors, (207158), 47553 states have internal predecessors, (207158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:49,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47554 states to 47554 states and 207158 transitions. [2023-12-02 15:02:49,371 INFO L78 Accepts]: Start accepts. Automaton has 47554 states and 207158 transitions. Word has length 19 [2023-12-02 15:02:49,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:49,372 INFO L495 AbstractCegarLoop]: Abstraction has 47554 states and 207158 transitions. [2023-12-02 15:02:49,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 47554 states and 207158 transitions. [2023-12-02 15:02:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 15:02:49,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:49,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:49,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 15:02:49,394 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:49,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:49,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1618361851, now seen corresponding path program 1 times [2023-12-02 15:02:49,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:49,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338800861] [2023-12-02 15:02:49,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:49,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:49,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:49,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338800861] [2023-12-02 15:02:49,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338800861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:49,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:49,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 15:02:49,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518159924] [2023-12-02 15:02:49,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:49,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 15:02:49,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:49,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 15:02:49,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:02:49,970 INFO L87 Difference]: Start difference. First operand 47554 states and 207158 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:50,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:50,683 INFO L93 Difference]: Finished difference Result 40792 states and 175966 transitions. [2023-12-02 15:02:50,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:02:50,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-02 15:02:50,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:50,843 INFO L225 Difference]: With dead ends: 40792 [2023-12-02 15:02:50,843 INFO L226 Difference]: Without dead ends: 38342 [2023-12-02 15:02:50,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:02:50,843 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 95 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:50,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 484 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 15:02:50,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38342 states. [2023-12-02 15:02:51,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38342 to 38342. [2023-12-02 15:02:51,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38342 states, 38330 states have (on average 4.297156274458649) internal successors, (164710), 38341 states have internal predecessors, (164710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:52,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38342 states to 38342 states and 164710 transitions. [2023-12-02 15:02:52,127 INFO L78 Accepts]: Start accepts. Automaton has 38342 states and 164710 transitions. Word has length 21 [2023-12-02 15:02:52,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:52,127 INFO L495 AbstractCegarLoop]: Abstraction has 38342 states and 164710 transitions. [2023-12-02 15:02:52,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:52,128 INFO L276 IsEmpty]: Start isEmpty. Operand 38342 states and 164710 transitions. [2023-12-02 15:02:52,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 15:02:52,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:52,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:52,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 15:02:52,137 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:52,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:52,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1618364253, now seen corresponding path program 1 times [2023-12-02 15:02:52,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:52,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312392989] [2023-12-02 15:02:52,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:52,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:52,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:52,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312392989] [2023-12-02 15:02:52,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312392989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:52,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:52,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 15:02:52,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13836467] [2023-12-02 15:02:52,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:52,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:02:52,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:52,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:02:52,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:02:52,400 INFO L87 Difference]: Start difference. First operand 38342 states and 164710 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:53,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:53,448 INFO L93 Difference]: Finished difference Result 53287 states and 225001 transitions. [2023-12-02 15:02:53,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 15:02:53,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-02 15:02:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:53,714 INFO L225 Difference]: With dead ends: 53287 [2023-12-02 15:02:53,715 INFO L226 Difference]: Without dead ends: 52405 [2023-12-02 15:02:53,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-02 15:02:53,715 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 185 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:53,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 257 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:02:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52405 states. [2023-12-02 15:02:54,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52405 to 41828. [2023-12-02 15:02:54,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41828 states, 41816 states have (on average 4.291945666730438) internal successors, (179472), 41827 states have internal predecessors, (179472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:55,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41828 states to 41828 states and 179472 transitions. [2023-12-02 15:02:55,251 INFO L78 Accepts]: Start accepts. Automaton has 41828 states and 179472 transitions. Word has length 21 [2023-12-02 15:02:55,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:55,252 INFO L495 AbstractCegarLoop]: Abstraction has 41828 states and 179472 transitions. [2023-12-02 15:02:55,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:55,252 INFO L276 IsEmpty]: Start isEmpty. Operand 41828 states and 179472 transitions. [2023-12-02 15:02:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 15:02:55,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:55,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:55,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 15:02:55,266 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:55,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1370388471, now seen corresponding path program 1 times [2023-12-02 15:02:55,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:55,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673424114] [2023-12-02 15:02:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:55,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:55,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:55,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673424114] [2023-12-02 15:02:55,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673424114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:55,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:55,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 15:02:55,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833002517] [2023-12-02 15:02:55,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:55,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 15:02:55,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:55,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 15:02:55,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:02:55,692 INFO L87 Difference]: Start difference. First operand 41828 states and 179472 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:56,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:56,061 INFO L93 Difference]: Finished difference Result 36928 states and 158626 transitions. [2023-12-02 15:02:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:02:56,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-12-02 15:02:56,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:56,166 INFO L225 Difference]: With dead ends: 36928 [2023-12-02 15:02:56,166 INFO L226 Difference]: Without dead ends: 25413 [2023-12-02 15:02:56,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:02:56,167 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 197 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:56,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 121 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:02:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25413 states. [2023-12-02 15:02:56,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25413 to 24678. [2023-12-02 15:02:56,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24678 states, 24677 states have (on average 4.332090610690116) internal successors, (106903), 24677 states have internal predecessors, (106903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24678 states to 24678 states and 106903 transitions. [2023-12-02 15:02:57,038 INFO L78 Accepts]: Start accepts. Automaton has 24678 states and 106903 transitions. Word has length 22 [2023-12-02 15:02:57,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:57,038 INFO L495 AbstractCegarLoop]: Abstraction has 24678 states and 106903 transitions. [2023-12-02 15:02:57,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:57,038 INFO L276 IsEmpty]: Start isEmpty. Operand 24678 states and 106903 transitions. [2023-12-02 15:02:57,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 15:02:57,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:57,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:57,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 15:02:57,049 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:57,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:57,049 INFO L85 PathProgramCache]: Analyzing trace with hash 475962366, now seen corresponding path program 1 times [2023-12-02 15:02:57,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:57,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447307418] [2023-12-02 15:02:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:57,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:57,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:57,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447307418] [2023-12-02 15:02:57,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447307418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:57,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:57,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:02:57,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153176878] [2023-12-02 15:02:57,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:57,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:02:57,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:57,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:02:57,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:02:57,248 INFO L87 Difference]: Start difference. First operand 24678 states and 106903 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:57,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:57,776 INFO L93 Difference]: Finished difference Result 29613 states and 124566 transitions. [2023-12-02 15:02:57,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 15:02:57,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-02 15:02:57,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:57,820 INFO L225 Difference]: With dead ends: 29613 [2023-12-02 15:02:57,820 INFO L226 Difference]: Without dead ends: 13603 [2023-12-02 15:02:57,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-02 15:02:57,821 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 209 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:57,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 192 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:02:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13603 states. [2023-12-02 15:02:58,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13603 to 13603. [2023-12-02 15:02:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13603 states, 13602 states have (on average 4.149610351418909) internal successors, (56443), 13602 states have internal predecessors, (56443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:58,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13603 states to 13603 states and 56443 transitions. [2023-12-02 15:02:58,134 INFO L78 Accepts]: Start accepts. Automaton has 13603 states and 56443 transitions. Word has length 23 [2023-12-02 15:02:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:58,134 INFO L495 AbstractCegarLoop]: Abstraction has 13603 states and 56443 transitions. [2023-12-02 15:02:58,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 13603 states and 56443 transitions. [2023-12-02 15:02:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 15:02:58,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:58,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:58,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 15:02:58,145 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:58,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:58,145 INFO L85 PathProgramCache]: Analyzing trace with hash 752037492, now seen corresponding path program 1 times [2023-12-02 15:02:58,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:58,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982499394] [2023-12-02 15:02:58,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:58,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:58,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982499394] [2023-12-02 15:02:58,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982499394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:58,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:58,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 15:02:58,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350548620] [2023-12-02 15:02:58,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:58,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:02:58,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:58,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:02:58,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:02:58,448 INFO L87 Difference]: Start difference. First operand 13603 states and 56443 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:58,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:58,760 INFO L93 Difference]: Finished difference Result 14163 states and 57931 transitions. [2023-12-02 15:02:58,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:02:58,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-12-02 15:02:58,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:58,797 INFO L225 Difference]: With dead ends: 14163 [2023-12-02 15:02:58,797 INFO L226 Difference]: Without dead ends: 12203 [2023-12-02 15:02:58,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:02:58,798 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 83 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:58,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 144 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:02:58,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12203 states. [2023-12-02 15:02:59,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12203 to 12203. [2023-12-02 15:02:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12203 states, 12202 states have (on average 4.120062284871333) internal successors, (50273), 12202 states have internal predecessors, (50273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 50273 transitions. [2023-12-02 15:02:59,077 INFO L78 Accepts]: Start accepts. Automaton has 12203 states and 50273 transitions. Word has length 26 [2023-12-02 15:02:59,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:59,078 INFO L495 AbstractCegarLoop]: Abstraction has 12203 states and 50273 transitions. [2023-12-02 15:02:59,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:59,078 INFO L276 IsEmpty]: Start isEmpty. Operand 12203 states and 50273 transitions. [2023-12-02 15:02:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 15:02:59,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:59,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:59,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 15:02:59,092 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:59,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:59,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1406373133, now seen corresponding path program 1 times [2023-12-02 15:02:59,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:59,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701662945] [2023-12-02 15:02:59,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:59,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:02:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:02:59,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:02:59,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701662945] [2023-12-02 15:02:59,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701662945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:02:59,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:02:59,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:02:59,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700725002] [2023-12-02 15:02:59,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:02:59,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:02:59,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:02:59,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:02:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:02:59,323 INFO L87 Difference]: Start difference. First operand 12203 states and 50273 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:59,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:02:59,639 INFO L93 Difference]: Finished difference Result 15703 states and 64158 transitions. [2023-12-02 15:02:59,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 15:02:59,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2023-12-02 15:02:59,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:02:59,662 INFO L225 Difference]: With dead ends: 15703 [2023-12-02 15:02:59,662 INFO L226 Difference]: Without dead ends: 8093 [2023-12-02 15:02:59,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-02 15:02:59,663 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 140 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:02:59,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 139 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:02:59,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8093 states. [2023-12-02 15:02:59,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8093 to 8093. [2023-12-02 15:02:59,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8093 states, 8092 states have (on average 4.0234799802273855) internal successors, (32558), 8092 states have internal predecessors, (32558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8093 states to 8093 states and 32558 transitions. [2023-12-02 15:02:59,836 INFO L78 Accepts]: Start accepts. Automaton has 8093 states and 32558 transitions. Word has length 28 [2023-12-02 15:02:59,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:02:59,836 INFO L495 AbstractCegarLoop]: Abstraction has 8093 states and 32558 transitions. [2023-12-02 15:02:59,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:02:59,837 INFO L276 IsEmpty]: Start isEmpty. Operand 8093 states and 32558 transitions. [2023-12-02 15:02:59,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 15:02:59,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:02:59,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:02:59,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 15:02:59,845 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:02:59,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:02:59,845 INFO L85 PathProgramCache]: Analyzing trace with hash -335347382, now seen corresponding path program 1 times [2023-12-02 15:02:59,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:02:59,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626911949] [2023-12-02 15:02:59,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:02:59,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:02:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:00,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:00,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626911949] [2023-12-02 15:03:00,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626911949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:00,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:00,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 15:03:00,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362600765] [2023-12-02 15:03:00,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:00,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:03:00,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:00,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:03:00,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:03:00,003 INFO L87 Difference]: Start difference. First operand 8093 states and 32558 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:00,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:00,259 INFO L93 Difference]: Finished difference Result 8413 states and 33374 transitions. [2023-12-02 15:03:00,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:03:00,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2023-12-02 15:03:00,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:00,279 INFO L225 Difference]: With dead ends: 8413 [2023-12-02 15:03:00,279 INFO L226 Difference]: Without dead ends: 7293 [2023-12-02 15:03:00,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:03:00,280 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 67 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:00,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 128 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:03:00,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7293 states. [2023-12-02 15:03:00,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7293 to 7293. [2023-12-02 15:03:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 7292 states have (on average 3.9931431705979157) internal successors, (29118), 7292 states have internal predecessors, (29118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 29118 transitions. [2023-12-02 15:03:00,423 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 29118 transitions. Word has length 29 [2023-12-02 15:03:00,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:00,424 INFO L495 AbstractCegarLoop]: Abstraction has 7293 states and 29118 transitions. [2023-12-02 15:03:00,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:00,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 29118 transitions. [2023-12-02 15:03:00,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 15:03:00,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:00,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:00,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 15:03:00,433 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:00,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:00,433 INFO L85 PathProgramCache]: Analyzing trace with hash 859660041, now seen corresponding path program 1 times [2023-12-02 15:03:00,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:00,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541452906] [2023-12-02 15:03:00,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:00,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:00,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:00,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:00,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541452906] [2023-12-02 15:03:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541452906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:00,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:00,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:03:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680979599] [2023-12-02 15:03:00,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:00,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:03:00,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:00,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:03:00,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:03:00,659 INFO L87 Difference]: Start difference. First operand 7293 states and 29118 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:00,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:00,947 INFO L93 Difference]: Finished difference Result 9293 states and 36838 transitions. [2023-12-02 15:03:00,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 15:03:00,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2023-12-02 15:03:00,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:00,965 INFO L225 Difference]: With dead ends: 9293 [2023-12-02 15:03:00,965 INFO L226 Difference]: Without dead ends: 4725 [2023-12-02 15:03:00,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-02 15:03:00,966 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 118 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:00,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 118 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:03:00,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4725 states. [2023-12-02 15:03:01,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4725 to 4725. [2023-12-02 15:03:01,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4725 states, 4724 states have (on average 3.895004233700254) internal successors, (18400), 4724 states have internal predecessors, (18400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4725 states to 4725 states and 18400 transitions. [2023-12-02 15:03:01,103 INFO L78 Accepts]: Start accepts. Automaton has 4725 states and 18400 transitions. Word has length 31 [2023-12-02 15:03:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:01,103 INFO L495 AbstractCegarLoop]: Abstraction has 4725 states and 18400 transitions. [2023-12-02 15:03:01,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:01,104 INFO L276 IsEmpty]: Start isEmpty. Operand 4725 states and 18400 transitions. [2023-12-02 15:03:01,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 15:03:01,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:01,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:01,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 15:03:01,111 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:01,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2094353280, now seen corresponding path program 1 times [2023-12-02 15:03:01,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:01,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51667968] [2023-12-02 15:03:01,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:01,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:02,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:02,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51667968] [2023-12-02 15:03:02,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51667968] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:02,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:02,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-02 15:03:02,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024923646] [2023-12-02 15:03:02,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:02,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 15:03:02,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:02,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 15:03:02,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-12-02 15:03:02,295 INFO L87 Difference]: Start difference. First operand 4725 states and 18400 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:02,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:02,852 INFO L93 Difference]: Finished difference Result 5397 states and 20800 transitions. [2023-12-02 15:03:02,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 15:03:02,852 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2023-12-02 15:03:02,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:02,863 INFO L225 Difference]: With dead ends: 5397 [2023-12-02 15:03:02,863 INFO L226 Difference]: Without dead ends: 4661 [2023-12-02 15:03:02,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2023-12-02 15:03:02,864 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 281 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:02,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 285 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:03:02,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4661 states. [2023-12-02 15:03:02,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4661 to 4469. [2023-12-02 15:03:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4469 states, 4468 states have (on average 3.8603401969561326) internal successors, (17248), 4468 states have internal predecessors, (17248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4469 states to 4469 states and 17248 transitions. [2023-12-02 15:03:02,944 INFO L78 Accepts]: Start accepts. Automaton has 4469 states and 17248 transitions. Word has length 32 [2023-12-02 15:03:02,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:02,944 INFO L495 AbstractCegarLoop]: Abstraction has 4469 states and 17248 transitions. [2023-12-02 15:03:02,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:02,944 INFO L276 IsEmpty]: Start isEmpty. Operand 4469 states and 17248 transitions. [2023-12-02 15:03:02,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 15:03:02,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:02,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:02,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 15:03:02,951 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:02,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:02,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2012391032, now seen corresponding path program 1 times [2023-12-02 15:03:02,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:02,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350997342] [2023-12-02 15:03:02,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:02,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:03,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:03,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350997342] [2023-12-02 15:03:03,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350997342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:03,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:03,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-02 15:03:03,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188562127] [2023-12-02 15:03:03,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:03,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 15:03:03,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:03,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 15:03:03,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-02 15:03:03,989 INFO L87 Difference]: Start difference. First operand 4469 states and 17248 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:04,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:04,481 INFO L93 Difference]: Finished difference Result 4901 states and 18696 transitions. [2023-12-02 15:03:04,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 15:03:04,482 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2023-12-02 15:03:04,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:04,491 INFO L225 Difference]: With dead ends: 4901 [2023-12-02 15:03:04,492 INFO L226 Difference]: Without dead ends: 4389 [2023-12-02 15:03:04,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2023-12-02 15:03:04,492 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 196 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:04,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 271 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:03:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2023-12-02 15:03:04,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 4373. [2023-12-02 15:03:04,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4373 states, 4372 states have (on average 3.849954254345837) internal successors, (16832), 4372 states have internal predecessors, (16832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:04,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4373 states to 4373 states and 16832 transitions. [2023-12-02 15:03:04,573 INFO L78 Accepts]: Start accepts. Automaton has 4373 states and 16832 transitions. Word has length 33 [2023-12-02 15:03:04,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:04,573 INFO L495 AbstractCegarLoop]: Abstraction has 4373 states and 16832 transitions. [2023-12-02 15:03:04,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 4373 states and 16832 transitions. [2023-12-02 15:03:04,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 15:03:04,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:04,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:04,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-02 15:03:04,580 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:04,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:04,580 INFO L85 PathProgramCache]: Analyzing trace with hash 429836763, now seen corresponding path program 1 times [2023-12-02 15:03:04,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:04,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91644301] [2023-12-02 15:03:04,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:04,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:04,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:04,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91644301] [2023-12-02 15:03:04,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91644301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:04,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:04,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:03:04,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662223214] [2023-12-02 15:03:04,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:04,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:03:04,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:04,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:03:04,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:03:04,721 INFO L87 Difference]: Start difference. First operand 4373 states and 16832 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:04,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:04,825 INFO L93 Difference]: Finished difference Result 4589 states and 17036 transitions. [2023-12-02 15:03:04,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:03:04,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2023-12-02 15:03:04,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:04,835 INFO L225 Difference]: With dead ends: 4589 [2023-12-02 15:03:04,836 INFO L226 Difference]: Without dead ends: 3973 [2023-12-02 15:03:04,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:03:04,837 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 69 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:04,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 46 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:03:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3973 states. [2023-12-02 15:03:04,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3973 to 3973. [2023-12-02 15:03:04,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3973 states, 3972 states have (on average 3.7895266868076534) internal successors, (15052), 3972 states have internal predecessors, (15052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3973 states to 3973 states and 15052 transitions. [2023-12-02 15:03:04,938 INFO L78 Accepts]: Start accepts. Automaton has 3973 states and 15052 transitions. Word has length 34 [2023-12-02 15:03:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:04,938 INFO L495 AbstractCegarLoop]: Abstraction has 3973 states and 15052 transitions. [2023-12-02 15:03:04,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3973 states and 15052 transitions. [2023-12-02 15:03:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 15:03:04,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:04,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:04,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-02 15:03:04,944 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:04,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:04,945 INFO L85 PathProgramCache]: Analyzing trace with hash 440694533, now seen corresponding path program 1 times [2023-12-02 15:03:04,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:04,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498336481] [2023-12-02 15:03:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:04,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:06,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:06,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498336481] [2023-12-02 15:03:06,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498336481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:06,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:06,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-02 15:03:06,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471333504] [2023-12-02 15:03:06,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:06,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 15:03:06,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:06,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 15:03:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-12-02 15:03:06,051 INFO L87 Difference]: Start difference. First operand 3973 states and 15052 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:06,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:06,533 INFO L93 Difference]: Finished difference Result 4553 states and 17164 transitions. [2023-12-02 15:03:06,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 15:03:06,533 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2023-12-02 15:03:06,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:06,543 INFO L225 Difference]: With dead ends: 4553 [2023-12-02 15:03:06,543 INFO L226 Difference]: Without dead ends: 4201 [2023-12-02 15:03:06,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2023-12-02 15:03:06,544 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 230 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:06,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 302 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:03:06,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4201 states. [2023-12-02 15:03:06,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4201 to 4157. [2023-12-02 15:03:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4157 states, 4156 states have (on average 3.803657362848893) internal successors, (15808), 4156 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:06,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4157 states to 4157 states and 15808 transitions. [2023-12-02 15:03:06,617 INFO L78 Accepts]: Start accepts. Automaton has 4157 states and 15808 transitions. Word has length 35 [2023-12-02 15:03:06,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:06,617 INFO L495 AbstractCegarLoop]: Abstraction has 4157 states and 15808 transitions. [2023-12-02 15:03:06,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:06,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4157 states and 15808 transitions. [2023-12-02 15:03:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 15:03:06,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:06,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:06,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-02 15:03:06,624 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:06,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:06,624 INFO L85 PathProgramCache]: Analyzing trace with hash 741221849, now seen corresponding path program 1 times [2023-12-02 15:03:06,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:06,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980258574] [2023-12-02 15:03:06,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:06,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:06,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:06,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980258574] [2023-12-02 15:03:06,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980258574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:06,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:06,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 15:03:06,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991769353] [2023-12-02 15:03:06,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:06,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:03:06,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:06,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:03:06,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:03:06,805 INFO L87 Difference]: Start difference. First operand 4157 states and 15808 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:06,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:06,938 INFO L93 Difference]: Finished difference Result 3753 states and 13524 transitions. [2023-12-02 15:03:06,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 15:03:06,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2023-12-02 15:03:06,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:06,949 INFO L225 Difference]: With dead ends: 3753 [2023-12-02 15:03:06,949 INFO L226 Difference]: Without dead ends: 3205 [2023-12-02 15:03:06,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:03:06,949 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 95 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:06,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 52 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:03:06,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2023-12-02 15:03:07,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 3205. [2023-12-02 15:03:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3204 states have (on average 3.6416978776529336) internal successors, (11668), 3204 states have internal predecessors, (11668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 11668 transitions. [2023-12-02 15:03:07,023 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 11668 transitions. Word has length 35 [2023-12-02 15:03:07,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:07,024 INFO L495 AbstractCegarLoop]: Abstraction has 3205 states and 11668 transitions. [2023-12-02 15:03:07,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:07,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 11668 transitions. [2023-12-02 15:03:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 15:03:07,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:07,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:07,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 15:03:07,029 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:07,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:07,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1504860262, now seen corresponding path program 1 times [2023-12-02 15:03:07,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:07,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393517929] [2023-12-02 15:03:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:07,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:07,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:07,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393517929] [2023-12-02 15:03:07,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393517929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:07,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:07,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:03:07,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234587290] [2023-12-02 15:03:07,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:07,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:03:07,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:07,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:03:07,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:03:07,234 INFO L87 Difference]: Start difference. First operand 3205 states and 11668 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:07,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:07,398 INFO L93 Difference]: Finished difference Result 2433 states and 8428 transitions. [2023-12-02 15:03:07,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:03:07,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2023-12-02 15:03:07,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:07,405 INFO L225 Difference]: With dead ends: 2433 [2023-12-02 15:03:07,405 INFO L226 Difference]: Without dead ends: 2109 [2023-12-02 15:03:07,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:03:07,406 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 138 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:07,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 53 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:03:07,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2023-12-02 15:03:07,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 2109. [2023-12-02 15:03:07,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 2108 states have (on average 3.472485768500949) internal successors, (7320), 2108 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:07,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 7320 transitions. [2023-12-02 15:03:07,447 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 7320 transitions. Word has length 37 [2023-12-02 15:03:07,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:07,447 INFO L495 AbstractCegarLoop]: Abstraction has 2109 states and 7320 transitions. [2023-12-02 15:03:07,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:07,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 7320 transitions. [2023-12-02 15:03:07,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 15:03:07,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:07,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:07,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-02 15:03:07,451 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:07,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:07,451 INFO L85 PathProgramCache]: Analyzing trace with hash 825926809, now seen corresponding path program 1 times [2023-12-02 15:03:07,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:07,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440472461] [2023-12-02 15:03:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:07,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:07,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:07,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:03:07,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440472461] [2023-12-02 15:03:07,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440472461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:07,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:07,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 15:03:07,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989521062] [2023-12-02 15:03:07,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:07,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:03:07,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:03:07,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:03:07,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:03:07,704 INFO L87 Difference]: Start difference. First operand 2109 states and 7320 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:07,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:07,865 INFO L93 Difference]: Finished difference Result 1613 states and 5560 transitions. [2023-12-02 15:03:07,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:03:07,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2023-12-02 15:03:07,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:07,869 INFO L225 Difference]: With dead ends: 1613 [2023-12-02 15:03:07,869 INFO L226 Difference]: Without dead ends: 1501 [2023-12-02 15:03:07,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-02 15:03:07,870 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 159 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:07,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 45 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:03:07,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2023-12-02 15:03:07,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1405. [2023-12-02 15:03:07,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 3.4472934472934473) internal successors, (4840), 1404 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:07,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 4840 transitions. [2023-12-02 15:03:07,905 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 4840 transitions. Word has length 39 [2023-12-02 15:03:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:07,905 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 4840 transitions. [2023-12-02 15:03:07,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 4840 transitions. [2023-12-02 15:03:07,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 15:03:07,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:07,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:07,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-02 15:03:07,909 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:07,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:07,909 INFO L85 PathProgramCache]: Analyzing trace with hash 768709338, now seen corresponding path program 1 times [2023-12-02 15:03:07,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:03:07,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032000387] [2023-12-02 15:03:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:07,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:03:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:03:07,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:03:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:03:08,068 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:03:08,068 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:03:08,069 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (69 of 70 remaining) [2023-12-02 15:03:08,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (68 of 70 remaining) [2023-12-02 15:03:08,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 70 remaining) [2023-12-02 15:03:08,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 70 remaining) [2023-12-02 15:03:08,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 70 remaining) [2023-12-02 15:03:08,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 70 remaining) [2023-12-02 15:03:08,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 70 remaining) [2023-12-02 15:03:08,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 70 remaining) [2023-12-02 15:03:08,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 70 remaining) [2023-12-02 15:03:08,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 70 remaining) [2023-12-02 15:03:08,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 70 remaining) [2023-12-02 15:03:08,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 70 remaining) [2023-12-02 15:03:08,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 70 remaining) [2023-12-02 15:03:08,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 70 remaining) [2023-12-02 15:03:08,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 70 remaining) [2023-12-02 15:03:08,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 70 remaining) [2023-12-02 15:03:08,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 70 remaining) [2023-12-02 15:03:08,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 70 remaining) [2023-12-02 15:03:08,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 70 remaining) [2023-12-02 15:03:08,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 70 remaining) [2023-12-02 15:03:08,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 70 remaining) [2023-12-02 15:03:08,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 70 remaining) [2023-12-02 15:03:08,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 70 remaining) [2023-12-02 15:03:08,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 70 remaining) [2023-12-02 15:03:08,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 70 remaining) [2023-12-02 15:03:08,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 70 remaining) [2023-12-02 15:03:08,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 70 remaining) [2023-12-02 15:03:08,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 70 remaining) [2023-12-02 15:03:08,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 70 remaining) [2023-12-02 15:03:08,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 70 remaining) [2023-12-02 15:03:08,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 70 remaining) [2023-12-02 15:03:08,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 70 remaining) [2023-12-02 15:03:08,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 70 remaining) [2023-12-02 15:03:08,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 70 remaining) [2023-12-02 15:03:08,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 70 remaining) [2023-12-02 15:03:08,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 70 remaining) [2023-12-02 15:03:08,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 70 remaining) [2023-12-02 15:03:08,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 70 remaining) [2023-12-02 15:03:08,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 70 remaining) [2023-12-02 15:03:08,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 70 remaining) [2023-12-02 15:03:08,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK (29 of 70 remaining) [2023-12-02 15:03:08,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 70 remaining) [2023-12-02 15:03:08,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 70 remaining) [2023-12-02 15:03:08,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 70 remaining) [2023-12-02 15:03:08,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 70 remaining) [2023-12-02 15:03:08,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (24 of 70 remaining) [2023-12-02 15:03:08,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 70 remaining) [2023-12-02 15:03:08,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 70 remaining) [2023-12-02 15:03:08,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 70 remaining) [2023-12-02 15:03:08,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 70 remaining) [2023-12-02 15:03:08,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 70 remaining) [2023-12-02 15:03:08,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 70 remaining) [2023-12-02 15:03:08,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 70 remaining) [2023-12-02 15:03:08,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 70 remaining) [2023-12-02 15:03:08,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 70 remaining) [2023-12-02 15:03:08,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 70 remaining) [2023-12-02 15:03:08,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 70 remaining) [2023-12-02 15:03:08,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 70 remaining) [2023-12-02 15:03:08,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 70 remaining) [2023-12-02 15:03:08,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 70 remaining) [2023-12-02 15:03:08,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 70 remaining) [2023-12-02 15:03:08,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 70 remaining) [2023-12-02 15:03:08,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 70 remaining) [2023-12-02 15:03:08,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 70 remaining) [2023-12-02 15:03:08,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 70 remaining) [2023-12-02 15:03:08,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 70 remaining) [2023-12-02 15:03:08,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 70 remaining) [2023-12-02 15:03:08,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 70 remaining) [2023-12-02 15:03:08,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 70 remaining) [2023-12-02 15:03:08,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 70 remaining) [2023-12-02 15:03:08,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-02 15:03:08,082 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:03:08,086 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 15:03:08,086 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:03:08,158 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre25 could not be translated [2023-12-02 15:03:08,161 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre27 could not be translated [2023-12-02 15:03:08,163 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre29 could not be translated [2023-12-02 15:03:08,165 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre31 could not be translated [2023-12-02 15:03:08,183 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-12-02 15:03:08,184 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-12-02 15:03:08,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:03:08 BasicIcfg [2023-12-02 15:03:08,198 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:03:08,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:03:08,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:03:08,199 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:03:08,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:41" (3/4) ... [2023-12-02 15:03:08,201 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:03:08,202 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:03:08,202 INFO L158 Benchmark]: Toolchain (without parser) took 148260.34ms. Allocated memory was 157.3MB in the beginning and 16.1GB in the end (delta: 15.9GB). Free memory was 117.0MB in the beginning and 11.5GB in the end (delta: -11.4GB). Peak memory consumption was 4.5GB. Max. memory is 16.1GB. [2023-12-02 15:03:08,203 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:03:08,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.29ms. Allocated memory is still 157.3MB. Free memory was 116.4MB in the beginning and 110.4MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 15:03:08,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.90ms. Allocated memory is still 157.3MB. Free memory was 110.4MB in the beginning and 107.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:03:08,203 INFO L158 Benchmark]: Boogie Preprocessor took 44.70ms. Allocated memory is still 157.3MB. Free memory was 107.6MB in the beginning and 104.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:03:08,204 INFO L158 Benchmark]: RCFGBuilder took 1229.18ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 104.8MB in the beginning and 150.4MB in the end (delta: -45.7MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2023-12-02 15:03:08,204 INFO L158 Benchmark]: TraceAbstraction took 146368.65ms. Allocated memory was 188.7MB in the beginning and 16.1GB in the end (delta: 15.9GB). Free memory was 149.4MB in the beginning and 11.5GB in the end (delta: -11.4GB). Peak memory consumption was 4.5GB. Max. memory is 16.1GB. [2023-12-02 15:03:08,204 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 16.1GB. Free memory is still 11.5GB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:03:08,206 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.29ms. Allocated memory is still 157.3MB. Free memory was 116.4MB in the beginning and 110.4MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.90ms. Allocated memory is still 157.3MB. Free memory was 110.4MB in the beginning and 107.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.70ms. Allocated memory is still 157.3MB. Free memory was 107.6MB in the beginning and 104.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1229.18ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 104.8MB in the beginning and 150.4MB in the end (delta: -45.7MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. * TraceAbstraction took 146368.65ms. Allocated memory was 188.7MB in the beginning and 16.1GB in the end (delta: 15.9GB). Free memory was 149.4MB in the beginning and 11.5GB in the end (delta: -11.4GB). Peak memory consumption was 4.5GB. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 16.1GB. Free memory is still 11.5GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L719] 0 _Bool __unbuffered_p3_EAX$flush_delayed; [L720] 0 int __unbuffered_p3_EAX$mem_tmp; [L721] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd0; [L722] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd1; [L723] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd2; [L724] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd3; [L725] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd4; [L726] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd0; [L727] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd1; [L728] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd2; [L729] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd3; [L730] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd4; [L731] 0 _Bool __unbuffered_p3_EAX$read_delayed; [L732] 0 int *__unbuffered_p3_EAX$read_delayed_var; [L733] 0 int __unbuffered_p3_EAX$w_buff0; [L734] 0 _Bool __unbuffered_p3_EAX$w_buff0_used; [L735] 0 int __unbuffered_p3_EAX$w_buff1; [L736] 0 _Bool __unbuffered_p3_EAX$w_buff1_used; [L738] 0 int a = 0; [L739] 0 _Bool main$tmp_guard0; [L740] 0 _Bool main$tmp_guard1; [L742] 0 int x = 0; [L744] 0 int y = 0; [L746] 0 int z = 0; [L747] 0 _Bool z$flush_delayed; [L748] 0 int z$mem_tmp; [L749] 0 _Bool z$r_buff0_thd0; [L750] 0 _Bool z$r_buff0_thd1; [L751] 0 _Bool z$r_buff0_thd2; [L752] 0 _Bool z$r_buff0_thd3; [L753] 0 _Bool z$r_buff0_thd4; [L754] 0 _Bool z$r_buff1_thd0; [L755] 0 _Bool z$r_buff1_thd1; [L756] 0 _Bool z$r_buff1_thd2; [L757] 0 _Bool z$r_buff1_thd3; [L758] 0 _Bool z$r_buff1_thd4; [L759] 0 _Bool z$read_delayed; [L760] 0 int *z$read_delayed_var; [L761] 0 int z$w_buff0; [L762] 0 _Bool z$w_buff0_used; [L763] 0 int z$w_buff1; [L764] 0 _Bool z$w_buff1_used; [L765] 0 _Bool weak$$choice0; [L766] 0 _Bool weak$$choice1; [L767] 0 _Bool weak$$choice2; [L875] 0 pthread_t t2709; [L876] FCALL, FORK 0 pthread_create(&t2709, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709={5:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L877] 0 pthread_t t2710; [L878] FCALL, FORK 0 pthread_create(&t2710, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709={5:0}, t2710={6:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L879] 0 pthread_t t2711; [L880] FCALL, FORK 0 pthread_create(&t2711, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709={5:0}, t2710={6:0}, t2711={4:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L881] 0 pthread_t t2712; [L882] FCALL, FORK 0 pthread_create(&t2712, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709={5:0}, t2710={6:0}, t2711={4:0}, t2712={8:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L831] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 4 z$flush_delayed = weak$$choice2 [L834] EXPR 4 \read(z) [L834] 4 z$mem_tmp = z [L835] 4 weak$$choice1 = __VERIFIER_nondet_bool() [L836] EXPR 4 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L836] EXPR 4 \read(z) [L836] EXPR 4 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L836] 4 z = !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L837] 4 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)))) [L838] 4 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)))) [L839] 4 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 || !weak$$choice1 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 : weak$$choice0)))) [L840] 4 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L841] 4 z$r_buff0_thd4 = weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L842] 4 z$r_buff1_thd4 = weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$r_buff1_thd4 : (_Bool)0) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L843] 4 __unbuffered_p3_EAX$read_delayed = (_Bool)1 [L844] 4 __unbuffered_p3_EAX$read_delayed_var = &z [L845] EXPR 4 \read(z) [L845] 4 __unbuffered_p3_EAX = z [L846] EXPR 4 z$flush_delayed ? z$mem_tmp : z [L846] EXPR 4 \read(z) [L846] EXPR 4 z$flush_delayed ? z$mem_tmp : z [L846] 4 z = z$flush_delayed ? z$mem_tmp : z [L847] 4 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L850] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L771] 1 __unbuffered_p0_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L774] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L779] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L853] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L853] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L853] EXPR 4 \read(z) [L853] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L853] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L853] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L854] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L855] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L856] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L857] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L786] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L860] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L789] 2 y = 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L801] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L804] 3 z$w_buff1 = z$w_buff0 [L805] 3 z$w_buff0 = 1 [L806] 3 z$w_buff1_used = z$w_buff0_used [L807] 3 z$w_buff0_used = (_Bool)1 [L808] CALL 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L808] RET 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L809] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L810] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L811] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L812] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L813] 3 z$r_buff1_thd4 = z$r_buff0_thd4 [L814] 3 z$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L817] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L817] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L818] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L819] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L820] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L821] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L824] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L794] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L884] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709={5:0}, t2710={6:0}, t2711={4:0}, t2712={8:0}, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L886] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L886] RET 0 assume_abort_if_not(main$tmp_guard0) [L888] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L888] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L888] EXPR 0 \read(z) [L888] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L888] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L888] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L889] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L890] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L891] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L892] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709={5:0}, t2710={6:0}, t2711={4:0}, t2712={8:0}, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L895] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L896] EXPR 0 __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L896] EXPR 0 weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX [L896] EXPR 0 \read(*__unbuffered_p3_EAX$read_delayed_var) [L896] EXPR 0 weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX [L896] EXPR 0 __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L896] 0 __unbuffered_p3_EAX = __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L897] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p1_EAX == 1 && __unbuffered_p2_EAX == 1 && __unbuffered_p3_EAX == 1) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709={5:0}, t2710={6:0}, t2711={4:0}, t2712={8:0}, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L899] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L17] 0 __assert_fail ("0", "thin002_power.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=12, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 873]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 876]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 882]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 151 locations, 70 error locations. Started 1 CEGAR loops. OverallTime: 146.0s, OverallIterations: 31, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.7s, AutomataDifference: 45.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3237 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3237 mSDsluCounter, 3461 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2411 mSDsCounter, 247 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3877 IncrementalHoareTripleChecker+Invalid, 4124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 247 mSolverCounterUnsat, 1050 mSDtfsCounter, 3877 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 211 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=336180occurred in iteration=0, InterpolantAutomatonStates: 176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 80.8s AutomataMinimizationTime, 30 MinimizatonAttempts, 117549 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 645 NumberOfCodeBlocks, 645 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 574 ConstructedInterpolants, 0 QuantifiedInterpolants, 4677 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 15:03:08,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:03:10,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:03:10,943 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-12-02 15:03:10,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:03:10,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:03:10,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:03:10,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:03:10,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:03:10,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:03:10,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:03:10,982 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:03:10,983 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:03:10,983 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:03:10,984 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:03:10,984 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:03:10,985 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:03:10,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 15:03:10,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 15:03:10,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:03:10,988 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:03:10,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:03:10,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:03:10,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:03:10,990 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 15:03:10,990 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 15:03:10,991 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 15:03:10,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:03:10,992 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:03:10,992 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:03:10,992 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:03:10,993 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:03:10,993 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:03:10,994 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:03:10,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:03:10,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:03:10,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:03:10,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:03:10,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:03:10,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:03:10,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:03:10,996 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:03:10,996 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:03:10,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:03:10,997 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:03:10,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:03:10,997 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2023-12-02 15:03:11,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:03:11,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:03:11,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:03:11,311 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:03:11,311 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:03:11,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-12-02 15:03:14,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:03:14,415 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:03:14,416 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-12-02 15:03:14,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/data/70861c2d3/c13b118fe45d4af2930fe528d370e02f/FLAG08da83868 [2023-12-02 15:03:14,725 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/data/70861c2d3/c13b118fe45d4af2930fe528d370e02f [2023-12-02 15:03:14,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:03:14,729 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:03:14,730 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:03:14,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:03:14,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:03:14,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:03:14" (1/1) ... [2023-12-02 15:03:14,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c5233f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:14, skipping insertion in model container [2023-12-02 15:03:14,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:03:14" (1/1) ... [2023-12-02 15:03:14,818 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:03:15,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:03:15,255 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:03:15,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:03:15,373 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:03:15,373 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:03:15,381 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:03:15,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15 WrapperNode [2023-12-02 15:03:15,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:03:15,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:03:15,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:03:15,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:03:15,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,451 INFO L138 Inliner]: procedures = 181, calls = 85, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 206 [2023-12-02 15:03:15,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:03:15,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:03:15,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:03:15,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:03:15,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:03:15,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:03:15,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:03:15,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:03:15,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (1/1) ... [2023-12-02 15:03:15,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:03:15,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:03:15,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:03:15,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:03:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 15:03:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 15:03:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:03:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:03:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:03:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 15:03:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:03:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 15:03:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-02 15:03:15,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-02 15:03:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-02 15:03:15,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-02 15:03:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-02 15:03:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-02 15:03:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-02 15:03:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-02 15:03:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 15:03:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:03:15,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:03:15,618 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 15:03:15,821 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:03:15,823 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:03:16,545 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:03:17,155 WARN L1821 r$LargeBlockEncoding]: Complex 2:9 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-12-02 15:03:17,228 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:03:17,228 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:03:17,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:03:17 BoogieIcfgContainer [2023-12-02 15:03:17,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:03:17,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:03:17,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:03:17,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:03:17,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:03:14" (1/3) ... [2023-12-02 15:03:17,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a661c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:03:17, skipping insertion in model container [2023-12-02 15:03:17,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:03:15" (2/3) ... [2023-12-02 15:03:17,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a661c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:03:17, skipping insertion in model container [2023-12-02 15:03:17,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:03:17" (3/3) ... [2023-12-02 15:03:17,238 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2023-12-02 15:03:17,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:03:17,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2023-12-02 15:03:17,260 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 15:03:17,456 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 15:03:17,486 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 106 places, 104 transitions, 224 flow [2023-12-02 15:03:26,913 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 336180 states, 335029 states have (on average 4.978470520462408) internal successors, (1667932), 336179 states have internal predecessors, (1667932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:26,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:03:26,938 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;@4cd1b425, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:03:26,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2023-12-02 15:03:27,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 336180 states, 335029 states have (on average 4.978470520462408) internal successors, (1667932), 336179 states have internal predecessors, (1667932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:27,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 15:03:27,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:27,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 15:03:27,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:27,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:27,397 INFO L85 PathProgramCache]: Analyzing trace with hash 28958, now seen corresponding path program 1 times [2023-12-02 15:03:27,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:03:27,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626167031] [2023-12-02 15:03:27,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:27,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:03:27,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:03:27,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:03:27,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 15:03:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:27,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:03:27,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:03:27,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 6 treesize of output 7 [2023-12-02 15:03:27,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:27,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:03:27,605 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:03:27,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [626167031] [2023-12-02 15:03:27,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [626167031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:27,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:27,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:03:27,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642261553] [2023-12-02 15:03:27,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:27,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:03:27,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:03:27,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:03:27,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:03:28,158 INFO L87 Difference]: Start difference. First operand has 336180 states, 335029 states have (on average 4.978470520462408) internal successors, (1667932), 336179 states have internal predecessors, (1667932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:31,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:31,560 INFO L93 Difference]: Finished difference Result 155663 states and 709666 transitions. [2023-12-02 15:03:31,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:03:31,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2023-12-02 15:03:31,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:32,711 INFO L225 Difference]: With dead ends: 155663 [2023-12-02 15:03:32,711 INFO L226 Difference]: Without dead ends: 155663 [2023-12-02 15:03:32,713 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 [2023-12-02 15:03:32,716 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 67 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:32,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 40 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 15:03:33,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155663 states. [2023-12-02 15:03:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155663 to 155663. [2023-12-02 15:03:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155663 states, 155269 states have (on average 4.5705581925561445) internal successors, (709666), 155662 states have internal predecessors, (709666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:40,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155663 states to 155663 states and 709666 transitions. [2023-12-02 15:03:40,006 INFO L78 Accepts]: Start accepts. Automaton has 155663 states and 709666 transitions. Word has length 2 [2023-12-02 15:03:40,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:40,006 INFO L495 AbstractCegarLoop]: Abstraction has 155663 states and 709666 transitions. [2023-12-02 15:03:40,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:40,007 INFO L276 IsEmpty]: Start isEmpty. Operand 155663 states and 709666 transitions. [2023-12-02 15:03:40,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 15:03:40,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:40,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 15:03:40,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:03:40,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:03:40,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:40,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:40,209 INFO L85 PathProgramCache]: Analyzing trace with hash 28959, now seen corresponding path program 1 times [2023-12-02 15:03:40,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:03:40,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984749972] [2023-12-02 15:03:40,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:40,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:03:40,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:03:40,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:03:40,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 15:03:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:40,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:03:40,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:03:40,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 6 treesize of output 5 [2023-12-02 15:03:40,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:40,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:03:40,350 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:03:40,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984749972] [2023-12-02 15:03:40,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984749972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:40,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:40,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:03:40,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087965338] [2023-12-02 15:03:40,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:40,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:03:40,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:03:40,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:03:40,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:03:40,354 INFO L87 Difference]: Start difference. First operand 155663 states and 709666 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:42,478 INFO L93 Difference]: Finished difference Result 155662 states and 709665 transitions. [2023-12-02 15:03:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:03:42,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2023-12-02 15:03:42,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:44,041 INFO L225 Difference]: With dead ends: 155662 [2023-12-02 15:03:44,041 INFO L226 Difference]: Without dead ends: 155662 [2023-12-02 15:03:44,042 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 [2023-12-02 15:03:44,044 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 66 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:44,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 41 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:03:44,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155662 states. [2023-12-02 15:03:49,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155662 to 155662. [2023-12-02 15:03:49,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155662 states, 155269 states have (on average 4.5705517521205135) internal successors, (709665), 155661 states have internal predecessors, (709665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:51,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155662 states to 155662 states and 709665 transitions. [2023-12-02 15:03:51,125 INFO L78 Accepts]: Start accepts. Automaton has 155662 states and 709665 transitions. Word has length 2 [2023-12-02 15:03:51,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:03:51,125 INFO L495 AbstractCegarLoop]: Abstraction has 155662 states and 709665 transitions. [2023-12-02 15:03:51,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:51,126 INFO L276 IsEmpty]: Start isEmpty. Operand 155662 states and 709665 transitions. [2023-12-02 15:03:51,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 15:03:51,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:03:51,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 15:03:51,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 15:03:51,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:03:51,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:03:51,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:03:51,329 INFO L85 PathProgramCache]: Analyzing trace with hash 863616262, now seen corresponding path program 1 times [2023-12-02 15:03:51,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:03:51,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109680588] [2023-12-02 15:03:51,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:03:51,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:03:51,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:03:51,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:03:51,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 15:03:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:03:51,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:03:51,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:03:51,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 6 treesize of output 7 [2023-12-02 15:03:51,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:03:51,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:03:51,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:03:51,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109680588] [2023-12-02 15:03:51,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109680588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:03:51,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:03:51,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:03:51,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899791140] [2023-12-02 15:03:51,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:03:51,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:03:51,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:03:51,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:03:51,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:03:51,467 INFO L87 Difference]: Start difference. First operand 155662 states and 709665 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:03:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:03:53,485 INFO L93 Difference]: Finished difference Result 155655 states and 709652 transitions. [2023-12-02 15:03:53,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:03:53,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2023-12-02 15:03:53,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:03:55,125 INFO L225 Difference]: With dead ends: 155655 [2023-12-02 15:03:55,125 INFO L226 Difference]: Without dead ends: 155655 [2023-12-02 15:03:55,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:03:55,127 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 63 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:03:55,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 45 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:03:55,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155655 states. [2023-12-02 15:04:00,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155655 to 155655. [2023-12-02 15:04:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155655 states, 155263 states have (on average 4.570644648113201) internal successors, (709652), 155654 states have internal predecessors, (709652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:01,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155655 states to 155655 states and 709652 transitions. [2023-12-02 15:04:01,823 INFO L78 Accepts]: Start accepts. Automaton has 155655 states and 709652 transitions. Word has length 5 [2023-12-02 15:04:01,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:01,823 INFO L495 AbstractCegarLoop]: Abstraction has 155655 states and 709652 transitions. [2023-12-02 15:04:01,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:01,824 INFO L276 IsEmpty]: Start isEmpty. Operand 155655 states and 709652 transitions. [2023-12-02 15:04:01,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 15:04:01,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:01,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 15:04:01,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 15:04:02,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:02,025 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:04:02,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:02,026 INFO L85 PathProgramCache]: Analyzing trace with hash 863616263, now seen corresponding path program 1 times [2023-12-02 15:04:02,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:04:02,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026721537] [2023-12-02 15:04:02,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:02,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:02,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:04:02,028 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:04:02,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 15:04:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:02,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:04:02,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:04:02,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 6 treesize of output 5 [2023-12-02 15:04:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:04:02,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:04:02,155 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:04:02,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026721537] [2023-12-02 15:04:02,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026721537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:02,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:02,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:04:02,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840304485] [2023-12-02 15:04:02,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:02,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:02,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:04:02,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:02,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:02,157 INFO L87 Difference]: Start difference. First operand 155655 states and 709652 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:04,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:04,157 INFO L93 Difference]: Finished difference Result 155648 states and 709639 transitions. [2023-12-02 15:04:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:04,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2023-12-02 15:04:04,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:05,545 INFO L225 Difference]: With dead ends: 155648 [2023-12-02 15:04:05,545 INFO L226 Difference]: Without dead ends: 155648 [2023-12-02 15:04:05,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:05,546 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 62 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:05,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 46 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:04:05,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155648 states. [2023-12-02 15:04:10,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155648 to 155648. [2023-12-02 15:04:10,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155648 states, 155257 states have (on average 4.570737551285933) internal successors, (709639), 155647 states have internal predecessors, (709639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:11,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155648 states to 155648 states and 709639 transitions. [2023-12-02 15:04:11,661 INFO L78 Accepts]: Start accepts. Automaton has 155648 states and 709639 transitions. Word has length 5 [2023-12-02 15:04:11,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:11,661 INFO L495 AbstractCegarLoop]: Abstraction has 155648 states and 709639 transitions. [2023-12-02 15:04:11,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:11,661 INFO L276 IsEmpty]: Start isEmpty. Operand 155648 states and 709639 transitions. [2023-12-02 15:04:11,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 15:04:11,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:11,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:11,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-02 15:04:11,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:11,862 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:04:11,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1138880808, now seen corresponding path program 1 times [2023-12-02 15:04:11,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:04:11,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971567207] [2023-12-02 15:04:11,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:11,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:11,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:04:11,864 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:04:11,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 15:04:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:11,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:04:11,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:04:11,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 6 treesize of output 7 [2023-12-02 15:04:11,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:04:11,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:04:11,973 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:04:11,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971567207] [2023-12-02 15:04:11,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971567207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:11,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:11,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:04:11,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227179926] [2023-12-02 15:04:11,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:11,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:11,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:04:11,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:11,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:11,975 INFO L87 Difference]: Start difference. First operand 155648 states and 709639 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-12-02 15:04:14,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:14,414 INFO L93 Difference]: Finished difference Result 155599 states and 709506 transitions. [2023-12-02 15:04:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:14,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2023-12-02 15:04:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:15,918 INFO L225 Difference]: With dead ends: 155599 [2023-12-02 15:04:15,918 INFO L226 Difference]: Without dead ends: 155599 [2023-12-02 15:04:15,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:15,920 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 59 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:15,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 50 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:04:16,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155599 states. [2023-12-02 15:04:21,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155599 to 155599. [2023-12-02 15:04:21,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155599 states, 155209 states have (on average 4.571294190414216) internal successors, (709506), 155598 states have internal predecessors, (709506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155599 states to 155599 states and 709506 transitions. [2023-12-02 15:04:22,629 INFO L78 Accepts]: Start accepts. Automaton has 155599 states and 709506 transitions. Word has length 8 [2023-12-02 15:04:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:22,631 INFO L495 AbstractCegarLoop]: Abstraction has 155599 states and 709506 transitions. [2023-12-02 15:04:22,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-12-02 15:04:22,631 INFO L276 IsEmpty]: Start isEmpty. Operand 155599 states and 709506 transitions. [2023-12-02 15:04:22,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 15:04:22,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:22,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:22,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 15:04:22,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:22,836 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:04:22,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:22,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1138880809, now seen corresponding path program 1 times [2023-12-02 15:04:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:04:22,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517305670] [2023-12-02 15:04:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:22,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:22,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:04:22,839 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:04:22,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 15:04:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:22,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:04:22,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:04:23,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 6 treesize of output 5 [2023-12-02 15:04:23,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:04:23,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:04:23,013 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:04:23,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517305670] [2023-12-02 15:04:23,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517305670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:23,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:23,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:04:23,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83225325] [2023-12-02 15:04:23,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:23,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:23,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:04:23,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:23,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:23,016 INFO L87 Difference]: Start difference. First operand 155599 states and 709506 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-12-02 15:04:24,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:24,977 INFO L93 Difference]: Finished difference Result 155550 states and 709373 transitions. [2023-12-02 15:04:24,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:24,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2023-12-02 15:04:24,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:25,945 INFO L225 Difference]: With dead ends: 155550 [2023-12-02 15:04:25,945 INFO L226 Difference]: Without dead ends: 155550 [2023-12-02 15:04:25,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:25,946 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 58 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:25,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 51 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:04:26,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155550 states. [2023-12-02 15:04:30,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155550 to 155550. [2023-12-02 15:04:30,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155550 states, 155161 states have (on average 4.571851173941906) internal successors, (709373), 155549 states have internal predecessors, (709373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:32,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155550 states to 155550 states and 709373 transitions. [2023-12-02 15:04:32,322 INFO L78 Accepts]: Start accepts. Automaton has 155550 states and 709373 transitions. Word has length 8 [2023-12-02 15:04:32,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:32,322 INFO L495 AbstractCegarLoop]: Abstraction has 155550 states and 709373 transitions. [2023-12-02 15:04:32,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-12-02 15:04:32,322 INFO L276 IsEmpty]: Start isEmpty. Operand 155550 states and 709373 transitions. [2023-12-02 15:04:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 15:04:32,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:32,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:32,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-02 15:04:32,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:32,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:04:32,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:32,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1842566666, now seen corresponding path program 1 times [2023-12-02 15:04:32,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:04:32,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448754898] [2023-12-02 15:04:32,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:32,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:32,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:04:32,527 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:04:32,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 15:04:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:32,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:04:32,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:04:32,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 6 treesize of output 7 [2023-12-02 15:04:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:04:32,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:04:32,654 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:04:32,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448754898] [2023-12-02 15:04:32,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448754898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:32,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:32,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:04:32,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606467125] [2023-12-02 15:04:32,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:32,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:32,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:04:32,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:32,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:32,656 INFO L87 Difference]: Start difference. First operand 155550 states and 709373 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:34,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:34,455 INFO L93 Difference]: Finished difference Result 154962 states and 707238 transitions. [2023-12-02 15:04:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:34,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 15:04:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:35,445 INFO L225 Difference]: With dead ends: 154962 [2023-12-02 15:04:35,445 INFO L226 Difference]: Without dead ends: 154962 [2023-12-02 15:04:35,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:35,446 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 55 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:35,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 53 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:04:35,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154962 states. [2023-12-02 15:04:40,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154962 to 154962. [2023-12-02 15:04:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154962 states, 154579 states have (on average 4.575252783366434) internal successors, (707238), 154961 states have internal predecessors, (707238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:41,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154962 states to 154962 states and 707238 transitions. [2023-12-02 15:04:41,830 INFO L78 Accepts]: Start accepts. Automaton has 154962 states and 707238 transitions. Word has length 11 [2023-12-02 15:04:41,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:41,830 INFO L495 AbstractCegarLoop]: Abstraction has 154962 states and 707238 transitions. [2023-12-02 15:04:41,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:41,831 INFO L276 IsEmpty]: Start isEmpty. Operand 154962 states and 707238 transitions. [2023-12-02 15:04:41,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 15:04:41,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:41,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:41,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-02 15:04:42,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:42,033 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:04:42,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:42,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1842566665, now seen corresponding path program 1 times [2023-12-02 15:04:42,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:04:42,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565587426] [2023-12-02 15:04:42,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:42,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:42,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:04:42,036 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:04:42,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 15:04:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:42,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:04:42,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:04:42,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 6 treesize of output 5 [2023-12-02 15:04:42,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:04:42,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:04:42,165 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:04:42,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565587426] [2023-12-02 15:04:42,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565587426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:42,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:42,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:04:42,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26606089] [2023-12-02 15:04:42,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:42,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:42,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:04:42,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:42,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:42,168 INFO L87 Difference]: Start difference. First operand 154962 states and 707238 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:44,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:44,270 INFO L93 Difference]: Finished difference Result 154374 states and 705103 transitions. [2023-12-02 15:04:44,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:44,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 15:04:44,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:45,262 INFO L225 Difference]: With dead ends: 154374 [2023-12-02 15:04:45,262 INFO L226 Difference]: Without dead ends: 154374 [2023-12-02 15:04:45,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:45,263 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 54 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:45,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 54 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:04:46,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154374 states. [2023-12-02 15:04:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154374 to 154374. [2023-12-02 15:04:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154374 states, 153997 states have (on average 4.578680104157873) internal successors, (705103), 154373 states have internal predecessors, (705103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154374 states to 154374 states and 705103 transitions. [2023-12-02 15:04:52,086 INFO L78 Accepts]: Start accepts. Automaton has 154374 states and 705103 transitions. Word has length 11 [2023-12-02 15:04:52,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:52,086 INFO L495 AbstractCegarLoop]: Abstraction has 154374 states and 705103 transitions. [2023-12-02 15:04:52,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:52,087 INFO L276 IsEmpty]: Start isEmpty. Operand 154374 states and 705103 transitions. [2023-12-02 15:04:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 15:04:52,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:52,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:52,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-02 15:04:52,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:52,289 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:04:52,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:52,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1284886535, now seen corresponding path program 1 times [2023-12-02 15:04:52,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:04:52,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111771516] [2023-12-02 15:04:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:52,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:04:52,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:04:52,291 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:04:52,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 15:04:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:52,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:04:52,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:04:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:04:52,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:04:52,433 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:04:52,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111771516] [2023-12-02 15:04:52,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111771516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:52,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:52,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:04:52,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822774695] [2023-12-02 15:04:52,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:52,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:52,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:04:52,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:52,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:52,436 INFO L87 Difference]: Start difference. First operand 154374 states and 705103 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2023-12-02 15:04:54,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:54,847 INFO L93 Difference]: Finished difference Result 211606 states and 952567 transitions. [2023-12-02 15:04:54,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:54,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2023-12-02 15:04:54,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:56,903 INFO L225 Difference]: With dead ends: 211606 [2023-12-02 15:04:56,903 INFO L226 Difference]: Without dead ends: 211606 [2023-12-02 15:04:56,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:56,904 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 49 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:56,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 46 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:04:57,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211606 states. [2023-12-02 15:05:02,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211606 to 141487. [2023-12-02 15:05:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141487 states, 141173 states have (on average 4.548985995905733) internal successors, (642194), 141486 states have internal predecessors, (642194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141487 states to 141487 states and 642194 transitions. [2023-12-02 15:05:03,464 INFO L78 Accepts]: Start accepts. Automaton has 141487 states and 642194 transitions. Word has length 12 [2023-12-02 15:05:03,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:03,464 INFO L495 AbstractCegarLoop]: Abstraction has 141487 states and 642194 transitions. [2023-12-02 15:05:03,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2023-12-02 15:05:03,464 INFO L276 IsEmpty]: Start isEmpty. Operand 141487 states and 642194 transitions. [2023-12-02 15:05:03,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 15:05:03,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:03,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:03,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-02 15:05:03,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:03,666 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:03,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:03,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1176775971, now seen corresponding path program 1 times [2023-12-02 15:05:03,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:03,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296699604] [2023-12-02 15:05:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:03,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:03,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:03,669 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:03,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 15:05:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:03,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:05:03,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:03,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:03,802 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:03,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296699604] [2023-12-02 15:05:03,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296699604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:03,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:03,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:05:03,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534055432] [2023-12-02 15:05:03,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:03,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:05:03,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:03,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:05:03,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:05:03,803 INFO L87 Difference]: Start difference. First operand 141487 states and 642194 transitions. Second operand has 3 states, 2 states have (on average 6.5) 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) [2023-12-02 15:05:06,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:06,307 INFO L93 Difference]: Finished difference Result 171573 states and 777364 transitions. [2023-12-02 15:05:06,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:05:06,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) 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 [2023-12-02 15:05:06,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:07,441 INFO L225 Difference]: With dead ends: 171573 [2023-12-02 15:05:07,441 INFO L226 Difference]: Without dead ends: 171573 [2023-12-02 15:05:07,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:05:07,442 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 45 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:07,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 69 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 15:05:07,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171573 states. [2023-12-02 15:05:12,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171573 to 151581. [2023-12-02 15:05:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151581 states, 151283 states have (on average 4.6832624947945245) internal successors, (708498), 151580 states have internal predecessors, (708498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151581 states to 151581 states and 708498 transitions. [2023-12-02 15:05:13,962 INFO L78 Accepts]: Start accepts. Automaton has 151581 states and 708498 transitions. Word has length 13 [2023-12-02 15:05:13,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:13,962 INFO L495 AbstractCegarLoop]: Abstraction has 151581 states and 708498 transitions. [2023-12-02 15:05:13,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) 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) [2023-12-02 15:05:13,962 INFO L276 IsEmpty]: Start isEmpty. Operand 151581 states and 708498 transitions. [2023-12-02 15:05:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 15:05:13,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:13,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:13,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-02 15:05:14,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:14,164 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:14,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:14,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1176775969, now seen corresponding path program 1 times [2023-12-02 15:05:14,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:14,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013953402] [2023-12-02 15:05:14,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:14,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:14,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:14,166 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:14,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-02 15:05:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:14,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 15:05:14,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:14,320 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-12-02 15:05:14,321 INFO L378 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 21 treesize of output 20 [2023-12-02 15:05:14,384 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-12-02 15:05:14,384 INFO L378 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 21 treesize of output 20 [2023-12-02 15:05:14,424 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 15:05:14,424 INFO L378 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 14 treesize of output 20 [2023-12-02 15:05:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:14,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:14,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:14,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013953402] [2023-12-02 15:05:14,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013953402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:14,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:14,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:05:14,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060411761] [2023-12-02 15:05:14,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:14,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:05:14,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:14,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:05:14,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:05:14,485 INFO L87 Difference]: Start difference. First operand 151581 states and 708498 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:15,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:15,511 INFO L93 Difference]: Finished difference Result 97044 states and 443996 transitions. [2023-12-02 15:05:15,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:05:15,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-02 15:05:15,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:16,501 INFO L225 Difference]: With dead ends: 97044 [2023-12-02 15:05:16,501 INFO L226 Difference]: Without dead ends: 97044 [2023-12-02 15:05:16,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:05:16,501 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 43 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:16,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 37 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:05:16,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97044 states. [2023-12-02 15:05:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97044 to 97044. [2023-12-02 15:05:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97044 states, 96917 states have (on average 4.581198344975598) internal successors, (443996), 97043 states have internal predecessors, (443996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:19,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97044 states to 97044 states and 443996 transitions. [2023-12-02 15:05:19,876 INFO L78 Accepts]: Start accepts. Automaton has 97044 states and 443996 transitions. Word has length 13 [2023-12-02 15:05:19,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:19,877 INFO L495 AbstractCegarLoop]: Abstraction has 97044 states and 443996 transitions. [2023-12-02 15:05:19,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:19,877 INFO L276 IsEmpty]: Start isEmpty. Operand 97044 states and 443996 transitions. [2023-12-02 15:05:19,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 15:05:19,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:19,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:19,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-02 15:05:20,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:20,078 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:20,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:20,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1176775968, now seen corresponding path program 1 times [2023-12-02 15:05:20,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:20,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084049884] [2023-12-02 15:05:20,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:20,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:20,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:20,081 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:20,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-02 15:05:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:20,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 15:05:20,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:20,278 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-12-02 15:05:20,278 INFO L378 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 21 treesize of output 20 [2023-12-02 15:05:20,285 INFO L378 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 14 treesize of output 9 [2023-12-02 15:05:20,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:05:20,348 INFO L378 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 14 treesize of output 9 [2023-12-02 15:05:20,402 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-12-02 15:05:20,402 INFO L378 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 12 treesize of output 14 [2023-12-02 15:05:20,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:20,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:20,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:20,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084049884] [2023-12-02 15:05:20,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084049884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:20,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:20,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:05:20,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184462006] [2023-12-02 15:05:20,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:20,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:05:20,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:20,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:05:20,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:05:20,457 INFO L87 Difference]: Start difference. First operand 97044 states and 443996 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) [2023-12-02 15:05:21,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:21,059 INFO L93 Difference]: Finished difference Result 60147 states and 260302 transitions. [2023-12-02 15:05:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:05:21,060 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 [2023-12-02 15:05:21,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:21,923 INFO L225 Difference]: With dead ends: 60147 [2023-12-02 15:05:21,923 INFO L226 Difference]: Without dead ends: 58334 [2023-12-02 15:05:21,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:05:21,925 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 71 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:21,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 37 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:05:22,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58334 states. [2023-12-02 15:05:23,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58334 to 52552. [2023-12-02 15:05:23,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52552 states, 52526 states have (on average 4.383162624224194) internal successors, (230230), 52551 states have internal predecessors, (230230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:23,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52552 states to 52552 states and 230230 transitions. [2023-12-02 15:05:23,782 INFO L78 Accepts]: Start accepts. Automaton has 52552 states and 230230 transitions. Word has length 13 [2023-12-02 15:05:23,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:23,782 INFO L495 AbstractCegarLoop]: Abstraction has 52552 states and 230230 transitions. [2023-12-02 15:05:23,782 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) [2023-12-02 15:05:23,783 INFO L276 IsEmpty]: Start isEmpty. Operand 52552 states and 230230 transitions. [2023-12-02 15:05:23,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 15:05:23,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:23,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:23,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-02 15:05:23,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:23,986 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:23,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:23,987 INFO L85 PathProgramCache]: Analyzing trace with hash -2120677991, now seen corresponding path program 1 times [2023-12-02 15:05:23,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:23,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395743902] [2023-12-02 15:05:23,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:23,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:23,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:23,988 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:23,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-02 15:05:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:24,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:05:24,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:24,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:24,161 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:24,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395743902] [2023-12-02 15:05:24,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395743902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:24,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:24,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:05:24,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996066914] [2023-12-02 15:05:24,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:24,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:05:24,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:24,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:05:24,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:05:24,163 INFO L87 Difference]: Start difference. First operand 52552 states and 230230 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:24,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:24,584 INFO L93 Difference]: Finished difference Result 40703 states and 169309 transitions. [2023-12-02 15:05:24,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:05:24,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-12-02 15:05:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:24,759 INFO L225 Difference]: With dead ends: 40703 [2023-12-02 15:05:24,759 INFO L226 Difference]: Without dead ends: 38302 [2023-12-02 15:05:24,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:05:24,760 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 86 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:24,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 59 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:05:24,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38302 states. [2023-12-02 15:05:25,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38302 to 38302. [2023-12-02 15:05:25,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38302 states, 38276 states have (on average 4.1881335562754725) internal successors, (160305), 38301 states have internal predecessors, (160305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:26,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38302 states to 38302 states and 160305 transitions. [2023-12-02 15:05:26,118 INFO L78 Accepts]: Start accepts. Automaton has 38302 states and 160305 transitions. Word has length 17 [2023-12-02 15:05:26,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:26,118 INFO L495 AbstractCegarLoop]: Abstraction has 38302 states and 160305 transitions. [2023-12-02 15:05:26,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 38302 states and 160305 transitions. [2023-12-02 15:05:26,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 15:05:26,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:26,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:26,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-02 15:05:26,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:26,327 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:26,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:26,328 INFO L85 PathProgramCache]: Analyzing trace with hash 56742060, now seen corresponding path program 1 times [2023-12-02 15:05:26,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:26,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013330575] [2023-12-02 15:05:26,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:26,328 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:26,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:26,329 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:26,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-02 15:05:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:26,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:05:26,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:26,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:26,545 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:26,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013330575] [2023-12-02 15:05:26,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013330575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:26,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:26,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 15:05:26,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689823008] [2023-12-02 15:05:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:26,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:05:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:26,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:05:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:05:26,548 INFO L87 Difference]: Start difference. First operand 38302 states and 160305 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:26,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:26,983 INFO L93 Difference]: Finished difference Result 20478 states and 79669 transitions. [2023-12-02 15:05:26,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 15:05:26,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-12-02 15:05:26,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:27,064 INFO L225 Difference]: With dead ends: 20478 [2023-12-02 15:05:27,064 INFO L226 Difference]: Without dead ends: 18702 [2023-12-02 15:05:27,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:05:27,065 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 145 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:27,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 94 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:05:27,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18702 states. [2023-12-02 15:05:27,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18702 to 18702. [2023-12-02 15:05:27,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18702 states, 18676 states have (on average 3.898854144356393) internal successors, (72815), 18701 states have internal predecessors, (72815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:27,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18702 states to 18702 states and 72815 transitions. [2023-12-02 15:05:27,880 INFO L78 Accepts]: Start accepts. Automaton has 18702 states and 72815 transitions. Word has length 22 [2023-12-02 15:05:27,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:27,881 INFO L495 AbstractCegarLoop]: Abstraction has 18702 states and 72815 transitions. [2023-12-02 15:05:27,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 18702 states and 72815 transitions. [2023-12-02 15:05:27,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 15:05:27,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:27,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:27,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-02 15:05:28,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:28,104 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:28,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash -528415482, now seen corresponding path program 1 times [2023-12-02 15:05:28,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:28,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886102334] [2023-12-02 15:05:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:28,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:28,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:28,106 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:28,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-02 15:05:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:28,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:05:28,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:28,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:28,319 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:28,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886102334] [2023-12-02 15:05:28,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886102334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:28,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:28,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:05:28,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850459252] [2023-12-02 15:05:28,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:28,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:05:28,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:28,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:05:28,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:05:28,321 INFO L87 Difference]: Start difference. First operand 18702 states and 72815 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:28,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:28,753 INFO L93 Difference]: Finished difference Result 9338 states and 35071 transitions. [2023-12-02 15:05:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:05:28,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-12-02 15:05:28,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:28,779 INFO L225 Difference]: With dead ends: 9338 [2023-12-02 15:05:28,779 INFO L226 Difference]: Without dead ends: 8562 [2023-12-02 15:05:28,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:05:28,780 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 198 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:28,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 171 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:05:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2023-12-02 15:05:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 8562. [2023-12-02 15:05:28,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8562 states, 8548 states have (on average 3.7654422087037904) internal successors, (32187), 8561 states have internal predecessors, (32187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:28,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8562 states to 8562 states and 32187 transitions. [2023-12-02 15:05:28,981 INFO L78 Accepts]: Start accepts. Automaton has 8562 states and 32187 transitions. Word has length 27 [2023-12-02 15:05:28,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:28,981 INFO L495 AbstractCegarLoop]: Abstraction has 8562 states and 32187 transitions. [2023-12-02 15:05:28,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:28,981 INFO L276 IsEmpty]: Start isEmpty. Operand 8562 states and 32187 transitions. [2023-12-02 15:05:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 15:05:28,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:28,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:28,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-02 15:05:29,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:29,196 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:29,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:29,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1604607499, now seen corresponding path program 1 times [2023-12-02 15:05:29,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:29,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44684402] [2023-12-02 15:05:29,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:29,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:29,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:29,198 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:29,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-02 15:05:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:29,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:05:29,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:29,438 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:29,439 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:29,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44684402] [2023-12-02 15:05:29,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44684402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:29,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:29,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 15:05:29,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204800873] [2023-12-02 15:05:29,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:29,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:05:29,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:29,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:05:29,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:05:29,441 INFO L87 Difference]: Start difference. First operand 8562 states and 32187 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:29,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:29,919 INFO L93 Difference]: Finished difference Result 6386 states and 24499 transitions. [2023-12-02 15:05:29,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:05:29,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2023-12-02 15:05:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:29,937 INFO L225 Difference]: With dead ends: 6386 [2023-12-02 15:05:29,937 INFO L226 Difference]: Without dead ends: 6210 [2023-12-02 15:05:29,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-02 15:05:29,938 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 224 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:29,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 256 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 15:05:29,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6210 states. [2023-12-02 15:05:30,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6210 to 6210. [2023-12-02 15:05:30,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6210 states, 6206 states have (on average 3.85095069287786) internal successors, (23899), 6209 states have internal predecessors, (23899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:30,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6210 states to 6210 states and 23899 transitions. [2023-12-02 15:05:30,072 INFO L78 Accepts]: Start accepts. Automaton has 6210 states and 23899 transitions. Word has length 32 [2023-12-02 15:05:30,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:30,073 INFO L495 AbstractCegarLoop]: Abstraction has 6210 states and 23899 transitions. [2023-12-02 15:05:30,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:30,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6210 states and 23899 transitions. [2023-12-02 15:05:30,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 15:05:30,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:30,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:30,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-02 15:05:30,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:30,287 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:30,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:30,287 INFO L85 PathProgramCache]: Analyzing trace with hash -406926569, now seen corresponding path program 1 times [2023-12-02 15:05:30,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:30,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774603056] [2023-12-02 15:05:30,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:30,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:30,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:30,289 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:30,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-02 15:05:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:30,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:05:30,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:30,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:30,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:30,507 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:30,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774603056] [2023-12-02 15:05:30,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774603056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:30,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:30,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 15:05:30,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313772154] [2023-12-02 15:05:30,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:30,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:05:30,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:30,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:05:30,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:05:30,509 INFO L87 Difference]: Start difference. First operand 6210 states and 23899 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:30,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:30,689 INFO L93 Difference]: Finished difference Result 8378 states and 31607 transitions. [2023-12-02 15:05:30,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:05:30,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2023-12-02 15:05:30,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:30,717 INFO L225 Difference]: With dead ends: 8378 [2023-12-02 15:05:30,717 INFO L226 Difference]: Without dead ends: 8378 [2023-12-02 15:05:30,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:05:30,718 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 57 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:30,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 86 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:05:30,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8378 states. [2023-12-02 15:05:30,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8378 to 6210. [2023-12-02 15:05:30,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6210 states, 6206 states have (on average 3.8035771833709315) internal successors, (23605), 6209 states have internal predecessors, (23605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:30,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6210 states to 6210 states and 23605 transitions. [2023-12-02 15:05:30,864 INFO L78 Accepts]: Start accepts. Automaton has 6210 states and 23605 transitions. Word has length 37 [2023-12-02 15:05:30,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:30,864 INFO L495 AbstractCegarLoop]: Abstraction has 6210 states and 23605 transitions. [2023-12-02 15:05:30,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:30,865 INFO L276 IsEmpty]: Start isEmpty. Operand 6210 states and 23605 transitions. [2023-12-02 15:05:30,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 15:05:30,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:30,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:30,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-02 15:05:31,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:31,079 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:31,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:31,079 INFO L85 PathProgramCache]: Analyzing trace with hash -781262300, now seen corresponding path program 1 times [2023-12-02 15:05:31,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:31,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867066583] [2023-12-02 15:05:31,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:31,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:31,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:31,081 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:31,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-02 15:05:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:31,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:05:31,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:31,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:31,276 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:31,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867066583] [2023-12-02 15:05:31,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867066583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:31,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:31,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:05:31,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962021209] [2023-12-02 15:05:31,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:31,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:05:31,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:31,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:05:31,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:05:31,278 INFO L87 Difference]: Start difference. First operand 6210 states and 23605 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:31,432 INFO L93 Difference]: Finished difference Result 6194 states and 23557 transitions. [2023-12-02 15:05:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:05:31,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2023-12-02 15:05:31,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:31,449 INFO L225 Difference]: With dead ends: 6194 [2023-12-02 15:05:31,449 INFO L226 Difference]: Without dead ends: 6194 [2023-12-02 15:05:31,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:05:31,449 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 66 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:31,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 70 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:05:31,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2023-12-02 15:05:31,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 6194. [2023-12-02 15:05:31,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 6191 states have (on average 3.8050395735745437) internal successors, (23557), 6193 states have internal predecessors, (23557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:31,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 23557 transitions. [2023-12-02 15:05:31,733 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 23557 transitions. Word has length 37 [2023-12-02 15:05:31,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:31,734 INFO L495 AbstractCegarLoop]: Abstraction has 6194 states and 23557 transitions. [2023-12-02 15:05:31,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 23557 transitions. [2023-12-02 15:05:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 15:05:31,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:31,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:31,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-02 15:05:31,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:31,949 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:31,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:31,950 INFO L85 PathProgramCache]: Analyzing trace with hash -781262299, now seen corresponding path program 1 times [2023-12-02 15:05:31,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:31,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538088710] [2023-12-02 15:05:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:31,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:31,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:31,951 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:31,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-02 15:05:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:32,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:05:32,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:32,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:32,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:05:32,223 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:05:32,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538088710] [2023-12-02 15:05:32,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538088710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:32,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:32,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:05:32,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33776973] [2023-12-02 15:05:32,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:32,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:05:32,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:05:32,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:05:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:05:32,225 INFO L87 Difference]: Start difference. First operand 6194 states and 23557 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:32,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:32,413 INFO L93 Difference]: Finished difference Result 6178 states and 23509 transitions. [2023-12-02 15:05:32,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:05:32,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2023-12-02 15:05:32,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:32,430 INFO L225 Difference]: With dead ends: 6178 [2023-12-02 15:05:32,430 INFO L226 Difference]: Without dead ends: 6178 [2023-12-02 15:05:32,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:05:32,431 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 76 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:32,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 70 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:05:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6178 states. [2023-12-02 15:05:32,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6178 to 6178. [2023-12-02 15:05:32,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6178 states, 6176 states have (on average 3.806509067357513) internal successors, (23509), 6177 states have internal predecessors, (23509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:32,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 23509 transitions. [2023-12-02 15:05:32,563 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 23509 transitions. Word has length 37 [2023-12-02 15:05:32,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:32,563 INFO L495 AbstractCegarLoop]: Abstraction has 6178 states and 23509 transitions. [2023-12-02 15:05:32,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:05:32,564 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 23509 transitions. [2023-12-02 15:05:32,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 15:05:32,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:32,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:05:32,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-02 15:05:32,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:32,777 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:05:32,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:32,777 INFO L85 PathProgramCache]: Analyzing trace with hash -556124928, now seen corresponding path program 1 times [2023-12-02 15:05:32,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:05:32,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390597737] [2023-12-02 15:05:32,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:32,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:05:32,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:05:32,779 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:05:32,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-02 15:05:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:33,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 15:05:33,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:01,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:06:01,606 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:06:01,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390597737] [2023-12-02 15:06:01,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390597737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:06:01,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:06:01,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:06:01,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446839409] [2023-12-02 15:06:01,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:06:01,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:06:01,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:06:01,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:06:01,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=23, Unknown=8, NotChecked=0, Total=42 [2023-12-02 15:06:01,608 INFO L87 Difference]: Start difference. First operand 6178 states and 23509 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:06:03,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:05,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:07,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:10,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:12,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:14,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:16,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:18,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:20,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:22,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:24,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:26,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:28,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:30,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:32,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:34,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:37,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:39,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:41,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:44,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:46,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:50,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:52,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:56,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:06:58,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:00,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:02,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:05,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:07,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:09,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:11,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:13,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:15,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:17,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:19,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:21,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:24,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:26,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:28,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:30,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:32,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:34,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:37,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:38,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:40,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:42,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:44,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:46,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:49,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:51,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:53,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:55,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:57,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:07:59,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:01,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:03,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:06,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:08,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:10,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:12,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:17,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:19,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:21,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:22,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:24,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:27,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:29,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:31,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:33,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:35,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:37,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:39,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 15:08:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:08:39,819 INFO L93 Difference]: Finished difference Result 6162 states and 23461 transitions. [2023-12-02 15:08:39,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:08:39,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 15:08:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:08:39,835 INFO L225 Difference]: With dead ends: 6162 [2023-12-02 15:08:39,835 INFO L226 Difference]: Without dead ends: 6130 [2023-12-02 15:08:39,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=11, Invalid=23, Unknown=8, NotChecked=0, Total=42 [2023-12-02 15:08:39,835 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 48 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 82 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 82 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 158.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:08:39,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 172 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 82 Unknown, 0 Unchecked, 158.1s Time] [2023-12-02 15:08:39,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6130 states. [2023-12-02 15:08:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6130 to 6130. [2023-12-02 15:08:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6130 states, 6129 states have (on average 3.812204274759341) internal successors, (23365), 6129 states have internal predecessors, (23365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6130 states to 6130 states and 23365 transitions. [2023-12-02 15:08:39,954 INFO L78 Accepts]: Start accepts. Automaton has 6130 states and 23365 transitions. Word has length 41 [2023-12-02 15:08:39,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:08:39,954 INFO L495 AbstractCegarLoop]: Abstraction has 6130 states and 23365 transitions. [2023-12-02 15:08:39,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:39,955 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states and 23365 transitions. [2023-12-02 15:08:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 15:08:39,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:08:39,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:08:39,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-02 15:08:40,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:08:40,167 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:08:40,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:08:40,167 INFO L85 PathProgramCache]: Analyzing trace with hash -556122526, now seen corresponding path program 1 times [2023-12-02 15:08:40,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:08:40,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717166960] [2023-12-02 15:08:40,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:08:40,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:08:40,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:08:40,169 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:08:40,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-02 15:08:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:08:40,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:08:40,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:08:40,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:08:40,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:08:40,478 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:08:40,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717166960] [2023-12-02 15:08:40,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717166960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:08:40,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:08:40,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:08:40,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995430624] [2023-12-02 15:08:40,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:08:40,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:08:40,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:08:40,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:08:40,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:08:40,480 INFO L87 Difference]: Start difference. First operand 6130 states and 23365 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:40,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:08:40,845 INFO L93 Difference]: Finished difference Result 8170 states and 30983 transitions. [2023-12-02 15:08:40,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:08:40,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 15:08:40,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:08:40,859 INFO L225 Difference]: With dead ends: 8170 [2023-12-02 15:08:40,859 INFO L226 Difference]: Without dead ends: 3805 [2023-12-02 15:08:40,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:08:40,860 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 53 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:08:40,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 97 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:08:40,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2023-12-02 15:08:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3805. [2023-12-02 15:08:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3805 states, 3804 states have (on average 3.7092534174553102) internal successors, (14110), 3804 states have internal predecessors, (14110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:40,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3805 states to 3805 states and 14110 transitions. [2023-12-02 15:08:40,937 INFO L78 Accepts]: Start accepts. Automaton has 3805 states and 14110 transitions. Word has length 41 [2023-12-02 15:08:40,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:08:40,937 INFO L495 AbstractCegarLoop]: Abstraction has 3805 states and 14110 transitions. [2023-12-02 15:08:40,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:40,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3805 states and 14110 transitions. [2023-12-02 15:08:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 15:08:40,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:08:40,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:08:40,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-12-02 15:08:41,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:08:41,145 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:08:41,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:08:41,145 INFO L85 PathProgramCache]: Analyzing trace with hash -760053850, now seen corresponding path program 2 times [2023-12-02 15:08:41,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:08:41,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779217919] [2023-12-02 15:08:41,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 15:08:41,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:08:41,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:08:41,146 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:08:41,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-02 15:08:41,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 15:08:41,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:08:41,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:08:41,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:08:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:08:41,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:08:41,417 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:08:41,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779217919] [2023-12-02 15:08:41,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779217919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:08:41,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:08:41,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:08:41,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803314485] [2023-12-02 15:08:41,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:08:41,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:08:41,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:08:41,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:08:41,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:08:41,419 INFO L87 Difference]: Start difference. First operand 3805 states and 14110 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:41,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:08:41,812 INFO L93 Difference]: Finished difference Result 5365 states and 19664 transitions. [2023-12-02 15:08:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:08:41,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 15:08:41,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:08:41,821 INFO L225 Difference]: With dead ends: 5365 [2023-12-02 15:08:41,821 INFO L226 Difference]: Without dead ends: 2695 [2023-12-02 15:08:41,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:08:41,822 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 58 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:08:41,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 98 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 15:08:41,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2023-12-02 15:08:41,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2695. [2023-12-02 15:08:41,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2695 states, 2694 states have (on average 3.57275426874536) internal successors, (9625), 2694 states have internal predecessors, (9625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2695 states to 2695 states and 9625 transitions. [2023-12-02 15:08:41,878 INFO L78 Accepts]: Start accepts. Automaton has 2695 states and 9625 transitions. Word has length 41 [2023-12-02 15:08:41,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:08:41,878 INFO L495 AbstractCegarLoop]: Abstraction has 2695 states and 9625 transitions. [2023-12-02 15:08:41,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:41,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2695 states and 9625 transitions. [2023-12-02 15:08:41,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 15:08:41,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:08:41,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:08:41,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-02 15:08:42,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:08:42,084 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:08:42,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:08:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash 752911101, now seen corresponding path program 1 times [2023-12-02 15:08:42,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:08:42,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280658724] [2023-12-02 15:08:42,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:08:42,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:08:42,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:08:42,086 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:08:42,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-02 15:08:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:08:42,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:08:42,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:08:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:08:42,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:08:42,409 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:08:42,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280658724] [2023-12-02 15:08:42,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280658724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:08:42,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:08:42,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:08:42,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390435965] [2023-12-02 15:08:42,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:08:42,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:08:42,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:08:42,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:08:42,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:08:42,411 INFO L87 Difference]: Start difference. First operand 2695 states and 9625 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:42,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:08:42,716 INFO L93 Difference]: Finished difference Result 3735 states and 13321 transitions. [2023-12-02 15:08:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:08:42,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-02 15:08:42,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:08:42,720 INFO L225 Difference]: With dead ends: 3735 [2023-12-02 15:08:42,720 INFO L226 Difference]: Without dead ends: 1405 [2023-12-02 15:08:42,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:08:42,721 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 55 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:08:42,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 91 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:08:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2023-12-02 15:08:42,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1405. [2023-12-02 15:08:42,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 3.4472934472934473) internal successors, (4840), 1404 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:42,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 4840 transitions. [2023-12-02 15:08:42,742 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 4840 transitions. Word has length 41 [2023-12-02 15:08:42,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:08:42,743 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 4840 transitions. [2023-12-02 15:08:42,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:08:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 4840 transitions. [2023-12-02 15:08:42,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 15:08:42,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:08:42,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:08:42,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-02 15:08:42,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:08:42,946 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-12-02 15:08:42,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:08:42,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1349910948, now seen corresponding path program 3 times [2023-12-02 15:08:42,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:08:42,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150493608] [2023-12-02 15:08:42,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:08:42,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:08:42,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:08:42,947 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 15:08:42,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-02 15:08:43,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 15:08:43,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-12-02 15:08:43,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:08:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:08:43,453 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 15:08:43,453 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:08:43,454 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (69 of 70 remaining) [2023-12-02 15:08:43,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (68 of 70 remaining) [2023-12-02 15:08:43,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 70 remaining) [2023-12-02 15:08:43,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 70 remaining) [2023-12-02 15:08:43,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 70 remaining) [2023-12-02 15:08:43,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 70 remaining) [2023-12-02 15:08:43,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 70 remaining) [2023-12-02 15:08:43,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 70 remaining) [2023-12-02 15:08:43,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 70 remaining) [2023-12-02 15:08:43,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 70 remaining) [2023-12-02 15:08:43,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 70 remaining) [2023-12-02 15:08:43,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 70 remaining) [2023-12-02 15:08:43,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 70 remaining) [2023-12-02 15:08:43,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 70 remaining) [2023-12-02 15:08:43,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 70 remaining) [2023-12-02 15:08:43,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 70 remaining) [2023-12-02 15:08:43,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 70 remaining) [2023-12-02 15:08:43,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 70 remaining) [2023-12-02 15:08:43,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 70 remaining) [2023-12-02 15:08:43,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 70 remaining) [2023-12-02 15:08:43,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 70 remaining) [2023-12-02 15:08:43,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 70 remaining) [2023-12-02 15:08:43,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 70 remaining) [2023-12-02 15:08:43,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 70 remaining) [2023-12-02 15:08:43,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 70 remaining) [2023-12-02 15:08:43,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 70 remaining) [2023-12-02 15:08:43,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 70 remaining) [2023-12-02 15:08:43,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 70 remaining) [2023-12-02 15:08:43,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 70 remaining) [2023-12-02 15:08:43,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 70 remaining) [2023-12-02 15:08:43,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 70 remaining) [2023-12-02 15:08:43,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 70 remaining) [2023-12-02 15:08:43,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 70 remaining) [2023-12-02 15:08:43,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 70 remaining) [2023-12-02 15:08:43,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 70 remaining) [2023-12-02 15:08:43,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 70 remaining) [2023-12-02 15:08:43,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 70 remaining) [2023-12-02 15:08:43,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 70 remaining) [2023-12-02 15:08:43,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 70 remaining) [2023-12-02 15:08:43,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 70 remaining) [2023-12-02 15:08:43,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK (29 of 70 remaining) [2023-12-02 15:08:43,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 70 remaining) [2023-12-02 15:08:43,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 70 remaining) [2023-12-02 15:08:43,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 70 remaining) [2023-12-02 15:08:43,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 70 remaining) [2023-12-02 15:08:43,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (24 of 70 remaining) [2023-12-02 15:08:43,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 70 remaining) [2023-12-02 15:08:43,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 70 remaining) [2023-12-02 15:08:43,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 70 remaining) [2023-12-02 15:08:43,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 70 remaining) [2023-12-02 15:08:43,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 70 remaining) [2023-12-02 15:08:43,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 70 remaining) [2023-12-02 15:08:43,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 70 remaining) [2023-12-02 15:08:43,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 70 remaining) [2023-12-02 15:08:43,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 70 remaining) [2023-12-02 15:08:43,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 70 remaining) [2023-12-02 15:08:43,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 70 remaining) [2023-12-02 15:08:43,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 70 remaining) [2023-12-02 15:08:43,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 70 remaining) [2023-12-02 15:08:43,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 70 remaining) [2023-12-02 15:08:43,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 70 remaining) [2023-12-02 15:08:43,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 70 remaining) [2023-12-02 15:08:43,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 70 remaining) [2023-12-02 15:08:43,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 70 remaining) [2023-12-02 15:08:43,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 70 remaining) [2023-12-02 15:08:43,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 70 remaining) [2023-12-02 15:08:43,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 70 remaining) [2023-12-02 15:08:43,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 70 remaining) [2023-12-02 15:08:43,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 70 remaining) [2023-12-02 15:08:43,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 70 remaining) [2023-12-02 15:08:43,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-02 15:08:43,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 15:08:43,668 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:08:43,673 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 15:08:43,673 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:08:43,761 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre25 could not be translated [2023-12-02 15:08:43,763 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre27 could not be translated [2023-12-02 15:08:43,766 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre29 could not be translated [2023-12-02 15:08:43,767 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre31 could not be translated [2023-12-02 15:08:43,791 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-12-02 15:08:43,792 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet0 [2023-12-02 15:08:43,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:08:43 BasicIcfg [2023-12-02 15:08:43,807 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:08:43,807 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:08:43,807 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:08:43,808 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:08:43,808 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:03:17" (3/4) ... [2023-12-02 15:08:43,810 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:08:43,811 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:08:43,812 INFO L158 Benchmark]: Toolchain (without parser) took 329083.42ms. Allocated memory was 67.1MB in the beginning and 16.0GB in the end (delta: 15.9GB). Free memory was 31.9MB in the beginning and 13.6GB in the end (delta: -13.6GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2023-12-02 15:08:43,812 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:08:43,813 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.75ms. Allocated memory was 67.1MB in the beginning and 107.0MB in the end (delta: 39.8MB). Free memory was 31.7MB in the beginning and 62.9MB in the end (delta: -31.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-12-02 15:08:43,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.03ms. Allocated memory is still 107.0MB. Free memory was 62.9MB in the beginning and 60.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:08:43,813 INFO L158 Benchmark]: Boogie Preprocessor took 79.49ms. Allocated memory is still 107.0MB. Free memory was 60.1MB in the beginning and 84.2MB in the end (delta: -24.1MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-12-02 15:08:43,814 INFO L158 Benchmark]: RCFGBuilder took 1696.10ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 84.2MB in the beginning and 76.2MB in the end (delta: 8.0MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2023-12-02 15:08:43,814 INFO L158 Benchmark]: TraceAbstraction took 326575.31ms. Allocated memory was 130.0MB in the beginning and 16.0GB in the end (delta: 15.9GB). Free memory was 75.1MB in the beginning and 13.6GB in the end (delta: -13.5GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2023-12-02 15:08:43,814 INFO L158 Benchmark]: Witness Printer took 4.30ms. Allocated memory is still 16.0GB. Free memory was 13.6GB in the beginning and 13.6GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:08:43,815 INFO L338 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 67.1MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.75ms. Allocated memory was 67.1MB in the beginning and 107.0MB in the end (delta: 39.8MB). Free memory was 31.7MB in the beginning and 62.9MB in the end (delta: -31.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.03ms. Allocated memory is still 107.0MB. Free memory was 62.9MB in the beginning and 60.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.49ms. Allocated memory is still 107.0MB. Free memory was 60.1MB in the beginning and 84.2MB in the end (delta: -24.1MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1696.10ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 84.2MB in the beginning and 76.2MB in the end (delta: 8.0MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. * TraceAbstraction took 326575.31ms. Allocated memory was 130.0MB in the beginning and 16.0GB in the end (delta: 15.9GB). Free memory was 75.1MB in the beginning and 13.6GB in the end (delta: -13.5GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 4.30ms. Allocated memory is still 16.0GB. Free memory was 13.6GB in the beginning and 13.6GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet0 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L719] 0 _Bool __unbuffered_p3_EAX$flush_delayed; [L720] 0 int __unbuffered_p3_EAX$mem_tmp; [L721] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd0; [L722] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd1; [L723] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd2; [L724] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd3; [L725] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd4; [L726] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd0; [L727] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd1; [L728] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd2; [L729] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd3; [L730] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd4; [L731] 0 _Bool __unbuffered_p3_EAX$read_delayed; [L732] 0 int *__unbuffered_p3_EAX$read_delayed_var; [L733] 0 int __unbuffered_p3_EAX$w_buff0; [L734] 0 _Bool __unbuffered_p3_EAX$w_buff0_used; [L735] 0 int __unbuffered_p3_EAX$w_buff1; [L736] 0 _Bool __unbuffered_p3_EAX$w_buff1_used; [L738] 0 int a = 0; [L739] 0 _Bool main$tmp_guard0; [L740] 0 _Bool main$tmp_guard1; [L742] 0 int x = 0; [L744] 0 int y = 0; [L746] 0 int z = 0; [L747] 0 _Bool z$flush_delayed; [L748] 0 int z$mem_tmp; [L749] 0 _Bool z$r_buff0_thd0; [L750] 0 _Bool z$r_buff0_thd1; [L751] 0 _Bool z$r_buff0_thd2; [L752] 0 _Bool z$r_buff0_thd3; [L753] 0 _Bool z$r_buff0_thd4; [L754] 0 _Bool z$r_buff1_thd0; [L755] 0 _Bool z$r_buff1_thd1; [L756] 0 _Bool z$r_buff1_thd2; [L757] 0 _Bool z$r_buff1_thd3; [L758] 0 _Bool z$r_buff1_thd4; [L759] 0 _Bool z$read_delayed; [L760] 0 int *z$read_delayed_var; [L761] 0 int z$w_buff0; [L762] 0 _Bool z$w_buff0_used; [L763] 0 int z$w_buff1; [L764] 0 _Bool z$w_buff1_used; [L765] 0 _Bool weak$$choice0; [L766] 0 _Bool weak$$choice1; [L767] 0 _Bool weak$$choice2; [L875] 0 pthread_t t2709; [L876] FCALL, FORK 0 pthread_create(&t2709, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709={4:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L877] 0 pthread_t t2710; [L878] FCALL, FORK 0 pthread_create(&t2710, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709={4:0}, t2710={5:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L879] 0 pthread_t t2711; [L880] FCALL, FORK 0 pthread_create(&t2711, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709={4:0}, t2710={5:0}, t2711={7:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L881] 0 pthread_t t2712; [L882] FCALL, FORK 0 pthread_create(&t2712, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709={4:0}, t2710={5:0}, t2711={7:0}, t2712={6:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L831] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 4 z$flush_delayed = weak$$choice2 [L834] EXPR 4 \read(z) [L834] 4 z$mem_tmp = z [L835] 4 weak$$choice1 = __VERIFIER_nondet_bool() [L836] EXPR 4 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L836] EXPR 4 \read(z) [L836] EXPR 4 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L836] 4 z = !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L837] 4 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)))) [L838] 4 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)))) [L839] 4 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 || !weak$$choice1 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 : weak$$choice0)))) [L840] 4 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L841] 4 z$r_buff0_thd4 = weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L842] 4 z$r_buff1_thd4 = weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$r_buff1_thd4 : (_Bool)0) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L843] 4 __unbuffered_p3_EAX$read_delayed = (_Bool)1 [L844] 4 __unbuffered_p3_EAX$read_delayed_var = &z [L845] EXPR 4 \read(z) [L845] 4 __unbuffered_p3_EAX = z [L846] EXPR 4 z$flush_delayed ? z$mem_tmp : z [L846] EXPR 4 \read(z) [L846] EXPR 4 z$flush_delayed ? z$mem_tmp : z [L846] 4 z = z$flush_delayed ? z$mem_tmp : z [L847] 4 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L850] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L771] 1 __unbuffered_p0_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L774] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L779] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L786] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L853] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L853] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L853] EXPR 4 \read(z) [L853] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L853] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L853] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L854] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L855] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L856] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L857] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L789] 2 y = 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L794] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L801] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L804] 3 z$w_buff1 = z$w_buff0 [L805] 3 z$w_buff0 = 1 [L806] 3 z$w_buff1_used = z$w_buff0_used [L807] 3 z$w_buff0_used = (_Bool)1 [L808] CALL 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L808] RET 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L809] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L810] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L811] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L812] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L813] 3 z$r_buff1_thd4 = z$r_buff0_thd4 [L814] 3 z$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L817] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L817] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L818] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L819] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L820] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L821] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L824] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L860] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L884] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709={4:0}, t2710={5:0}, t2711={7:0}, t2712={6:0}, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L886] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L886] RET 0 assume_abort_if_not(main$tmp_guard0) [L888] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L888] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L888] EXPR 0 \read(z) [L888] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L888] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L888] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L889] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L890] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L891] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L892] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709={4:0}, t2710={5:0}, t2711={7:0}, t2712={6:0}, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L895] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L896] EXPR 0 __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L896] EXPR 0 weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX [L896] EXPR 0 \read(*__unbuffered_p3_EAX$read_delayed_var) [L896] EXPR 0 weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX [L896] EXPR 0 __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L896] 0 __unbuffered_p3_EAX = __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L897] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p1_EAX == 1 && __unbuffered_p2_EAX == 1 && __unbuffered_p3_EAX == 1) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709={4:0}, t2710={5:0}, t2711={7:0}, t2712={6:0}, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L899] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L17] 0 __assert_fail ("0", "thin002_power.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=128, weak$$choice1=2, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 873]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 876]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 882]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 151 locations, 70 error locations. Started 1 CEGAR loops. OverallTime: 326.2s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.6s, AutomataDifference: 202.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.4s, HoareTripleCheckerStatistics: 82 mSolverCounterUnknown, 1758 SdHoareTripleChecker+Valid, 164.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1758 mSDsluCounter, 1833 SdHoareTripleChecker+Invalid, 162.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1078 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2545 IncrementalHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 755 mSDtfsCounter, 2545 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 475 GetRequests, 401 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 16.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=336180occurred in iteration=0, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 75.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 98061 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 30.1s InterpolantComputationTime, 517 NumberOfCodeBlocks, 517 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 453 ConstructedInterpolants, 32 QuantifiedInterpolants, 22060 SizeOfPredicates, 25 NumberOfNonLiveVariables, 4078 ConjunctsInSsa, 121 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 15:08:43,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a04a6d5-abcc-4827-a003-5798cab02fc9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample