/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 16:45:01,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 16:45:01,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 16:45:01,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-07 16:45:01,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-07 16:45:01,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-07 16:45:01,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-07 16:45:01,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-07 16:45:01,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-07 16:45:01,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-07 16:45:01,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-07 16:45:01,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-07 16:45:01,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 16:45:01,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 16:45:02,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 16:45:02,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 16:45:02,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 16:45:02,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 16:45:02,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 16:45:02,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 16:45:02,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 16:45:02,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 16:45:02,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 16:45:02,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 16:45:02,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-07 16:45:02,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-07 16:45:02,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-07 16:45:02,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-07 16:45:02,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-07 16:45:02,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-07 16:45:02,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-07 16:45:02,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-07 16:45:02,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-07 16:45:02,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 16:45:02,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 16:45:02,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 16:45:02,070 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-07 16:45:02,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 16:45:02,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 16:45:02,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 16:45:02,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 16:45:02,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 16:45:02,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 16:45:02,124 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 16:45:02,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 16:45:02,125 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 16:45:02,125 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 16:45:02,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 16:45:02,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 16:45:02,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 16:45:02,127 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 16:45:02,127 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 16:45:02,127 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 16:45:02,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 16:45:02,128 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 16:45:02,128 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 16:45:02,128 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 16:45:02,128 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 16:45:02,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 16:45:02,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 16:45:02,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 16:45:02,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 16:45:02,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 16:45:02,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 16:45:02,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 16:45:02,130 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 16:45:02,130 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 16:45:02,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 16:45:02,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 16:45:02,131 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 16:45:02,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 16:45:02,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 16:45:02,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 16:45:02,610 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 16:45:02,611 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 16:45:02,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2021-10-07 16:45:02,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27c084fd3/a096867db54e4abbb7095573dc8cf0c5/FLAG77ea92465 [2021-10-07 16:45:03,374 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 16:45:03,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2021-10-07 16:45:03,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27c084fd3/a096867db54e4abbb7095573dc8cf0c5/FLAG77ea92465 [2021-10-07 16:45:03,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27c084fd3/a096867db54e4abbb7095573dc8cf0c5 [2021-10-07 16:45:03,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 16:45:03,688 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 16:45:03,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 16:45:03,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 16:45:03,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 16:45:03,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:45:03" (1/1) ... [2021-10-07 16:45:03,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@953b55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:03, skipping insertion in model container [2021-10-07 16:45:03,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:45:03" (1/1) ... [2021-10-07 16:45:03,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 16:45:03,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 16:45:03,937 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c[2873,2886] [2021-10-07 16:45:03,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 16:45:03,964 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-07 16:45:03,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 16:45:03,991 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c[2873,2886] [2021-10-07 16:45:03,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 16:45:04,002 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 16:45:04,037 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c[2873,2886] [2021-10-07 16:45:04,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 16:45:04,064 INFO L208 MainTranslator]: Completed translation [2021-10-07 16:45:04,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04 WrapperNode [2021-10-07 16:45:04,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 16:45:04,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 16:45:04,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 16:45:04,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 16:45:04,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 16:45:04,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 16:45:04,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 16:45:04,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 16:45:04,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 16:45:04,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 16:45:04,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 16:45:04,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 16:45:04,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (1/1) ... [2021-10-07 16:45:04,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 16:45:04,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 16:45:04,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 16:45:04,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 16:45:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 16:45:04,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 16:45:04,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 16:45:04,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 16:45:04,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 16:45:04,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 16:45:04,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 16:45:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 16:45:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-07 16:45:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 16:45:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 16:45:04,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 16:45:04,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 16:45:04,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 16:45:04,319 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 16:45:06,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 16:45:06,533 INFO L299 CfgBuilder]: Removed 31 assume(true) statements. [2021-10-07 16:45:06,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:45:06 BoogieIcfgContainer [2021-10-07 16:45:06,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 16:45:06,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 16:45:06,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 16:45:06,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 16:45:06,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 04:45:03" (1/3) ... [2021-10-07 16:45:06,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e9ea84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:45:06, skipping insertion in model container [2021-10-07 16:45:06,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:45:04" (2/3) ... [2021-10-07 16:45:06,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e9ea84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:45:06, skipping insertion in model container [2021-10-07 16:45:06,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:45:06" (3/3) ... [2021-10-07 16:45:06,546 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2021-10-07 16:45:06,553 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 16:45:06,553 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-10-07 16:45:06,553 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 16:45:06,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,612 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,613 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,613 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,613 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,613 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,613 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,614 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,614 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,614 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,617 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,618 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,618 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,618 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,618 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,621 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,622 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,623 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,624 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,624 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,624 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,625 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,625 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,626 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,626 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,626 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,626 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,626 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,627 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,627 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,627 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,627 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,627 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,628 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,628 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,629 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,629 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,629 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,629 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,629 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,630 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,630 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,631 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,631 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,631 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,631 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,632 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,632 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,633 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,633 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,633 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,633 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,636 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,636 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,636 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,636 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,637 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,637 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,637 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,637 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,638 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,639 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,639 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,640 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,642 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,642 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,643 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,643 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,644 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,644 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,655 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,655 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,655 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,655 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,655 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,656 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,658 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,658 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,659 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,663 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,664 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,665 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,665 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,665 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,665 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,666 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,666 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,666 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,669 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,669 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,670 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,671 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,672 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,672 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,672 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,672 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,672 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,673 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,673 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,674 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,686 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:45:06,700 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-07 16:45:06,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 16:45:06,769 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-07 16:45:06,769 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-10-07 16:45:06,790 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 16:45:06,805 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 173 transitions, 362 flow [2021-10-07 16:45:06,808 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 173 transitions, 362 flow [2021-10-07 16:45:06,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 165 places, 173 transitions, 362 flow [2021-10-07 16:45:06,934 INFO L129 PetriNetUnfolder]: 15/171 cut-off events. [2021-10-07 16:45:06,934 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-07 16:45:06,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 171 events. 15/171 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 346 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2021-10-07 16:45:06,952 INFO L116 LiptonReduction]: Number of co-enabled transitions 2440 [2021-10-07 16:45:53,887 INFO L131 LiptonReduction]: Checked pairs total: 2816 [2021-10-07 16:45:53,888 INFO L133 LiptonReduction]: Total number of compositions: 196 [2021-10-07 16:45:53,897 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 45 transitions, 106 flow [2021-10-07 16:45:53,935 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 346 states, 170 states have (on average 5.147058823529412) internal successors, (875), 345 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:45:53,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 170 states have (on average 5.147058823529412) internal successors, (875), 345 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:45:53,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 16:45:53,957 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:45:53,958 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 16:45:53,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-07 16:45:53,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:45:53,966 INFO L82 PathProgramCache]: Analyzing trace with hash 27084, now seen corresponding path program 1 times [2021-10-07 16:45:53,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:45:53,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751263368] [2021-10-07 16:45:53,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:45:53,978 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:45:53,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:45:53,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:45:53,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-07 16:45:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:45:54,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 16:45:54,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:45:54,356 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 16:45:54,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-07 16:45:54,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:45:54,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:45:54,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:45:54,883 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:45:54,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751263368] [2021-10-07 16:45:54,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751263368] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:45:54,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:45:54,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 16:45:54,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035491030] [2021-10-07 16:45:54,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 16:45:54,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:45:54,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 16:45:54,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 16:45:54,910 INFO L87 Difference]: Start difference. First operand has 346 states, 170 states have (on average 5.147058823529412) internal successors, (875), 345 states have internal predecessors, (875), 0 states have call successors, (0), 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) [2021-10-07 16:45:55,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:45:55,238 INFO L93 Difference]: Finished difference Result 284 states and 717 transitions. [2021-10-07 16:45:55,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 16:45:55,243 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 [2021-10-07 16:45:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:45:55,262 INFO L225 Difference]: With dead ends: 284 [2021-10-07 16:45:55,263 INFO L226 Difference]: Without dead ends: 284 [2021-10-07 16:45:55,264 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 16:45:55,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-10-07 16:45:55,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2021-10-07 16:45:55,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 143 states have (on average 5.013986013986014) internal successors, (717), 283 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:45:55,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 717 transitions. [2021-10-07 16:45:55,376 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 717 transitions. Word has length 2 [2021-10-07 16:45:55,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:45:55,377 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 717 transitions. [2021-10-07 16:45:55,377 INFO L471 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) [2021-10-07 16:45:55,377 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 717 transitions. [2021-10-07 16:45:55,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 16:45:55,378 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:45:55,378 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 16:45:55,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-07 16:45:55,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:45:55,580 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-07 16:45:55,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:45:55,581 INFO L82 PathProgramCache]: Analyzing trace with hash 27085, now seen corresponding path program 1 times [2021-10-07 16:45:55,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:45:55,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287256590] [2021-10-07 16:45:55,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:45:55,583 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:45:55,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:45:55,589 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:45:55,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-07 16:45:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:45:55,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 16:45:55,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:45:55,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:45:55,881 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-07 16:45:55,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 20 treesize of output 59 [2021-10-07 16:45:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:45:55,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:45:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:45:56,069 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:45:56,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287256590] [2021-10-07 16:45:56,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287256590] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:45:56,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:45:56,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 16:45:56,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80498458] [2021-10-07 16:45:56,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 16:45:56,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:45:56,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 16:45:56,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:45:56,098 INFO L87 Difference]: Start difference. First operand 284 states and 717 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:45:57,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:45:57,003 INFO L93 Difference]: Finished difference Result 567 states and 1436 transitions. [2021-10-07 16:45:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 16:45:57,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 [2021-10-07 16:45:57,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:45:57,015 INFO L225 Difference]: With dead ends: 567 [2021-10-07 16:45:57,015 INFO L226 Difference]: Without dead ends: 567 [2021-10-07 16:45:57,016 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 84.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:45:57,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-10-07 16:45:57,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 286. [2021-10-07 16:45:57,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 145 states have (on average 5.0) internal successors, (725), 285 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:45:57,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 725 transitions. [2021-10-07 16:45:57,039 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 725 transitions. Word has length 2 [2021-10-07 16:45:57,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:45:57,040 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 725 transitions. [2021-10-07 16:45:57,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:45:57,040 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 725 transitions. [2021-10-07 16:45:57,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 16:45:57,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:45:57,041 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 16:45:57,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-07 16:45:57,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:45:57,253 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-07 16:45:57,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:45:57,255 INFO L82 PathProgramCache]: Analyzing trace with hash 27201, now seen corresponding path program 1 times [2021-10-07 16:45:57,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:45:57,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175769303] [2021-10-07 16:45:57,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:45:57,257 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:45:57,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:45:57,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:45:57,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-07 16:45:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:45:57,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 16:45:57,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:45:57,505 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 16:45:57,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 143 treesize of output 176 [2021-10-07 16:45:59,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:45:59,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:45:59,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:45:59,023 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:45:59,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175769303] [2021-10-07 16:45:59,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175769303] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:45:59,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:45:59,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 16:45:59,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996380129] [2021-10-07 16:45:59,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 16:45:59,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:45:59,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 16:45:59,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:45:59,026 INFO L87 Difference]: Start difference. First operand 286 states and 725 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:45:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:45:59,370 INFO L93 Difference]: Finished difference Result 233 states and 566 transitions. [2021-10-07 16:45:59,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 16:45:59,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 [2021-10-07 16:45:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:45:59,374 INFO L225 Difference]: With dead ends: 233 [2021-10-07 16:45:59,374 INFO L226 Difference]: Without dead ends: 233 [2021-10-07 16:45:59,374 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:45:59,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-10-07 16:45:59,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-10-07 16:45:59,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 129 states have (on average 4.387596899224806) internal successors, (566), 232 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:45:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 566 transitions. [2021-10-07 16:45:59,386 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 566 transitions. Word has length 2 [2021-10-07 16:45:59,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:45:59,386 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 566 transitions. [2021-10-07 16:45:59,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:45:59,387 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 566 transitions. [2021-10-07 16:45:59,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 16:45:59,387 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:45:59,387 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 16:45:59,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-07 16:45:59,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:45:59,600 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-07 16:45:59,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:45:59,601 INFO L82 PathProgramCache]: Analyzing trace with hash 27202, now seen corresponding path program 1 times [2021-10-07 16:45:59,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:45:59,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311654045] [2021-10-07 16:45:59,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:45:59,603 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:45:59,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:45:59,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:45:59,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-07 16:45:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:45:59,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 16:45:59,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:45:59,853 INFO L354 Elim1Store]: treesize reduction 151, result has 21.8 percent of original size [2021-10-07 16:45:59,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 74 [2021-10-07 16:45:59,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 117 [2021-10-07 16:46:00,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:46:00,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:46:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:46:00,275 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:46:00,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311654045] [2021-10-07 16:46:00,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311654045] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:46:00,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:46:00,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 16:46:00,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41188227] [2021-10-07 16:46:00,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 16:46:00,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:46:00,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 16:46:00,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:46:00,278 INFO L87 Difference]: Start difference. First operand 233 states and 566 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:46:00,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:46:00,597 INFO L93 Difference]: Finished difference Result 180 states and 407 transitions. [2021-10-07 16:46:00,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 16:46:00,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 [2021-10-07 16:46:00,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:46:00,603 INFO L225 Difference]: With dead ends: 180 [2021-10-07 16:46:00,604 INFO L226 Difference]: Without dead ends: 180 [2021-10-07 16:46:00,604 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:46:00,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-07 16:46:00,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-10-07 16:46:00,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 113 states have (on average 3.601769911504425) internal successors, (407), 179 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:46:00,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 407 transitions. [2021-10-07 16:46:00,611 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 407 transitions. Word has length 2 [2021-10-07 16:46:00,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:46:00,611 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 407 transitions. [2021-10-07 16:46:00,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:46:00,612 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 407 transitions. [2021-10-07 16:46:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 16:46:00,612 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:46:00,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-07 16:46:00,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-07 16:46:00,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:46:00,824 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-07 16:46:00,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:46:00,825 INFO L82 PathProgramCache]: Analyzing trace with hash 26162104, now seen corresponding path program 1 times [2021-10-07 16:46:00,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:46:00,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947652380] [2021-10-07 16:46:00,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:46:00,827 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:46:00,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:46:00,828 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:46:00,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-07 16:46:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 16:46:00,903 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 16:46:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 16:46:00,978 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-07 16:46:00,978 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 16:46:00,979 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err1REQUIRES_VIOLATION [2021-10-07 16:46:00,981 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 16:46:00,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-07 16:46:00,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 16:46:00,982 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 16:46:00,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 16:46:00,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 16:46:00,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-07 16:46:00,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-07 16:46:00,983 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6REQUIRES_VIOLATION [2021-10-07 16:46:00,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7REQUIRES_VIOLATION [2021-10-07 16:46:00,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8REQUIRES_VIOLATION [2021-10-07 16:46:00,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9REQUIRES_VIOLATION [2021-10-07 16:46:00,984 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10REQUIRES_VIOLATION [2021-10-07 16:46:00,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11REQUIRES_VIOLATION [2021-10-07 16:46:00,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12REQUIRES_VIOLATION [2021-10-07 16:46:00,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13REQUIRES_VIOLATION [2021-10-07 16:46:00,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 16:46:00,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 16:46:00,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 16:46:00,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 16:46:00,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 16:46:00,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 16:46:00,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 16:46:00,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 16:46:00,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-07 16:46:00,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-07 16:46:00,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 16:46:00,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 16:46:00,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 16:46:00,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 16:46:00,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 16:46:00,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 16:46:00,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 16:46:00,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 16:46:00,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 16:46:00,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-07 16:46:00,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-07 16:46:00,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6REQUIRES_VIOLATION [2021-10-07 16:46:00,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7REQUIRES_VIOLATION [2021-10-07 16:46:00,990 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8REQUIRES_VIOLATION [2021-10-07 16:46:00,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9REQUIRES_VIOLATION [2021-10-07 16:46:00,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10REQUIRES_VIOLATION [2021-10-07 16:46:00,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11REQUIRES_VIOLATION [2021-10-07 16:46:00,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12REQUIRES_VIOLATION [2021-10-07 16:46:00,991 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13REQUIRES_VIOLATION [2021-10-07 16:46:01,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-07 16:46:01,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:46:01,212 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 16:46:01,212 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 16:46:01,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 04:46:01 BasicIcfg [2021-10-07 16:46:01,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 16:46:01,255 INFO L168 Benchmark]: Toolchain (without parser) took 57564.71 ms. Allocated memory was 175.1 MB in the beginning and 213.9 MB in the end (delta: 38.8 MB). Free memory was 148.5 MB in the beginning and 107.6 MB in the end (delta: 40.9 MB). Peak memory consumption was 80.4 MB. Max. memory is 8.0 GB. [2021-10-07 16:46:01,255 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 175.1 MB. Free memory is still 146.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 16:46:01,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.46 ms. Allocated memory is still 175.1 MB. Free memory was 148.1 MB in the beginning and 134.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-07 16:46:01,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 175.1 MB. Free memory was 134.3 MB in the beginning and 132.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 16:46:01,258 INFO L168 Benchmark]: Boogie Preprocessor took 44.73 ms. Allocated memory is still 175.1 MB. Free memory was 132.2 MB in the beginning and 130.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 16:46:01,260 INFO L168 Benchmark]: RCFGBuilder took 2366.43 ms. Allocated memory is still 175.1 MB. Free memory was 130.3 MB in the beginning and 114.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. [2021-10-07 16:46:01,262 INFO L168 Benchmark]: TraceAbstraction took 54706.74 ms. Allocated memory was 175.1 MB in the beginning and 213.9 MB in the end (delta: 38.8 MB). Free memory was 113.9 MB in the beginning and 107.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 45.2 MB. Max. memory is 8.0 GB. [2021-10-07 16:46:01,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 175.1 MB. Free memory is still 146.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 374.46 ms. Allocated memory is still 175.1 MB. Free memory was 148.1 MB in the beginning and 134.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 175.1 MB. Free memory was 134.3 MB in the beginning and 132.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.73 ms. Allocated memory is still 175.1 MB. Free memory was 132.2 MB in the beginning and 130.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2366.43 ms. Allocated memory is still 175.1 MB. Free memory was 130.3 MB in the beginning and 114.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 54706.74 ms. Allocated memory was 175.1 MB in the beginning and 213.9 MB in the end (delta: 38.8 MB). Free memory was 113.9 MB in the beginning and 107.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 45.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47079.4ms, 165 PlacesBefore, 49 PlacesAfterwards, 173 TransitionsBefore, 45 TransitionsAfterwards, 2440 CoEnabledTransitionPairs, 7 FixpointIterations, 78 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 12 ConcurrentYvCompositions, 12 ChoiceCompositions, 196 TotalNumberOfCompositions, 2816 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2796, positive: 2782, positive conditional: 0, positive unconditional: 2782, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1351, positive: 1349, positive conditional: 0, positive unconditional: 1349, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1351, positive: 1349, positive conditional: 0, positive unconditional: 1349, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 189, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 189, negative conditional: 0, negative unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2796, positive: 1433, positive conditional: 0, positive unconditional: 1433, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 1351, unknown conditional: 0, unknown unconditional: 1351] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L41] 0 int *f; [L42] 0 int x1, x2, size; [L43] 0 unsigned int i1, i2, n; [L95] 0 pthread_t t1, t2; [L98] 0 n = __VERIFIER_nondet_uint() [L99] 0 size = __VERIFIER_nondet_int() [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L118] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L119] 0 int i = 0; VAL [f={0:0}, i1=0, i2=0, size=0, x1=0, x2=0] [L119] COND FALSE 0 !(i < size) [L122] 0 return arr; [L100] 0 f = create_fresh_int_array(size) [L103] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [f={1:0}, i1=0, i2=0, size=0, x1=0, x2=0] [L49] COND TRUE 1 i1 < n [L51] 1 f[x1] - UnprovableResult [Line: 51]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 120]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 120]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 103]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 103]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 106]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 106]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 103]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 223 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 54450.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 23.6ms, AutomataDifference: 1966.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 47165.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 56 SDtfs, 204 SDslu, 14 SDs, 0 SdLazy, 109 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1640.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 162.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 135.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 281 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 44.6ms SsaConstructionTime, 133.5ms SatisfiabilityAnalysisTime, 3564.8ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 183 SizeOfPredicates, 20 NumberOfNonLiveVariables, 168 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 proved your program to be incorrect! [2021-10-07 16:46:01,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...