/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/chl-time-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:38:08,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:38:08,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:38:08,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 15:38:08,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:38:08,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:38:08,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:38:08,687 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 15:38:08,733 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:38:08,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:38:08,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:38:08,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:38:08,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:38:08,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:38:08,738 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:38:08,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:38:08,739 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:38:08,739 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:38:08,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:38:08,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:38:08,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:38:08,741 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 15:38:08,741 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 15:38:08,741 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 15:38:08,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:38:08,742 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 15:38:08,742 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 15:38:08,742 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 15:38:08,742 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:38:08,742 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:38:08,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:38:08,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:38:08,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:38:08,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:38:08,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:38:08,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:38:08,744 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 15:38:08,744 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 15:38:08,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:38:08,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 15:38:08,745 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:38:09,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:38:09,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:38:09,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:38:09,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:38:09,144 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:38:09,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2021-10-07 15:38:09,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53dfe3114/9b62dc83a2394d169d035ca169579619/FLAGd2e1bf88b [2021-10-07 15:38:09,846 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:38:09,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2021-10-07 15:38:09,855 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53dfe3114/9b62dc83a2394d169d035ca169579619/FLAGd2e1bf88b [2021-10-07 15:38:10,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53dfe3114/9b62dc83a2394d169d035ca169579619 [2021-10-07 15:38:10,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:38:10,231 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 15:38:10,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:38:10,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:38:10,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:38:10,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c022eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10, skipping insertion in model container [2021-10-07 15:38:10,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:38:10,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:38:10,501 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/chl-time-trans.wvr.c[2795,2808] [2021-10-07 15:38:10,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:38:10,520 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:38:10,551 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/chl-time-trans.wvr.c[2795,2808] [2021-10-07 15:38:10,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:38:10,576 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:38:10,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10 WrapperNode [2021-10-07 15:38:10,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:38:10,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:38:10,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:38:10,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:38:10,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:38:10,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:38:10,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:38:10,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:38:10,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:38:10,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:38:10,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:38:10,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:38:10,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (1/1) ... [2021-10-07 15:38:10,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:38:10,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:38:10,770 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 15:38:10,803 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 15:38:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:38:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:38:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:38:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:38:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:38:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:38:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 15:38:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:38:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 15:38:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 15:38:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 15:38:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:38:10,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:38:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:38:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 15:38:10,869 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 15:38:11,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:38:11,504 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-07 15:38:11,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:38:11 BoogieIcfgContainer [2021-10-07 15:38:11,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:38:11,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:38:11,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:38:11,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:38:11,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:38:10" (1/3) ... [2021-10-07 15:38:11,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71df812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:38:11, skipping insertion in model container [2021-10-07 15:38:11,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:38:10" (2/3) ... [2021-10-07 15:38:11,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71df812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:38:11, skipping insertion in model container [2021-10-07 15:38:11,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:38:11" (3/3) ... [2021-10-07 15:38:11,516 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2021-10-07 15:38:11,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:38:11,523 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-10-07 15:38:11,523 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:38:11,573 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,574 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,575 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,576 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,576 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,576 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,576 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,576 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,585 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,585 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,585 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:38:11,595 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-07 15:38:11,651 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:38:11,659 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 15:38:11,660 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-10-07 15:38:11,683 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:38:11,695 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 111 transitions, 246 flow [2021-10-07 15:38:11,698 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 111 transitions, 246 flow [2021-10-07 15:38:11,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 111 transitions, 246 flow [2021-10-07 15:38:11,752 INFO L129 PetriNetUnfolder]: 1/108 cut-off events. [2021-10-07 15:38:11,752 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-07 15:38:11,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 1/108 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2021-10-07 15:38:11,757 INFO L116 LiptonReduction]: Number of co-enabled transitions 378 [2021-10-07 15:38:21,428 INFO L131 LiptonReduction]: Checked pairs total: 667 [2021-10-07 15:38:21,429 INFO L133 LiptonReduction]: Total number of compositions: 111 [2021-10-07 15:38:21,438 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 33 transitions, 90 flow [2021-10-07 15:38:21,453 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 87 states, 73 states have (on average 2.287671232876712) internal successors, (167), 86 states have internal predecessors, (167), 0 states have call successors, (0), 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 15:38:21,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 2.287671232876712) internal successors, (167), 86 states have internal predecessors, (167), 0 states have call successors, (0), 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 15:38:21,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-07 15:38:21,461 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:38:21,462 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-07 15:38:21,462 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:38:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:38:21,468 INFO L82 PathProgramCache]: Analyzing trace with hash 427, now seen corresponding path program 1 times [2021-10-07 15:38:21,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:38:21,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694308120] [2021-10-07 15:38:21,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:38:21,482 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:38:21,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:38:21,492 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 15:38:21,495 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 15:38:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:38:21,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-07 15:38:21,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:38:21,564 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 15:38:21,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:38:21,565 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 15:38:21,565 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:38:21,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694308120] [2021-10-07 15:38:21,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694308120] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:38:21,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:38:21,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-07 15:38:21,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096433174] [2021-10-07 15:38:21,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-07 15:38:21,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:38:21,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-07 15:38:21,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-07 15:38:21,601 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 2.287671232876712) internal successors, (167), 86 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:38:21,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:38:21,623 INFO L93 Difference]: Finished difference Result 84 states and 164 transitions. [2021-10-07 15:38:21,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-07 15:38:21,625 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-10-07 15:38:21,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:38:21,639 INFO L225 Difference]: With dead ends: 84 [2021-10-07 15:38:21,639 INFO L226 Difference]: Without dead ends: 84 [2021-10-07 15:38:21,640 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-07 15:38:21,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-07 15:38:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-10-07 15:38:21,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 2.2465753424657535) internal successors, (164), 83 states have internal predecessors, (164), 0 states have call successors, (0), 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 15:38:21,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 164 transitions. [2021-10-07 15:38:21,685 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 164 transitions. Word has length 1 [2021-10-07 15:38:21,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:38:21,685 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 164 transitions. [2021-10-07 15:38:21,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:38:21,686 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 164 transitions. [2021-10-07 15:38:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:38:21,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:38:21,686 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:38:21,700 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 15:38:21,897 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 15:38:21,900 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:38:21,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:38:21,901 INFO L82 PathProgramCache]: Analyzing trace with hash 420365, now seen corresponding path program 1 times [2021-10-07 15:38:21,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:38:21,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85530990] [2021-10-07 15:38:21,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:38:21,902 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:38:21,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:38:21,904 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 15:38:21,908 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 15:38:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:38:21,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:38:21,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:38:22,291 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-07 15:38:22,292 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 18 treesize of output 49 [2021-10-07 15:38:22,434 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 15:38:22,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:38:22,489 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 15:38:22,490 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:38:22,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85530990] [2021-10-07 15:38:22,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85530990] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:38:22,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:38:22,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:38:22,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772201688] [2021-10-07 15:38:22,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:38:22,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:38:22,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:38:22,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:38:22,494 INFO L87 Difference]: Start difference. First operand 84 states and 164 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 15:38:22,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:38:22,538 INFO L93 Difference]: Finished difference Result 78 states and 153 transitions. [2021-10-07 15:38:22,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:38:22,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 3 [2021-10-07 15:38:22,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:38:22,540 INFO L225 Difference]: With dead ends: 78 [2021-10-07 15:38:22,540 INFO L226 Difference]: Without dead ends: 78 [2021-10-07 15:38:22,541 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:38:22,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-07 15:38:22,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-10-07 15:38:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 69 states have (on average 2.217391304347826) internal successors, (153), 77 states have internal predecessors, (153), 0 states have call successors, (0), 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 15:38:22,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 153 transitions. [2021-10-07 15:38:22,554 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 153 transitions. Word has length 3 [2021-10-07 15:38:22,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:38:22,554 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 153 transitions. [2021-10-07 15:38:22,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 15:38:22,555 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 153 transitions. [2021-10-07 15:38:22,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:38:22,555 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:38:22,555 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:38:22,568 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 15:38:22,767 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 15:38:22,768 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:38:22,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:38:22,769 INFO L82 PathProgramCache]: Analyzing trace with hash 420366, now seen corresponding path program 1 times [2021-10-07 15:38:22,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:38:22,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18954068] [2021-10-07 15:38:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:38:22,771 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:38:22,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:38:22,772 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 15:38:22,783 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 15:38:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:38:22,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:38:22,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:38:22,863 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-07 15:38:22,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 22 [2021-10-07 15:38:22,897 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 15:38:22,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:38:22,906 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 15:38:22,907 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:38:22,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18954068] [2021-10-07 15:38:22,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18954068] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:38:22,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:38:22,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:38:22,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610114802] [2021-10-07 15:38:22,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:38:22,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:38:22,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:38:22,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:38:22,910 INFO L87 Difference]: Start difference. First operand 78 states and 153 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 15:38:22,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:38:22,941 INFO L93 Difference]: Finished difference Result 72 states and 142 transitions. [2021-10-07 15:38:22,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:38:22,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2021-10-07 15:38:22,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:38:22,943 INFO L225 Difference]: With dead ends: 72 [2021-10-07 15:38:22,943 INFO L226 Difference]: Without dead ends: 72 [2021-10-07 15:38:22,944 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:38:22,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-07 15:38:22,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-10-07 15:38:22,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 2.1846153846153844) internal successors, (142), 71 states have internal predecessors, (142), 0 states have call successors, (0), 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 15:38:22,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 142 transitions. [2021-10-07 15:38:22,952 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 142 transitions. Word has length 3 [2021-10-07 15:38:22,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:38:22,952 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 142 transitions. [2021-10-07 15:38:22,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 15:38:22,953 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 142 transitions. [2021-10-07 15:38:22,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:38:22,954 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:38:22,954 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:38:22,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-07 15:38:23,166 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 15:38:23,167 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:38:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:38:23,169 INFO L82 PathProgramCache]: Analyzing trace with hash 403981862, now seen corresponding path program 1 times [2021-10-07 15:38:23,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:38:23,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447062401] [2021-10-07 15:38:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:38:23,170 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:38:23,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:38:23,172 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 15:38:23,198 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 15:38:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:38:23,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:38:23,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:38:23,389 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-07 15:38:23,390 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 18 treesize of output 49 [2021-10-07 15:38:23,521 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 15:38:23,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:38:23,609 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 15:38:23,610 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:38:23,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447062401] [2021-10-07 15:38:23,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447062401] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:38:23,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:38:23,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:38:23,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090285268] [2021-10-07 15:38:23,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:38:23,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:38:23,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:38:23,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:38:23,615 INFO L87 Difference]: Start difference. First operand 72 states and 142 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 15:38:23,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:38:23,656 INFO L93 Difference]: Finished difference Result 66 states and 131 transitions. [2021-10-07 15:38:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:38:23,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-07 15:38:23,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:38:23,659 INFO L225 Difference]: With dead ends: 66 [2021-10-07 15:38:23,659 INFO L226 Difference]: Without dead ends: 66 [2021-10-07 15:38:23,660 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:38:23,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-07 15:38:23,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-07 15:38:23,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 61 states have (on average 2.1475409836065573) internal successors, (131), 65 states have internal predecessors, (131), 0 states have call successors, (0), 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 15:38:23,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2021-10-07 15:38:23,675 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 5 [2021-10-07 15:38:23,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:38:23,676 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2021-10-07 15:38:23,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 15:38:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2021-10-07 15:38:23,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:38:23,679 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:38:23,679 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:38:23,695 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 15:38:23,890 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 15:38:23,891 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:38:23,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:38:23,892 INFO L82 PathProgramCache]: Analyzing trace with hash 403981863, now seen corresponding path program 1 times [2021-10-07 15:38:23,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:38:23,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924814381] [2021-10-07 15:38:23,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:38:23,894 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:38:23,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:38:23,895 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 15:38:23,896 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 15:38:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:38:23,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:38:23,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:38:23,978 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-07 15:38:23,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 22 [2021-10-07 15:38:24,018 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 15:38:24,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:38:24,036 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 15:38:24,037 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:38:24,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924814381] [2021-10-07 15:38:24,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924814381] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:38:24,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:38:24,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:38:24,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289227630] [2021-10-07 15:38:24,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:38:24,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:38:24,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:38:24,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:38:24,041 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:38:24,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:38:24,066 INFO L93 Difference]: Finished difference Result 60 states and 120 transitions. [2021-10-07 15:38:24,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:38:24,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-07 15:38:24,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:38:24,068 INFO L225 Difference]: With dead ends: 60 [2021-10-07 15:38:24,068 INFO L226 Difference]: Without dead ends: 60 [2021-10-07 15:38:24,069 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:38:24,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-07 15:38:24,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-10-07 15:38:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 57 states have (on average 2.1052631578947367) internal successors, (120), 59 states have internal predecessors, (120), 0 states have call successors, (0), 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 15:38:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 120 transitions. [2021-10-07 15:38:24,077 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 120 transitions. Word has length 5 [2021-10-07 15:38:24,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:38:24,078 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 120 transitions. [2021-10-07 15:38:24,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:38:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2021-10-07 15:38:24,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:38:24,083 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:38:24,083 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:38:24,097 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 15:38:24,295 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 15:38:24,296 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:38:24,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:38:24,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1679523752, now seen corresponding path program 1 times [2021-10-07 15:38:24,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:38:24,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422282126] [2021-10-07 15:38:24,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:38:24,299 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:38:24,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:38:24,300 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:38:24,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-07 15:38:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:38:24,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:38:24,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:38:24,413 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-10-07 15:38:24,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 22 [2021-10-07 15:38:24,478 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 15:38:24,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:38:24,522 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 15:38:24,522 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:38:24,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422282126] [2021-10-07 15:38:24,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422282126] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:38:24,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:38:24,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-07 15:38:24,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533206018] [2021-10-07 15:38:24,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:38:24,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:38:24,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:38:24,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:38:24,525 INFO L87 Difference]: Start difference. First operand 60 states and 120 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 15:38:24,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:38:24,552 INFO L93 Difference]: Finished difference Result 52 states and 100 transitions. [2021-10-07 15:38:24,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:38:24,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 7 [2021-10-07 15:38:24,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:38:24,554 INFO L225 Difference]: With dead ends: 52 [2021-10-07 15:38:24,554 INFO L226 Difference]: Without dead ends: 52 [2021-10-07 15:38:24,554 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:38:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-07 15:38:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-07 15:38:24,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 2.0) internal successors, (100), 51 states have internal predecessors, (100), 0 states have call successors, (0), 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 15:38:24,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 100 transitions. [2021-10-07 15:38:24,559 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 100 transitions. Word has length 7 [2021-10-07 15:38:24,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:38:24,559 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 100 transitions. [2021-10-07 15:38:24,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 15:38:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 100 transitions. [2021-10-07 15:38:24,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:38:24,560 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:38:24,560 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:38:24,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:38:24,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:38:24,762 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:38:24,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:38:24,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1679523754, now seen corresponding path program 1 times [2021-10-07 15:38:24,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:38:24,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419672556] [2021-10-07 15:38:24,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:38:24,765 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:38:24,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:38:24,768 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:38:24,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-07 15:38:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:38:24,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:38:24,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:38:25,005 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-07 15:38:25,006 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 28 treesize of output 58 [2021-10-07 15:38:25,016 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 59 treesize of output 57 [2021-10-07 15:38:25,217 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 15:38:25,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:38:25,314 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 15:38:25,315 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:38:25,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419672556] [2021-10-07 15:38:25,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419672556] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:38:25,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:38:25,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:38:25,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259335254] [2021-10-07 15:38:25,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:38:25,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:38:25,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:38:25,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:38:25,317 INFO L87 Difference]: Start difference. First operand 52 states and 100 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:38:25,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:38:25,337 INFO L93 Difference]: Finished difference Result 44 states and 80 transitions. [2021-10-07 15:38:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:38:25,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-07 15:38:25,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:38:25,338 INFO L225 Difference]: With dead ends: 44 [2021-10-07 15:38:25,338 INFO L226 Difference]: Without dead ends: 44 [2021-10-07 15:38:25,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:38:25,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-07 15:38:25,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-07 15:38:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 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 15:38:25,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 80 transitions. [2021-10-07 15:38:25,342 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 80 transitions. Word has length 7 [2021-10-07 15:38:25,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:38:25,343 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 80 transitions. [2021-10-07 15:38:25,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:38:25,343 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 80 transitions. [2021-10-07 15:38:25,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 15:38:25,344 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:38:25,344 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:38:25,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-07 15:38:25,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:38:25,546 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:38:25,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:38:25,547 INFO L82 PathProgramCache]: Analyzing trace with hash 891010541, now seen corresponding path program 1 times [2021-10-07 15:38:25,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:38:25,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126453204] [2021-10-07 15:38:25,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:38:25,549 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:38:25,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:38:25,550 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:38:25,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-07 15:38:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:38:25,664 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 15:38:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:38:25,803 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-07 15:38:25,803 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 15:38:25,805 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:38:25,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 15:38:25,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 15:38:25,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 15:38:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 15:38:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 15:38:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 15:38:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 15:38:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 15:38:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-07 15:38:25,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-07 15:38:25,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-07 15:38:25,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-07 15:38:25,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:38:25,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:38:25,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:38:25,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:38:25,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-07 15:38:26,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:38:26,028 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:38:26,028 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:38:26,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:38:26 BasicIcfg [2021-10-07 15:38:26,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:38:26,073 INFO L168 Benchmark]: Toolchain (without parser) took 15848.87 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 139.6 MB in the beginning and 108.3 MB in the end (delta: 31.3 MB). Peak memory consumption was 65.6 MB. Max. memory is 8.0 GB. [2021-10-07 15:38:26,073 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 164.6 MB. Free memory is still 134.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:38:26,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.63 ms. Allocated memory is still 164.6 MB. Free memory was 139.2 MB in the beginning and 127.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:38:26,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.67 ms. Allocated memory is still 164.6 MB. Free memory was 127.8 MB in the beginning and 126.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:38:26,075 INFO L168 Benchmark]: Boogie Preprocessor took 66.29 ms. Allocated memory is still 164.6 MB. Free memory was 126.1 MB in the beginning and 124.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:38:26,076 INFO L168 Benchmark]: RCFGBuilder took 785.74 ms. Allocated memory is still 164.6 MB. Free memory was 124.6 MB in the beginning and 142.7 MB in the end (delta: -18.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. [2021-10-07 15:38:26,076 INFO L168 Benchmark]: TraceAbstraction took 14562.94 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 142.4 MB in the beginning and 108.3 MB in the end (delta: 34.1 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. [2021-10-07 15:38:26,081 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 164.6 MB. Free memory is still 134.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 343.63 ms. Allocated memory is still 164.6 MB. Free memory was 139.2 MB in the beginning and 127.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 73.67 ms. Allocated memory is still 164.6 MB. Free memory was 127.8 MB in the beginning and 126.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.29 ms. Allocated memory is still 164.6 MB. Free memory was 126.1 MB in the beginning and 124.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 785.74 ms. Allocated memory is still 164.6 MB. Free memory was 124.6 MB in the beginning and 142.7 MB in the end (delta: -18.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14562.94 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 142.4 MB in the beginning and 108.3 MB in the end (delta: 34.1 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9730.4ms, 120 PlacesBefore, 43 PlacesAfterwards, 111 TransitionsBefore, 33 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 7 FixpointIterations, 76 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 111 TotalNumberOfCompositions, 667 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 667, positive: 667, positive conditional: 0, positive unconditional: 667, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 267, positive: 267, positive conditional: 0, positive unconditional: 267, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 267, positive: 267, positive conditional: 0, positive unconditional: 267, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 667, positive: 400, positive conditional: 0, positive unconditional: 400, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 267, unknown conditional: 0, unknown unconditional: 267] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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 - UnprovableResult [Line: 92]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 92. Possible FailurePath: [L38] 0 int ora_0, ora_2, ora_4; [L39] 0 int volume_totale_1, volume_totale_3, volume_totale_5; [L40] 0 int cmp_6, cmp_7, cmp_8; [L70] 0 pthread_t t1, t2, t3; [L73] 0 ora_0 = __VERIFIER_nondet_int() [L74] 0 ora_2 = __VERIFIER_nondet_int() [L75] 0 ora_4 = __VERIFIER_nondet_int() [L76] 0 volume_totale_1 = __VERIFIER_nondet_int() [L77] 0 volume_totale_3 = __VERIFIER_nondet_int() [L78] 0 volume_totale_5 = __VERIFIER_nondet_int() [L79] 0 cmp_6 = __VERIFIER_nondet_int() [L80] 0 cmp_7 = __VERIFIER_nondet_int() [L81] 0 cmp_8 = __VERIFIER_nondet_int() [L84] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L44] 1 cmp_6 = ( ora_0 - ora_2 ) [L45] EXPR 1 ( cmp_6 == 0 ) ? ( volume_totale_1 - volume_totale_3 ) : cmp_6 [L45] 1 cmp_6 = ( ( cmp_6 == 0 ) ? ( volume_totale_1 - volume_totale_3 ) : cmp_6 ) [L48] 1 return 0; [L85] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, cmp_6=1073741824, ora_0=1073741824, ora_2=0, volume_totale_1=0, volume_totale_3=0] [L53] 2 cmp_7 = ( ora_2 - ora_4 ) [L54] EXPR 2 ( cmp_7 == 0 ) ? ( volume_totale_3 - volume_totale_5 ) : cmp_7 [L54] 2 cmp_7 = ( ( cmp_7 == 0 ) ? ( volume_totale_3 - volume_totale_5 ) : cmp_7 ) [L57] 2 return 0; [L86] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, \result={0:0}, cmp_6=1073741824, cmp_7=1073741824, ora_0=1073741824, ora_2=0, ora_4=-1073741824, volume_totale_1=0, volume_totale_3=0, volume_totale_5=-1073741824] [L62] 3 cmp_8 = ( ora_0 - ora_4 ) [L63] EXPR 3 ( cmp_8 == 0 ) ? ( volume_totale_1 - volume_totale_5 ) : cmp_8 [L63] 3 cmp_8 = ( ( cmp_8 == 0 ) ? ( volume_totale_1 - volume_totale_5 ) : cmp_8 ) [L66] 3 return 0; [L87] 0 \read(t1) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cmp_6=1073741824, cmp_7=1073741824, cmp_8=-2147483648, ora_0=1073741824, ora_2=0, ora_4=-1073741824, volume_totale_1=0, volume_totale_3=0, volume_totale_5=-1073741824] [L87] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cmp_6=1073741824, cmp_7=1073741824, cmp_8=-2147483648, ora_0=1073741824, ora_2=0, ora_4=-1073741824, volume_totale_1=0, volume_totale_3=0, volume_totale_5=-1073741824] [L88] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cmp_6=1073741824, cmp_7=1073741824, cmp_8=-2147483648, ora_0=1073741824, ora_2=0, ora_4=-1073741824, volume_totale_1=0, volume_totale_3=0, volume_totale_5=-1073741824] [L88] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cmp_6=1073741824, cmp_7=1073741824, cmp_8=-2147483648, ora_0=1073741824, ora_2=0, ora_4=-1073741824, volume_totale_1=0, volume_totale_3=0, volume_totale_5=-1073741824] [L89] 0 \read(t3) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cmp_6=1073741824, cmp_7=1073741824, cmp_8=-2147483648, ora_0=1073741824, ora_2=0, ora_4=-1073741824, volume_totale_1=0, volume_totale_3=0, volume_totale_5=-1073741824] [L89] FCALL, JOIN 3 pthread_join(t3, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cmp_6=1073741824, cmp_7=1073741824, cmp_8=-2147483648, ora_0=1073741824, ora_2=0, ora_4=-1073741824, volume_totale_1=0, volume_totale_3=0, volume_totale_5=-1073741824] [L35] COND FALSE 0 !(!cond) [L92] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, cmp_6=1073741824, cmp_7=1073741824, cmp_8=-2147483648, ora_0=1073741824, ora_2=0, ora_4=-1073741824, volume_totale_1=0, volume_totale_3=0, volume_totale_5=-1073741824] - UnprovableResult [Line: 84]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 86]: 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: 88]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 85]: 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: 86]: 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: 84]: 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 7 procedures, 126 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 14376.9ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 13.2ms, AutomataDifference: 277.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9793.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 100 SDtfs, 113 SDslu, 0 SDs, 0 SdLazy, 43 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 126.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 171.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 79.5ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 79.7ms SsaConstructionTime, 247.3ms SatisfiabilityAnalysisTime, 1675.3ms InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 6 QuantifiedInterpolants, 568 SizeOfPredicates, 22 NumberOfNonLiveVariables, 253 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-07 15:38:26,138 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...