/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 21:50:48,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 21:50:48,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 21:50:48,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 21:50:48,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 21:50:48,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 21:50:48,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 21:50:48,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 21:50:48,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 21:50:48,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 21:50:48,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 21:50:48,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 21:50:48,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 21:50:48,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 21:50:48,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 21:50:48,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 21:50:48,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 21:50:48,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 21:50:48,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 21:50:48,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 21:50:48,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 21:50:48,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 21:50:48,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 21:50:48,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 21:50:48,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 21:50:48,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 21:50:48,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 21:50:48,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 21:50:48,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 21:50:48,901 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 21:50:48,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 21:50:48,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 21:50:48,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 21:50:48,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 21:50:48,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 21:50:48,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 21:50:48,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 21:50:48,903 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 21:50:48,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 21:50:48,907 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 21:50:48,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 21:50:48,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 21:50:48,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 21:50:48,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 21:50:48,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 21:50:48,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 21:50:48,907 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 21:50:48,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 21:50:48,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 21:50:48,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 21:50:48,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 21:50:48,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 21:50:48,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 21:50:48,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 21:50:48,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 21:50:48,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 21:50:48,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 21:50:48,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 21:50:48,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 21:50:48,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 21:50:48,909 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 21:50:48,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 21:50:48,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 21:50:49,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 21:50:49,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 21:50:49,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 21:50:49,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 21:50:49,096 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 21:50:49,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar.i [2022-02-10 21:50:49,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8323b6a4/b130865d7bb14ab0b466beb7d0b8c04a/FLAG73ed2ec99 [2022-02-10 21:50:49,498 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 21:50:49,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i [2022-02-10 21:50:49,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8323b6a4/b130865d7bb14ab0b466beb7d0b8c04a/FLAG73ed2ec99 [2022-02-10 21:50:49,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8323b6a4/b130865d7bb14ab0b466beb7d0b8c04a [2022-02-10 21:50:49,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 21:50:49,889 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 21:50:49,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 21:50:49,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 21:50:49,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 21:50:49,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 09:50:49" (1/1) ... [2022-02-10 21:50:49,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da6d7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:49, skipping insertion in model container [2022-02-10 21:50:49,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 09:50:49" (1/1) ... [2022-02-10 21:50:49,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 21:50:49,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 21:50:50,054 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-10 21:50:50,174 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2022-02-10 21:50:50,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 21:50:50,192 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 21:50:50,201 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-02-10 21:50:50,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2022-02-10 21:50:50,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 21:50:50,256 INFO L208 MainTranslator]: Completed translation [2022-02-10 21:50:50,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50 WrapperNode [2022-02-10 21:50:50,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 21:50:50,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 21:50:50,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 21:50:50,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 21:50:50,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,305 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-02-10 21:50:50,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 21:50:50,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 21:50:50,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 21:50:50,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 21:50:50,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 21:50:50,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 21:50:50,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 21:50:50,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 21:50:50,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (1/1) ... [2022-02-10 21:50:50,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 21:50:50,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:50,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 21:50:50,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 21:50:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 21:50:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 21:50:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 21:50:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 21:50:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 21:50:50,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 21:50:50,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 21:50:50,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-02-10 21:50:50,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-02-10 21:50:50,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 21:50:50,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 21:50:50,387 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 21:50:50,477 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 21:50:50,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 21:50:50,645 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 21:50:50,650 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 21:50:50,650 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 21:50:50,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 09:50:50 BoogieIcfgContainer [2022-02-10 21:50:50,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 21:50:50,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 21:50:50,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 21:50:50,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 21:50:50,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 09:50:49" (1/3) ... [2022-02-10 21:50:50,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2598b763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 09:50:50, skipping insertion in model container [2022-02-10 21:50:50,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:50:50" (2/3) ... [2022-02-10 21:50:50,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2598b763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 09:50:50, skipping insertion in model container [2022-02-10 21:50:50,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 09:50:50" (3/3) ... [2022-02-10 21:50:50,657 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar.i [2022-02-10 21:50:50,661 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 21:50:50,661 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 21:50:50,661 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 21:50:50,661 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 21:50:50,680 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,681 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,681 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,681 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,681 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,681 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,681 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,681 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,682 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,682 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,682 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,682 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,683 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,683 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,683 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,683 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,683 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,684 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,684 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,684 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,686 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,686 WARN L322 ript$VariableManager]: TermVariable threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,686 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,686 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,686 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,686 WARN L322 ript$VariableManager]: TermVariable |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:50:50,689 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 21:50:50,716 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 21:50:50,721 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 21:50:50,721 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 21:50:50,727 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 78 transitions, 164 flow [2022-02-10 21:50:50,758 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 152 states, 151 states have (on average 1.8741721854304636) internal successors, (283), 151 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:50,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 151 states have (on average 1.8741721854304636) internal successors, (283), 151 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:50,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-10 21:50:50,771 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:50,771 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:50:50,772 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 21:50:50,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:50,781 INFO L85 PathProgramCache]: Analyzing trace with hash 533594750, now seen corresponding path program 1 times [2022-02-10 21:50:50,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:50,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661270318] [2022-02-10 21:50:50,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:50,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:50,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:50,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:50,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661270318] [2022-02-10 21:50:50,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661270318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:50:50,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:50:50,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 21:50:50,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607964108] [2022-02-10 21:50:50,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:50:50,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 21:50:50,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:50,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 21:50:50,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 21:50:50,988 INFO L87 Difference]: Start difference. First operand has 152 states, 151 states have (on average 1.8741721854304636) internal successors, (283), 151 states have internal predecessors, (283), 0 states have call successors, (0), 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, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:51,002 INFO L93 Difference]: Finished difference Result 152 states and 262 transitions. [2022-02-10 21:50:51,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 21:50:51,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-02-10 21:50:51,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:51,011 INFO L225 Difference]: With dead ends: 152 [2022-02-10 21:50:51,012 INFO L226 Difference]: Without dead ends: 152 [2022-02-10 21:50:51,013 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 21:50:51,017 INFO L934 BasicCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:50:51,018 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:50:51,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-02-10 21:50:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2022-02-10 21:50:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.7350993377483444) internal successors, (262), 151 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 262 transitions. [2022-02-10 21:50:51,053 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 262 transitions. Word has length 48 [2022-02-10 21:50:51,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:51,053 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 262 transitions. [2022-02-10 21:50:51,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,053 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 262 transitions. [2022-02-10 21:50:51,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-10 21:50:51,054 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:51,055 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:50:51,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 21:50:51,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 21:50:51,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:51,056 INFO L85 PathProgramCache]: Analyzing trace with hash 533595711, now seen corresponding path program 1 times [2022-02-10 21:50:51,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:51,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520153823] [2022-02-10 21:50:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:51,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:51,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520153823] [2022-02-10 21:50:51,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520153823] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:50:51,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:50:51,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 21:50:51,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88122420] [2022-02-10 21:50:51,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:50:51,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 21:50:51,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:51,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 21:50:51,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 21:50:51,172 INFO L87 Difference]: Start difference. First operand 152 states and 262 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:51,185 INFO L93 Difference]: Finished difference Result 125 states and 205 transitions. [2022-02-10 21:50:51,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 21:50:51,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-02-10 21:50:51,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:51,187 INFO L225 Difference]: With dead ends: 125 [2022-02-10 21:50:51,187 INFO L226 Difference]: Without dead ends: 125 [2022-02-10 21:50:51,187 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 21:50:51,188 INFO L934 BasicCegarLoop]: 61 mSDtfsCounter, 13 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:50:51,189 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:50:51,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-02-10 21:50:51,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-02-10 21:50:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.653225806451613) internal successors, (205), 124 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 205 transitions. [2022-02-10 21:50:51,201 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 205 transitions. Word has length 48 [2022-02-10 21:50:51,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:51,201 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 205 transitions. [2022-02-10 21:50:51,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,202 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 205 transitions. [2022-02-10 21:50:51,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-10 21:50:51,203 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:51,203 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:50:51,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 21:50:51,204 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 21:50:51,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:51,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1744239603, now seen corresponding path program 1 times [2022-02-10 21:50:51,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:51,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276292086] [2022-02-10 21:50:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:51,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:51,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:51,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276292086] [2022-02-10 21:50:51,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276292086] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:50:51,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:50:51,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 21:50:51,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484012967] [2022-02-10 21:50:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:50:51,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 21:50:51,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:51,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 21:50:51,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 21:50:51,300 INFO L87 Difference]: Start difference. First operand 125 states and 205 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:51,321 INFO L93 Difference]: Finished difference Result 153 states and 261 transitions. [2022-02-10 21:50:51,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 21:50:51,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-02-10 21:50:51,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:51,323 INFO L225 Difference]: With dead ends: 153 [2022-02-10 21:50:51,323 INFO L226 Difference]: Without dead ends: 153 [2022-02-10 21:50:51,324 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 21:50:51,326 INFO L934 BasicCegarLoop]: 66 mSDtfsCounter, 10 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:50:51,326 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 121 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:50:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-02-10 21:50:51,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 132. [2022-02-10 21:50:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.6717557251908397) internal successors, (219), 131 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 219 transitions. [2022-02-10 21:50:51,336 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 219 transitions. Word has length 53 [2022-02-10 21:50:51,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:51,336 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 219 transitions. [2022-02-10 21:50:51,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,336 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 219 transitions. [2022-02-10 21:50:51,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-02-10 21:50:51,337 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:51,337 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:50:51,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 21:50:51,338 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 21:50:51,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:51,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1425415831, now seen corresponding path program 1 times [2022-02-10 21:50:51,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:51,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20673928] [2022-02-10 21:50:51,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:51,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:51,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:51,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20673928] [2022-02-10 21:50:51,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20673928] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:51,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932512968] [2022-02-10 21:50:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:51,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:51,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:51,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 21:50:51,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 21:50:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:51,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 21:50:51,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:51,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 21:50:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:51,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932512968] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 21:50:51,785 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 21:50:51,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 21:50:51,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382967021] [2022-02-10 21:50:51,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 21:50:51,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 21:50:51,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:51,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 21:50:51,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 21:50:51,791 INFO L87 Difference]: Start difference. First operand 132 states and 219 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:51,860 INFO L93 Difference]: Finished difference Result 202 states and 359 transitions. [2022-02-10 21:50:51,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 21:50:51,860 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 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 58 [2022-02-10 21:50:51,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:51,862 INFO L225 Difference]: With dead ends: 202 [2022-02-10 21:50:51,862 INFO L226 Difference]: Without dead ends: 202 [2022-02-10 21:50:51,863 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 21:50:51,863 INFO L934 BasicCegarLoop]: 72 mSDtfsCounter, 96 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:50:51,864 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 454 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:50:51,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-02-10 21:50:51,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-02-10 21:50:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.7860696517412935) internal successors, (359), 201 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 359 transitions. [2022-02-10 21:50:51,878 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 359 transitions. Word has length 58 [2022-02-10 21:50:51,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:51,878 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 359 transitions. [2022-02-10 21:50:51,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:51,878 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 359 transitions. [2022-02-10 21:50:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-10 21:50:51,880 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:51,880 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:50:51,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 21:50:52,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:52,081 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 21:50:52,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:52,082 INFO L85 PathProgramCache]: Analyzing trace with hash -2005522409, now seen corresponding path program 2 times [2022-02-10 21:50:52,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:52,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599913463] [2022-02-10 21:50:52,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:52,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:52,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:52,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599913463] [2022-02-10 21:50:52,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599913463] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:52,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124672817] [2022-02-10 21:50:52,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 21:50:52,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:52,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:52,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 21:50:52,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 21:50:52,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 21:50:52,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 21:50:52,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 21:50:52,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:52,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 21:50:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:52,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124672817] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 21:50:52,519 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 21:50:52,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-10 21:50:52,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170499330] [2022-02-10 21:50:52,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 21:50:52,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 21:50:52,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:52,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 21:50:52,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-10 21:50:52,521 INFO L87 Difference]: Start difference. First operand 202 states and 359 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:52,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:52,702 INFO L93 Difference]: Finished difference Result 342 states and 639 transitions. [2022-02-10 21:50:52,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 21:50:52,702 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 68 [2022-02-10 21:50:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:52,704 INFO L225 Difference]: With dead ends: 342 [2022-02-10 21:50:52,704 INFO L226 Difference]: Without dead ends: 342 [2022-02-10 21:50:52,704 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-02-10 21:50:52,705 INFO L934 BasicCegarLoop]: 72 mSDtfsCounter, 322 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:50:52,705 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 467 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:50:52,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-02-10 21:50:52,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-02-10 21:50:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 1.8739002932551319) internal successors, (639), 341 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:52,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 639 transitions. [2022-02-10 21:50:52,717 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 639 transitions. Word has length 68 [2022-02-10 21:50:52,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:52,717 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 639 transitions. [2022-02-10 21:50:52,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:52,717 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 639 transitions. [2022-02-10 21:50:52,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-10 21:50:52,720 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:50:52,720 INFO L515 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:50:52,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 21:50:52,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:52,941 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 21:50:52,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:50:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash -113992937, now seen corresponding path program 3 times [2022-02-10 21:50:52,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:50:52,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053267163] [2022-02-10 21:50:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:50:52,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:50:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:50:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:50:53,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:50:53,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053267163] [2022-02-10 21:50:53,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053267163] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 21:50:53,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621249526] [2022-02-10 21:50:53,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 21:50:53,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:53,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:50:53,084 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 21:50:53,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 21:50:53,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-10 21:50:53,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 21:50:53,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-10 21:50:53,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 21:50:53,309 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-02-10 21:50:53,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 21:50:53,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621249526] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:50:53,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 21:50:53,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2022-02-10 21:50:53,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259851505] [2022-02-10 21:50:53,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:50:53,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 21:50:53,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:50:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 21:50:53,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-02-10 21:50:53,313 INFO L87 Difference]: Start difference. First operand 342 states and 639 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:53,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:50:53,375 INFO L93 Difference]: Finished difference Result 338 states and 633 transitions. [2022-02-10 21:50:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 21:50:53,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 88 [2022-02-10 21:50:53,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:50:53,375 INFO L225 Difference]: With dead ends: 338 [2022-02-10 21:50:53,375 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 21:50:53,376 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2022-02-10 21:50:53,378 INFO L934 BasicCegarLoop]: 83 mSDtfsCounter, 58 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:50:53,379 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 364 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:50:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 21:50:53,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 21:50:53,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:53,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 21:50:53,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2022-02-10 21:50:53,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:50:53,380 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 21:50:53,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:50:53,380 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 21:50:53,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 21:50:53,382 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 3 remaining) [2022-02-10 21:50:53,382 INFO L764 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-02-10 21:50:53,382 INFO L764 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-10 21:50:53,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 21:50:53,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 21:50:53,602 INFO L733 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-02-10 21:50:53,604 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 21:50:53,604 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 21:50:53,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 09:50:53 BasicIcfg [2022-02-10 21:50:53,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 21:50:53,606 INFO L158 Benchmark]: Toolchain (without parser) took 3717.17ms. Allocated memory was 206.6MB in the beginning and 277.9MB in the end (delta: 71.3MB). Free memory was 149.8MB in the beginning and 188.2MB in the end (delta: -38.4MB). Peak memory consumption was 33.9MB. Max. memory is 8.0GB. [2022-02-10 21:50:53,606 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 167.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 21:50:53,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.02ms. Allocated memory was 206.6MB in the beginning and 277.9MB in the end (delta: 71.3MB). Free memory was 149.6MB in the beginning and 240.5MB in the end (delta: -90.9MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. [2022-02-10 21:50:53,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.29ms. Allocated memory is still 277.9MB. Free memory was 240.5MB in the beginning and 238.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 21:50:53,607 INFO L158 Benchmark]: Boogie Preprocessor took 29.96ms. Allocated memory is still 277.9MB. Free memory was 238.4MB in the beginning and 236.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 21:50:53,607 INFO L158 Benchmark]: RCFGBuilder took 314.89ms. Allocated memory is still 277.9MB. Free memory was 236.8MB in the beginning and 224.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-10 21:50:53,607 INFO L158 Benchmark]: TraceAbstraction took 2953.46ms. Allocated memory is still 277.9MB. Free memory was 223.7MB in the beginning and 188.2MB in the end (delta: 35.4MB). Peak memory consumption was 37.0MB. Max. memory is 8.0GB. [2022-02-10 21:50:53,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 167.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 365.02ms. Allocated memory was 206.6MB in the beginning and 277.9MB in the end (delta: 71.3MB). Free memory was 149.6MB in the beginning and 240.5MB in the end (delta: -90.9MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.29ms. Allocated memory is still 277.9MB. Free memory was 240.5MB in the beginning and 238.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.96ms. Allocated memory is still 277.9MB. Free memory was 238.4MB in the beginning and 236.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 314.89ms. Allocated memory is still 277.9MB. Free memory was 236.8MB in the beginning and 224.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2953.46ms. Allocated memory is still 277.9MB. Free memory was 223.7MB in the beginning and 188.2MB in the end (delta: 35.4MB). Peak memory consumption was 37.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 706]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 7, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 499 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 499 mSDsluCounter, 1570 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1170 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 416 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 414 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=5, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 577 NumberOfCodeBlocks, 552 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 692 ConstructedInterpolants, 0 QuantifiedInterpolants, 972 SizeOfPredicates, 12 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 112/281 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-10 21:50:53,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...