/usr/bin/java -Xmx16000000000 -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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_unsafe-11.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 07:58:39,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 07:58:39,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 07:58:39,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 07:58:39,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 07:58:39,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 07:58:39,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 07:58:39,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 07:58:39,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 07:58:39,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 07:58:39,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 07:58:39,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 07:58:39,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 07:58:39,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 07:58:39,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 07:58:39,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 07:58:39,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 07:58:39,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 07:58:39,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 07:58:39,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 07:58:39,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 07:58:39,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 07:58:39,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 07:58:39,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 07:58:39,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 07:58:39,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 07:58:39,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 07:58:39,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 07:58:39,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 07:58:39,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 07:58:39,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 07:58:39,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 07:58:39,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 07:58:39,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 07:58:39,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 07:58:39,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 07:58:39,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 07:58:39,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 07:58:39,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 07:58:39,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 07:58:39,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 07:58:39,790 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-Separate.epf [2022-01-18 07:58:39,814 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 07:58:39,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 07:58:39,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 07:58:39,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 07:58:39,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 07:58:39,815 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 07:58:39,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 07:58:39,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 07:58:39,815 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 07:58:39,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 07:58:39,816 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 07:58:39,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 07:58:39,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 07:58:39,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 07:58:39,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 07:58:39,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 07:58:39,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 07:58:39,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 07:58:39,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 07:58:39,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 07:58:39,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 07:58:39,818 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 07:58:39,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 07:58:39,818 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 07:58:39,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 07:58:40,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 07:58:40,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 07:58:40,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 07:58:40,042 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 07:58:40,043 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 07:58:40,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-11.i [2022-01-18 07:58:40,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab36a9bb/3e047215aaf04425a5cfdcf40775d3e4/FLAG873332f14 [2022-01-18 07:58:40,455 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 07:58:40,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-11.i [2022-01-18 07:58:40,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab36a9bb/3e047215aaf04425a5cfdcf40775d3e4/FLAG873332f14 [2022-01-18 07:58:40,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab36a9bb/3e047215aaf04425a5cfdcf40775d3e4 [2022-01-18 07:58:40,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 07:58:40,853 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 07:58:40,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 07:58:40,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 07:58:40,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 07:58:40,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 07:58:40" (1/1) ... [2022-01-18 07:58:40,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5ba5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:40, skipping insertion in model container [2022-01-18 07:58:40,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 07:58:40" (1/1) ... [2022-01-18 07:58:40,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 07:58:40,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 07:58:41,189 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/fib_unsafe-11.i[30813,30826] [2022-01-18 07:58:41,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 07:58:41,195 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 07:58:41,225 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/fib_unsafe-11.i[30813,30826] [2022-01-18 07:58:41,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 07:58:41,254 INFO L208 MainTranslator]: Completed translation [2022-01-18 07:58:41,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41 WrapperNode [2022-01-18 07:58:41,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 07:58:41,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 07:58:41,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 07:58:41,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 07:58:41,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,298 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-01-18 07:58:41,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 07:58:41,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 07:58:41,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 07:58:41,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 07:58:41,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 07:58:41,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 07:58:41,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 07:58:41,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 07:58:41,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (1/1) ... [2022-01-18 07:58:41,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 07:58:41,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 07:58:41,352 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) [2022-01-18 07:58:41,363 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 [2022-01-18 07:58:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-01-18 07:58:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-01-18 07:58:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-01-18 07:58:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-01-18 07:58:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 07:58:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 07:58:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 07:58:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 07:58:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 07:58:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 07:58:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 07:58:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 07:58:41,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 07:58:41,400 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 07:58:41,472 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 07:58:41,473 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 07:58:41,596 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 07:58:41,601 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 07:58:41,601 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-18 07:58:41,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 07:58:41 BoogieIcfgContainer [2022-01-18 07:58:41,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 07:58:41,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 07:58:41,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 07:58:41,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 07:58:41,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 07:58:40" (1/3) ... [2022-01-18 07:58:41,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5c3aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 07:58:41, skipping insertion in model container [2022-01-18 07:58:41,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 07:58:41" (2/3) ... [2022-01-18 07:58:41,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5c3aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 07:58:41, skipping insertion in model container [2022-01-18 07:58:41,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 07:58:41" (3/3) ... [2022-01-18 07:58:41,608 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_unsafe-11.i [2022-01-18 07:58:41,611 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 07:58:41,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 07:58:41,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 07:58:41,611 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 07:58:41,635 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,635 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,635 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,636 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,636 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,636 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,636 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,636 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,637 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,637 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,637 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,637 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,637 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,638 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,638 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,638 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,638 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,638 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,639 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,639 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,639 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,639 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,639 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,639 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,639 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,639 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,640 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,640 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,640 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,640 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,641 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,641 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,641 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,641 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,641 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,642 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,644 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,644 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,644 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,644 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,644 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,646 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,646 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,646 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 07:58:41,646 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 07:58:41,679 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 07:58:41,686 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 [2022-01-18 07:58:41,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 07:58:41,697 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 96 transitions, 202 flow [2022-01-18 07:58:41,797 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:41,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-18 07:58:41,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:58:41,825 INFO L514 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] [2022-01-18 07:58:41,826 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 07:58:41,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:58:41,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times [2022-01-18 07:58:41,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:58:41,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972934168] [2022-01-18 07:58:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:58:41,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:58:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:58:41,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:41,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:58:41,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972934168] [2022-01-18 07:58:41,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972934168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:58:41,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:58:41,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 07:58:41,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633933521] [2022-01-18 07:58:41,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:58:41,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 07:58:41,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:58:41,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 07:58:41,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 07:58:41,994 INFO L87 Difference]: Start difference. First operand has 2292 states, 2291 states have (on average 3.185508511567001) internal successors, (7298), 2291 states have internal predecessors, (7298), 0 states have call successors, (0), 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 26.5) internal successors, (53), 2 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) [2022-01-18 07:58:42,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:58:42,031 INFO L93 Difference]: Finished difference Result 2292 states and 6752 transitions. [2022-01-18 07:58:42,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 07:58:42,033 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 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 [2022-01-18 07:58:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:58:42,059 INFO L225 Difference]: With dead ends: 2292 [2022-01-18 07:58:42,060 INFO L226 Difference]: Without dead ends: 2292 [2022-01-18 07:58:42,061 INFO L932 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 [2022-01-18 07:58:42,063 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:58:42,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 07:58:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-01-18 07:58:42,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2022-01-18 07:58:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 2291 states have (on average 2.947184635530336) internal successors, (6752), 2291 states have internal predecessors, (6752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:42,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 6752 transitions. [2022-01-18 07:58:42,173 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 6752 transitions. Word has length 53 [2022-01-18 07:58:42,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:58:42,174 INFO L470 AbstractCegarLoop]: Abstraction has 2292 states and 6752 transitions. [2022-01-18 07:58:42,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 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) [2022-01-18 07:58:42,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 6752 transitions. [2022-01-18 07:58:42,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-18 07:58:42,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:58:42,179 INFO L514 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] [2022-01-18 07:58:42,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 07:58:42,180 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 07:58:42,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:58:42,181 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times [2022-01-18 07:58:42,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:58:42,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49828286] [2022-01-18 07:58:42,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:58:42,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:58:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:58:42,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:42,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:58:42,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49828286] [2022-01-18 07:58:42,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49828286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:58:42,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:58:42,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 07:58:42,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760317642] [2022-01-18 07:58:42,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:58:42,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 07:58:42,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:58:42,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 07:58:42,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 07:58:42,300 INFO L87 Difference]: Start difference. First operand 2292 states and 6752 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) [2022-01-18 07:58:42,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:58:42,347 INFO L93 Difference]: Finished difference Result 2892 states and 8552 transitions. [2022-01-18 07:58:42,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 07:58:42,347 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 [2022-01-18 07:58:42,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:58:42,359 INFO L225 Difference]: With dead ends: 2892 [2022-01-18 07:58:42,359 INFO L226 Difference]: Without dead ends: 2892 [2022-01-18 07:58:42,362 INFO L932 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 [2022-01-18 07:58:42,363 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 51 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:58:42,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 124 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 07:58:42,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2022-01-18 07:58:42,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2392. [2022-01-18 07:58:42,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2391 states have (on average 2.949393559180259) internal successors, (7052), 2391 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:42,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 7052 transitions. [2022-01-18 07:58:42,422 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 7052 transitions. Word has length 53 [2022-01-18 07:58:42,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:58:42,423 INFO L470 AbstractCegarLoop]: Abstraction has 2392 states and 7052 transitions. [2022-01-18 07:58:42,423 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) [2022-01-18 07:58:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 7052 transitions. [2022-01-18 07:58:42,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-18 07:58:42,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:58:42,429 INFO L514 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, 1, 1] [2022-01-18 07:58:42,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 07:58:42,429 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 07:58:42,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:58:42,430 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times [2022-01-18 07:58:42,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:58:42,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638515079] [2022-01-18 07:58:42,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:58:42,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:58:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:58:42,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:42,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:58:42,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638515079] [2022-01-18 07:58:42,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638515079] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 07:58:42,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701019918] [2022-01-18 07:58:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:58:42,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 07:58:42,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 07:58:42,538 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) [2022-01-18 07:58:42,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 07:58:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:58:42,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 07:58:42,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 07:58:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:42,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 07:58:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:42,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701019918] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 07:58:42,875 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 07:58:42,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-18 07:58:42,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228423887] [2022-01-18 07:58:42,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 07:58:42,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 07:58:42,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:58:42,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 07:58:42,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 07:58:42,882 INFO L87 Difference]: Start difference. First operand 2392 states and 7052 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:42,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:58:42,967 INFO L93 Difference]: Finished difference Result 3792 states and 11252 transitions. [2022-01-18 07:58:42,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 07:58:42,968 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 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 60 [2022-01-18 07:58:42,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:58:42,983 INFO L225 Difference]: With dead ends: 3792 [2022-01-18 07:58:42,983 INFO L226 Difference]: Without dead ends: 3792 [2022-01-18 07:58:42,984 INFO L932 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 [2022-01-18 07:58:42,987 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 352 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:58:42,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 402 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 07:58:42,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2022-01-18 07:58:43,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3792. [2022-01-18 07:58:43,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 3791 states have (on average 2.9680823001846477) internal successors, (11252), 3791 states have internal predecessors, (11252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:43,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 11252 transitions. [2022-01-18 07:58:43,163 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 11252 transitions. Word has length 60 [2022-01-18 07:58:43,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:58:43,164 INFO L470 AbstractCegarLoop]: Abstraction has 3792 states and 11252 transitions. [2022-01-18 07:58:43,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:43,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 11252 transitions. [2022-01-18 07:58:43,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-18 07:58:43,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:58:43,170 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-01-18 07:58:43,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 07:58:43,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 07:58:43,371 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 07:58:43,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:58:43,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times [2022-01-18 07:58:43,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:58:43,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839589842] [2022-01-18 07:58:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:58:43,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:58:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:58:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:43,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:58:43,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839589842] [2022-01-18 07:58:43,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839589842] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 07:58:43,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494040697] [2022-01-18 07:58:43,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 07:58:43,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 07:58:43,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 07:58:43,499 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) [2022-01-18 07:58:43,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 07:58:43,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 07:58:43,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 07:58:43,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 07:58:43,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 07:58:43,702 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:43,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 07:58:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:43,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494040697] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 07:58:43,841 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 07:58:43,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-01-18 07:58:43,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655699551] [2022-01-18 07:58:43,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 07:58:43,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 07:58:43,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:58:43,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 07:58:43,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-01-18 07:58:43,846 INFO L87 Difference]: Start difference. First operand 3792 states and 11252 transitions. Second operand has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:44,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:58:44,016 INFO L93 Difference]: Finished difference Result 6592 states and 19652 transitions. [2022-01-18 07:58:44,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 07:58:44,016 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 0 states have call successors, (0), 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 74 [2022-01-18 07:58:44,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:58:44,041 INFO L225 Difference]: With dead ends: 6592 [2022-01-18 07:58:44,041 INFO L226 Difference]: Without dead ends: 6592 [2022-01-18 07:58:44,042 INFO L932 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 [2022-01-18 07:58:44,042 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 1142 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:58:44,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 626 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 07:58:44,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2022-01-18 07:58:44,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 6592. [2022-01-18 07:58:44,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6592 states, 6591 states have (on average 2.9816416325292066) internal successors, (19652), 6591 states have internal predecessors, (19652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6592 states to 6592 states and 19652 transitions. [2022-01-18 07:58:44,174 INFO L78 Accepts]: Start accepts. Automaton has 6592 states and 19652 transitions. Word has length 74 [2022-01-18 07:58:44,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:58:44,175 INFO L470 AbstractCegarLoop]: Abstraction has 6592 states and 19652 transitions. [2022-01-18 07:58:44,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:44,175 INFO L276 IsEmpty]: Start isEmpty. Operand 6592 states and 19652 transitions. [2022-01-18 07:58:44,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-18 07:58:44,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:58:44,190 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 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] [2022-01-18 07:58:44,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 07:58:44,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-18 07:58:44,416 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 07:58:44,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:58:44,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times [2022-01-18 07:58:44,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:58:44,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406019925] [2022-01-18 07:58:44,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:58:44,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:58:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:58:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:44,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:58:44,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406019925] [2022-01-18 07:58:44,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406019925] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 07:58:44,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668835552] [2022-01-18 07:58:44,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 07:58:44,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 07:58:44,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 07:58:44,579 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) [2022-01-18 07:58:44,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 07:58:44,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-01-18 07:58:44,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 07:58:44,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-18 07:58:44,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 07:58:44,819 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:44,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 07:58:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:45,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668835552] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 07:58:45,136 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 07:58:45,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-01-18 07:58:45,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954133471] [2022-01-18 07:58:45,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 07:58:45,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 07:58:45,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:58:45,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 07:58:45,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 07:58:45,138 INFO L87 Difference]: Start difference. First operand 6592 states and 19652 transitions. Second operand has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:45,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:58:45,656 INFO L93 Difference]: Finished difference Result 12192 states and 36452 transitions. [2022-01-18 07:58:45,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 07:58:45,656 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 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 102 [2022-01-18 07:58:45,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:58:45,682 INFO L225 Difference]: With dead ends: 12192 [2022-01-18 07:58:45,682 INFO L226 Difference]: Without dead ends: 12192 [2022-01-18 07:58:45,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 07:58:45,683 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 2811 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:58:45,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 1197 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 07:58:45,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12192 states. [2022-01-18 07:58:45,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12192 to 12192. [2022-01-18 07:58:45,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12192 states, 12191 states have (on average 2.990074645230088) internal successors, (36452), 12191 states have internal predecessors, (36452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:45,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12192 states to 12192 states and 36452 transitions. [2022-01-18 07:58:45,923 INFO L78 Accepts]: Start accepts. Automaton has 12192 states and 36452 transitions. Word has length 102 [2022-01-18 07:58:45,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:58:45,923 INFO L470 AbstractCegarLoop]: Abstraction has 12192 states and 36452 transitions. [2022-01-18 07:58:45,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.705882352941177) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:58:45,924 INFO L276 IsEmpty]: Start isEmpty. Operand 12192 states and 36452 transitions. [2022-01-18 07:58:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-18 07:58:45,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:58:45,944 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:58:45,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 07:58:46,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 07:58:46,160 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 07:58:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:58:46,161 INFO L85 PathProgramCache]: Analyzing trace with hash 835265426, now seen corresponding path program 4 times [2022-01-18 07:58:46,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:58:46,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765745338] [2022-01-18 07:58:46,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:58:46,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:58:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:58:46,546 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:46,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:58:46,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765745338] [2022-01-18 07:58:46,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765745338] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 07:58:46,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377455351] [2022-01-18 07:58:46,547 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 07:58:46,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 07:58:46,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 07:58:46,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 07:58:46,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 07:58:46,658 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 07:58:46,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 07:58:46,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 50 conjunts are in the unsatisfiable core [2022-01-18 07:58:46,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 07:58:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 572 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:58:49,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:07:05,196 WARN L228 SmtUtils]: Spent 7.28s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-01-18 08:13:21,562 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 08:13:21,563 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 08:13:21,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 08:13:21,592 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 08:13:21,593 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 08:13:21,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:13:21,764 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 3ms.. [2022-01-18 08:13:21,765 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 08:13:21,765 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 08:13:21,767 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-01-18 08:13:21,768 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 08:13:21,768 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 08:13:21,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 08:13:21 BasicIcfg [2022-01-18 08:13:21,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 08:13:21,770 INFO L158 Benchmark]: Toolchain (without parser) took 880916.80ms. Allocated memory was 375.4MB in the beginning and 673.2MB in the end (delta: 297.8MB). Free memory was 320.2MB in the beginning and 340.1MB in the end (delta: -19.9MB). Peak memory consumption was 280.0MB. Max. memory is 16.0GB. [2022-01-18 08:13:21,770 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 375.4MB. Free memory is still 337.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 08:13:21,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.94ms. Allocated memory was 375.4MB in the beginning and 450.9MB in the end (delta: 75.5MB). Free memory was 320.0MB in the beginning and 415.8MB in the end (delta: -95.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. [2022-01-18 08:13:21,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.01ms. Allocated memory is still 450.9MB. Free memory was 415.8MB in the beginning and 414.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 08:13:21,772 INFO L158 Benchmark]: Boogie Preprocessor took 25.42ms. Allocated memory is still 450.9MB. Free memory was 414.8MB in the beginning and 412.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 08:13:21,772 INFO L158 Benchmark]: RCFGBuilder took 277.46ms. Allocated memory is still 450.9MB. Free memory was 412.7MB in the beginning and 398.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-18 08:13:21,772 INFO L158 Benchmark]: TraceAbstraction took 880166.21ms. Allocated memory was 450.9MB in the beginning and 673.2MB in the end (delta: 222.3MB). Free memory was 398.0MB in the beginning and 340.1MB in the end (delta: 57.9MB). Peak memory consumption was 280.2MB. Max. memory is 16.0GB. [2022-01-18 08:13:21,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 375.4MB. Free memory is still 337.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 392.94ms. Allocated memory was 375.4MB in the beginning and 450.9MB in the end (delta: 75.5MB). Free memory was 320.0MB in the beginning and 415.8MB in the end (delta: -95.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.01ms. Allocated memory is still 450.9MB. Free memory was 415.8MB in the beginning and 414.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.42ms. Allocated memory is still 450.9MB. Free memory was 414.8MB in the beginning and 412.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 277.46ms. Allocated memory is still 450.9MB. Free memory was 412.7MB in the beginning and 398.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 880166.21ms. Allocated memory was 450.9MB in the beginning and 673.2MB in the end (delta: 222.3MB). Free memory was 398.0MB in the beginning and 340.1MB in the end (delta: 57.9MB). Peak memory consumption was 280.2MB. Max. memory is 16.0GB. * 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 - TimeoutResultAtElement [Line: 726]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 3ms.. - TimeoutResultAtElement [Line: 722]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 3ms.. - TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 3ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 880.1s, OverallIterations: 6, TraceHistogramMax: 15, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4356 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4356 mSDsluCounter, 2427 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2006 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 206 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 439 mSDtfsCounter, 206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 546 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1019 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12192occurred in iteration=5, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 500 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 1285 SizeOfPredicates, 22 NumberOfNonLiveVariables, 552 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 0/537 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: Timeout Completed graceful shutdown