/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:09:24,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:09:24,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:09:24,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 00:09:24,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 00:09:24,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 00:09:24,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 00:09:24,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 00:09:24,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 00:09:24,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 00:09:24,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 00:09:24,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 00:09:24,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 00:09:24,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 00:09:24,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 00:09:24,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 00:09:24,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 00:09:24,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 00:09:24,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 00:09:24,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 00:09:24,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 00:09:24,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 00:09:24,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 00:09:24,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 00:09:24,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 00:09:24,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 00:09:24,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 00:09:24,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 00:09:24,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 00:09:24,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 00:09:24,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 00:09:24,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 00:09:24,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 00:09:24,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 00:09:24,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 00:09:24,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 00:09:24,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 00:09:24,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 00:09:24,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:09:24,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:09:24,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:09:24,742 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 [2021-06-05 00:09:24,780 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:09:24,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:09:24,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:09:24,781 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:09:24,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:09:24,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:09:24,783 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:09:24,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:09:24,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:09:24,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:09:24,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:09:24,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:09:24,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:09:24,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:09:24,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:09:24,785 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:09:24,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:09:24,785 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:09:24,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:09:24,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:09:24,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:09:24,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:09:24,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:09:24,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:09:24,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:09:24,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:09:24,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:09:24,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:09:24,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:09:24,787 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:09:24,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:09:24,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:09:25,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:09:25,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:09:25,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:09:25,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:09:25,135 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:09:25,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-06-05 00:09:25,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b4d4fcaf/b1949a8a97ab4f01a25c0927a9456504/FLAG4fde25ca0 [2021-06-05 00:09:25,765 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:09:25,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-06-05 00:09:25,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b4d4fcaf/b1949a8a97ab4f01a25c0927a9456504/FLAG4fde25ca0 [2021-06-05 00:09:26,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b4d4fcaf/b1949a8a97ab4f01a25c0927a9456504 [2021-06-05 00:09:26,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:09:26,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:09:26,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:09:26,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:09:26,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:09:26,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2b5bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26, skipping insertion in model container [2021-06-05 00:09:26,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:09:26,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:09:26,342 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i[949,962] [2021-06-05 00:09:26,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:09:26,477 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:09:26,487 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i[949,962] [2021-06-05 00:09:26,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:09:26,592 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:09:26,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26 WrapperNode [2021-06-05 00:09:26,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:09:26,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:09:26,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:09:26,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:09:26,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:09:26,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:09:26,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:09:26,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:09:26,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... [2021-06-05 00:09:26,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:09:26,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:09:26,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:09:26,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:09:26,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:09:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:09:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:09:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:09:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:09:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:09:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:09:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:09:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:09:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:09:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:09:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:09:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:09:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:09:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:09:26,786 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:09:27,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:09:27,167 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:09:27,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:09:27 BoogieIcfgContainer [2021-06-05 00:09:27,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:09:27,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:09:27,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:09:27,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:09:27,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:09:26" (1/3) ... [2021-06-05 00:09:27,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31caf3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:09:27, skipping insertion in model container [2021-06-05 00:09:27,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:09:26" (2/3) ... [2021-06-05 00:09:27,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31caf3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:09:27, skipping insertion in model container [2021-06-05 00:09:27,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:09:27" (3/3) ... [2021-06-05 00:09:27,178 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt.i [2021-06-05 00:09:27,183 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:09:27,184 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:09:27,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:09:27,184 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:09:27,216 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,216 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,216 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,216 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,217 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,217 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,221 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,221 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,221 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,222 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,222 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,230 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,233 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,239 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,239 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:09:27,243 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:09:27,261 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 00:09:27,288 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:09:27,288 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:09:27,288 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:09:27,288 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:09:27,288 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:09:27,288 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:09:27,288 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:09:27,289 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:09:27,302 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 00:09:27,774 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:27,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:27,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 00:09:27,850 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:27,851 INFO L521 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] [2021-06-05 00:09:27,853 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:27,858 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-06-05 00:09:27,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:27,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556116392] [2021-06-05 00:09:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:09:28,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:28,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556116392] [2021-06-05 00:09:28,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556116392] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:28,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:28,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:09:28,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181913152] [2021-06-05 00:09:28,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:09:28,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:28,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:09:28,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:09:28,302 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 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 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:28,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:28,793 INFO L93 Difference]: Finished difference Result 17698 states and 60802 transitions. [2021-06-05 00:09:28,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:09:28,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2021-06-05 00:09:28,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:28,856 INFO L225 Difference]: With dead ends: 17698 [2021-06-05 00:09:28,856 INFO L226 Difference]: Without dead ends: 5948 [2021-06-05 00:09:28,857 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 196.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:09:28,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2021-06-05 00:09:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 5156. [2021-06-05 00:09:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 3.3594568380213383) internal successors, (17318), 5155 states have internal predecessors, (17318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:29,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 17318 transitions. [2021-06-05 00:09:29,270 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 17318 transitions. Word has length 49 [2021-06-05 00:09:29,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:29,273 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 17318 transitions. [2021-06-05 00:09:29,274 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 17318 transitions. [2021-06-05 00:09:29,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 00:09:29,293 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:29,294 INFO L521 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] [2021-06-05 00:09:29,294 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:09:29,294 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:29,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:29,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2138163718, now seen corresponding path program 1 times [2021-06-05 00:09:29,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:29,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878051636] [2021-06-05 00:09:29,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:09:29,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:29,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878051636] [2021-06-05 00:09:29,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878051636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:29,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:29,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:09:29,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965836070] [2021-06-05 00:09:29,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:09:29,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:29,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:09:29,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:09:29,457 INFO L87 Difference]: Start difference. First operand 5156 states and 17318 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:29,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:29,688 INFO L93 Difference]: Finished difference Result 6746 states and 22534 transitions. [2021-06-05 00:09:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:09:29,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-06-05 00:09:29,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:29,707 INFO L225 Difference]: With dead ends: 6746 [2021-06-05 00:09:29,708 INFO L226 Difference]: Without dead ends: 3270 [2021-06-05 00:09:29,708 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 133.4ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:09:29,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2021-06-05 00:09:29,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 3270. [2021-06-05 00:09:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 3269 states have (on average 3.241358213520954) internal successors, (10596), 3269 states have internal predecessors, (10596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:29,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 10596 transitions. [2021-06-05 00:09:29,809 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 10596 transitions. Word has length 52 [2021-06-05 00:09:29,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:29,810 INFO L482 AbstractCegarLoop]: Abstraction has 3270 states and 10596 transitions. [2021-06-05 00:09:29,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:29,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 10596 transitions. [2021-06-05 00:09:29,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 00:09:29,818 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:29,818 INFO L521 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] [2021-06-05 00:09:29,819 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:09:29,819 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:29,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:29,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1066159869, now seen corresponding path program 1 times [2021-06-05 00:09:29,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:29,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931710693] [2021-06-05 00:09:29,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:29,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:09:29,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:29,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931710693] [2021-06-05 00:09:29,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931710693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:29,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:29,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:09:29,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522656052] [2021-06-05 00:09:29,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:09:29,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:29,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:09:29,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:09:29,941 INFO L87 Difference]: Start difference. First operand 3270 states and 10596 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:30,098 INFO L93 Difference]: Finished difference Result 4490 states and 14403 transitions. [2021-06-05 00:09:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:09:30,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-06-05 00:09:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:30,109 INFO L225 Difference]: With dead ends: 4490 [2021-06-05 00:09:30,109 INFO L226 Difference]: Without dead ends: 1877 [2021-06-05 00:09:30,109 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 134.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 00:09:30,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2021-06-05 00:09:30,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2021-06-05 00:09:30,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1876 states have (on average 3.064498933901919) internal successors, (5749), 1876 states have internal predecessors, (5749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:30,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 5749 transitions. [2021-06-05 00:09:30,166 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 5749 transitions. Word has length 55 [2021-06-05 00:09:30,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:30,168 INFO L482 AbstractCegarLoop]: Abstraction has 1877 states and 5749 transitions. [2021-06-05 00:09:30,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:30,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 5749 transitions. [2021-06-05 00:09:30,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 00:09:30,174 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:09:30,174 INFO L521 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] [2021-06-05 00:09:30,174 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:09:30,174 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:09:30,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:09:30,175 INFO L82 PathProgramCache]: Analyzing trace with hash 440921200, now seen corresponding path program 1 times [2021-06-05 00:09:30,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:09:30,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345135475] [2021-06-05 00:09:30,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:09:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:09:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:09:30,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:09:30,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345135475] [2021-06-05 00:09:30,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345135475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:09:30,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:09:30,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:09:30,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043930699] [2021-06-05 00:09:30,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:09:30,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:09:30,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:09:30,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:09:30,331 INFO L87 Difference]: Start difference. First operand 1877 states and 5749 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:30,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:09:30,436 INFO L93 Difference]: Finished difference Result 1749 states and 5333 transitions. [2021-06-05 00:09:30,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 00:09:30,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 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 [2021-06-05 00:09:30,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:09:30,437 INFO L225 Difference]: With dead ends: 1749 [2021-06-05 00:09:30,437 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:09:30,437 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 91.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:09:30,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:09:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:09:30,437 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) [2021-06-05 00:09:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:09:30,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-06-05 00:09:30,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:09:30,438 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:09:30,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:09:30,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:09:30,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:09:30,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:09:30,440 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:09:30,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:09:30 BasicIcfg [2021-06-05 00:09:30,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:09:30,446 INFO L168 Benchmark]: Toolchain (without parser) took 4361.90 ms. Allocated memory was 354.4 MB in the beginning and 920.6 MB in the end (delta: 566.2 MB). Free memory was 316.2 MB in the beginning and 819.3 MB in the end (delta: -503.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:30,447 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 354.4 MB. Free memory was 334.6 MB in the beginning and 334.5 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:09:30,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.88 ms. Allocated memory is still 354.4 MB. Free memory was 316.0 MB in the beginning and 316.3 MB in the end (delta: -276.1 kB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:30,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.21 ms. Allocated memory is still 354.4 MB. Free memory was 316.3 MB in the beginning and 314.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:30,450 INFO L168 Benchmark]: Boogie Preprocessor took 22.32 ms. Allocated memory is still 354.4 MB. Free memory was 314.2 MB in the beginning and 313.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:30,451 INFO L168 Benchmark]: RCFGBuilder took 504.88 ms. Allocated memory is still 354.4 MB. Free memory was 313.1 MB in the beginning and 288.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:30,453 INFO L168 Benchmark]: TraceAbstraction took 3271.99 ms. Allocated memory was 354.4 MB in the beginning and 920.6 MB in the end (delta: 566.2 MB). Free memory was 286.9 MB in the beginning and 819.3 MB in the end (delta: -532.4 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.0 GB. [2021-06-05 00:09:30,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 354.4 MB. Free memory was 334.6 MB in the beginning and 334.5 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 505.88 ms. Allocated memory is still 354.4 MB. Free memory was 316.0 MB in the beginning and 316.3 MB in the end (delta: -276.1 kB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.21 ms. Allocated memory is still 354.4 MB. Free memory was 316.3 MB in the beginning and 314.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.32 ms. Allocated memory is still 354.4 MB. Free memory was 314.2 MB in the beginning and 313.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 504.88 ms. Allocated memory is still 354.4 MB. Free memory was 313.1 MB in the beginning and 288.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3271.99 ms. Allocated memory was 354.4 MB in the beginning and 920.6 MB in the end (delta: 566.2 MB). Free memory was 286.9 MB in the beginning and 819.3 MB in the end (delta: -532.4 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3154.3ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 107.5ms, AutomataDifference: 1118.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 485.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 452 SDtfs, 751 SDslu, 1562 SDs, 0 SdLazy, 153 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 155.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 556.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 558.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 792 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 42.1ms SsaConstructionTime, 160.2ms SatisfiabilityAnalysisTime, 524.7ms InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 1134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...