/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:51:42,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:51:42,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:51:42,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:51:42,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:51:42,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:51:42,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:51:42,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:51:42,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:51:42,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:51:42,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:51:42,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:51:42,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:51:42,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:51:42,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:51:42,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:51:42,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:51:42,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:51:42,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:51:42,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:51:42,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:51:42,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:51:42,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:51:42,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:51:42,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-26 23:51:42,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-26 23:51:42,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-26 23:51:42,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-26 23:51:42,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-26 23:51:42,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-26 23:51:42,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:51:42,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:51:42,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:51:42,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:51:42,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:51:42,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:51:42,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:51:42,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:51:42,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:51:42,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:51:42,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:51:42,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 23:51:42,817 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:51:42,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:51:42,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:51:42,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:51:42,822 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:51:42,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:51:42,822 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:51:42,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:51:42,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:51:42,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:51:42,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:51:42,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:51:42,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:51:42,825 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:51:42,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:51:42,825 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:51:42,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:51:42,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:51:42,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:51:42,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:51:42,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:51:42,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:51:42,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:51:42,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:51:42,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:51:42,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:51:42,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:51:42,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:51:42,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:51:42,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:51:43,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:51:43,132 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:51:43,135 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:51:43,137 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:51:43,137 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:51:43,138 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2019-12-26 23:51:43,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70a1105a9/a3630ee0e62d49e8ac42753f974227a6/FLAGc3dd2096a [2019-12-26 23:51:43,790 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:51:43,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2019-12-26 23:51:43,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70a1105a9/a3630ee0e62d49e8ac42753f974227a6/FLAGc3dd2096a [2019-12-26 23:51:44,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70a1105a9/a3630ee0e62d49e8ac42753f974227a6 [2019-12-26 23:51:44,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:51:44,049 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:51:44,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:51:44,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:51:44,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:51:44,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65149110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44, skipping insertion in model container [2019-12-26 23:51:44,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:51:44,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:51:44,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:51:44,597 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:51:44,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:51:44,730 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:51:44,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44 WrapperNode [2019-12-26 23:51:44,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:51:44,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:51:44,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:51:44,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:51:44,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:51:44,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:51:44,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:51:44,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:51:44,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (1/1) ... [2019-12-26 23:51:44,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:51:44,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:51:44,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:51:44,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:51:44,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (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 [2019-12-26 23:51:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:51:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:51:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:51:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:51:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:51:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:51:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:51:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:51:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:51:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:51:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:51:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:51:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:51:44,892 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:51:45,266 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:51:45,266 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:51:45,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:51:45 BoogieIcfgContainer [2019-12-26 23:51:45,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:51:45,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:51:45,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:51:45,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:51:45,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:51:44" (1/3) ... [2019-12-26 23:51:45,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384708db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:51:45, skipping insertion in model container [2019-12-26 23:51:45,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:51:44" (2/3) ... [2019-12-26 23:51:45,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384708db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:51:45, skipping insertion in model container [2019-12-26 23:51:45,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:51:45" (3/3) ... [2019-12-26 23:51:45,276 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2019-12-26 23:51:45,285 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:51:45,285 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:51:45,292 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:51:45,293 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:51:45,321 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,322 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,322 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,322 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,323 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,323 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,324 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,324 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,324 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,324 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,325 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,325 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,325 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,325 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,326 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,326 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,326 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,326 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,331 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,331 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,331 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,332 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,339 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,340 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,340 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,340 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,345 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,346 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,346 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,346 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:51:45,373 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:51:45,397 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:51:45,397 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:51:45,397 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:51:45,397 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:51:45,398 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:51:45,398 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:51:45,398 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:51:45,398 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:51:45,418 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 52 transitions [2019-12-26 23:51:45,420 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-26 23:51:45,507 INFO L132 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-26 23:51:45,507 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:51:45,519 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:51:45,523 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-26 23:51:45,562 INFO L132 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-26 23:51:45,562 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:51:45,564 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:51:45,566 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:51:45,567 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:51:47,040 INFO L206 etLargeBlockEncoding]: Checked pairs total: 495 [2019-12-26 23:51:47,041 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-26 23:51:47,044 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-26 23:51:47,054 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-26 23:51:47,056 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-26 23:51:47,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:51:47,063 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:51:47,064 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:51:47,064 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:51:47,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:51:47,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1253178052, now seen corresponding path program 1 times [2019-12-26 23:51:47,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:51:47,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065052855] [2019-12-26 23:51:47,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:51:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:51:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:51:47,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065052855] [2019-12-26 23:51:47,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:51:47,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:51:47,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384332040] [2019-12-26 23:51:47,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:51:47,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:51:47,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:51:47,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:51:47,354 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-26 23:51:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:51:47,393 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-26 23:51:47,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:51:47,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:51:47,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:51:47,426 INFO L225 Difference]: With dead ends: 42 [2019-12-26 23:51:47,426 INFO L226 Difference]: Without dead ends: 34 [2019-12-26 23:51:47,427 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:51:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-26 23:51:47,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-26 23:51:47,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-26 23:51:47,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-26 23:51:47,470 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-26 23:51:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:51:47,470 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-26 23:51:47,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:51:47,471 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-26 23:51:47,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:51:47,471 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:51:47,472 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:51:47,472 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:51:47,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:51:47,472 INFO L82 PathProgramCache]: Analyzing trace with hash 193813457, now seen corresponding path program 1 times [2019-12-26 23:51:47,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:51:47,473 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097995522] [2019-12-26 23:51:47,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:51:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:51:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:51:47,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097995522] [2019-12-26 23:51:47,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:51:47,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:51:47,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077587874] [2019-12-26 23:51:47,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:51:47,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:51:47,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:51:47,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:51:47,584 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-26 23:51:47,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:51:47,618 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-26 23:51:47,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:51:47,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-26 23:51:47,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:51:47,619 INFO L225 Difference]: With dead ends: 39 [2019-12-26 23:51:47,620 INFO L226 Difference]: Without dead ends: 31 [2019-12-26 23:51:47,621 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:51:47,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-26 23:51:47,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-26 23:51:47,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-26 23:51:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-26 23:51:47,631 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-26 23:51:47,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:51:47,632 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-26 23:51:47,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:51:47,632 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-26 23:51:47,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:51:47,634 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:51:47,634 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:51:47,634 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:51:47,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:51:47,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1741916971, now seen corresponding path program 1 times [2019-12-26 23:51:47,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:51:47,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917601506] [2019-12-26 23:51:47,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:51:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:51:47,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:51:47,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917601506] [2019-12-26 23:51:47,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:51:47,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:51:47,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133935976] [2019-12-26 23:51:47,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:51:47,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:51:47,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:51:47,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:51:47,692 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 3 states. [2019-12-26 23:51:47,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:51:47,711 INFO L93 Difference]: Finished difference Result 31 states and 51 transitions. [2019-12-26 23:51:47,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:51:47,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:51:47,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:51:47,712 INFO L225 Difference]: With dead ends: 31 [2019-12-26 23:51:47,713 INFO L226 Difference]: Without dead ends: 17 [2019-12-26 23:51:47,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:51:47,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-26 23:51:47,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-26 23:51:47,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-26 23:51:47,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-26 23:51:47,716 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-26 23:51:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:51:47,716 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-26 23:51:47,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:51:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-26 23:51:47,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:51:47,717 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:51:47,717 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:51:47,718 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:51:47,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:51:47,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1835149176, now seen corresponding path program 1 times [2019-12-26 23:51:47,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:51:47,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279306853] [2019-12-26 23:51:47,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:51:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:51:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:51:47,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279306853] [2019-12-26 23:51:47,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:51:47,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:51:47,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47691873] [2019-12-26 23:51:47,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:51:47,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:51:47,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:51:47,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:51:47,800 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-12-26 23:51:47,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:51:47,806 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-26 23:51:47,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:51:47,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-26 23:51:47,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:51:47,807 INFO L225 Difference]: With dead ends: 16 [2019-12-26 23:51:47,807 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:51:47,808 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:51:47,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:51:47,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:51:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:51:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:51:47,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:51:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:51:47,809 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:51:47,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:51:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:51:47,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:51:47,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:51:47 BasicIcfg [2019-12-26 23:51:47,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:51:47,816 INFO L168 Benchmark]: Toolchain (without parser) took 3766.19 ms. Allocated memory was 143.1 MB in the beginning and 251.1 MB in the end (delta: 108.0 MB). Free memory was 98.3 MB in the beginning and 175.9 MB in the end (delta: -77.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2019-12-26 23:51:47,816 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-26 23:51:47,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.76 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 97.9 MB in the beginning and 157.9 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-12-26 23:51:47,818 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.37 ms. Allocated memory is still 200.3 MB. Free memory was 157.9 MB in the beginning and 155.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-26 23:51:47,819 INFO L168 Benchmark]: Boogie Preprocessor took 27.49 ms. Allocated memory is still 200.3 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-26 23:51:47,820 INFO L168 Benchmark]: RCFGBuilder took 456.36 ms. Allocated memory is still 200.3 MB. Free memory was 154.4 MB in the beginning and 134.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-26 23:51:47,821 INFO L168 Benchmark]: TraceAbstraction took 2543.49 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 133.7 MB in the beginning and 175.9 MB in the end (delta: -42.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-12-26 23:51:47,826 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 143.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.76 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 97.9 MB in the beginning and 157.9 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.37 ms. Allocated memory is still 200.3 MB. Free memory was 157.9 MB in the beginning and 155.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.49 ms. Allocated memory is still 200.3 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 456.36 ms. Allocated memory is still 200.3 MB. Free memory was 154.4 MB in the beginning and 134.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2543.49 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 133.7 MB in the beginning and 175.9 MB in the end (delta: -42.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 61 ProgramPointsBefore, 21 ProgramPointsAfterwards, 52 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 238 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 495 CheckedPairsTotal, 42 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 21 SDslu, 24 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 558 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...