/usr/bin/java -Xmx16000000000 -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/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:02:52,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:02:52,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:02:52,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:02:52,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:02:52,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:02:52,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:02:52,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:02:52,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:02:52,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:02:52,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:02:52,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:02:52,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:02:52,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:02:52,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:02:52,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:02:52,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:02:52,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:02:52,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:02:52,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:02:53,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:02:53,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:02:53,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:02:53,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:02:53,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:02:53,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:02:53,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:02:53,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:02:53,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:02:53,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:02:53,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:02:53,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:02:53,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:02:53,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:02:53,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:02:53,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:02:53,016 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 [2020-10-11 15:02:53,042 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:02:53,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:02:53,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:02:53,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:02:53,044 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:02:53,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:02:53,045 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:02:53,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:02:53,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:02:53,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:02:53,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:02:53,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:02:53,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:02:53,046 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:02:53,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:02:53,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:02:53,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:02:53,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:02:53,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:02:53,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:02:53,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:02:53,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:02:53,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:02:53,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:02:53,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:02:53,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:02:53,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:02:53,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:02:53,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:02:53,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:02:53,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:02:53,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:02:53,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:02:53,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:02:53,347 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:02:53,348 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2020-10-11 15:02:53,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100439635/004ac36476864905b8d62dcdc4313d5b/FLAGe3ee31b99 [2020-10-11 15:02:53,948 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:02:53,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2020-10-11 15:02:53,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100439635/004ac36476864905b8d62dcdc4313d5b/FLAGe3ee31b99 [2020-10-11 15:02:54,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100439635/004ac36476864905b8d62dcdc4313d5b [2020-10-11 15:02:54,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:02:54,261 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:02:54,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:02:54,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:02:54,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:02:54,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:54,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff88cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54, skipping insertion in model container [2020-10-11 15:02:54,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:54,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:02:54,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:02:54,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:02:54,705 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:02:54,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:02:54,998 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:02:54,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54 WrapperNode [2020-10-11 15:02:54,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:02:55,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:02:55,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:02:55,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:02:55,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:55,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:55,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:02:55,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:02:55,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:02:55,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:02:55,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:55,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:55,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:55,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:55,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:55,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:55,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (1/1) ... [2020-10-11 15:02:55,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:02:55,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:02:55,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:02:55,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:02:55,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (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 [2020-10-11 15:02:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:02:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:02:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:02:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:02:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:02:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:02:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:02:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:02:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:02:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:02:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:02:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:02:55,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:02:55,158 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:02:55,499 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:02:55,500 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:02:55,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:02:55 BoogieIcfgContainer [2020-10-11 15:02:55,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:02:55,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:02:55,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:02:55,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:02:55,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:02:54" (1/3) ... [2020-10-11 15:02:55,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7726a770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:02:55, skipping insertion in model container [2020-10-11 15:02:55,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:02:54" (2/3) ... [2020-10-11 15:02:55,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7726a770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:02:55, skipping insertion in model container [2020-10-11 15:02:55,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:02:55" (3/3) ... [2020-10-11 15:02:55,511 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2020-10-11 15:02:55,523 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:02:55,524 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:02:55,531 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:02:55,532 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:02:55,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,568 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,568 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,573 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,574 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,580 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,581 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,581 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,583 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,584 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:02:55,600 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:02:55,621 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:02:55,621 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:02:55,622 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:02:55,622 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:02:55,622 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:02:55,622 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:02:55,622 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:02:55,622 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:02:55,636 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:02:55,639 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-11 15:02:55,642 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-11 15:02:55,644 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-11 15:02:55,690 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-11 15:02:55,691 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:02:55,696 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 15:02:55,699 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:02:57,124 INFO L132 LiptonReduction]: Checked pairs total: 2579 [2020-10-11 15:02:57,124 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-11 15:02:57,132 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-11 15:02:57,163 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-11 15:02:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-11 15:02:57,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:02:57,173 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:57,174 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:57,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:57,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:57,181 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-11 15:02:57,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:57,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029365918] [2020-10-11 15:02:57,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:57,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:57,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029365918] [2020-10-11 15:02:57,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:57,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:02:57,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921145581] [2020-10-11 15:02:57,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 15:02:57,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:57,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 15:02:57,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:02:57,382 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-11 15:02:57,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:57,418 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-11 15:02:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 15:02:57,419 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-11 15:02:57,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:57,437 INFO L225 Difference]: With dead ends: 362 [2020-10-11 15:02:57,438 INFO L226 Difference]: Without dead ends: 298 [2020-10-11 15:02:57,439 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:02:57,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-11 15:02:57,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-11 15:02:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-11 15:02:57,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-11 15:02:57,516 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-11 15:02:57,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:57,517 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-11 15:02:57,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 15:02:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-11 15:02:57,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:02:57,519 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:57,519 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:57,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:02:57,520 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:57,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:57,520 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-11 15:02:57,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:57,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062742415] [2020-10-11 15:02:57,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:57,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062742415] [2020-10-11 15:02:57,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:57,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:02:57,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899478621] [2020-10-11 15:02:57,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:02:57,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:57,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:02:57,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:02:57,665 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-11 15:02:57,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:57,722 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-11 15:02:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:02:57,725 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-11 15:02:57,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:57,731 INFO L225 Difference]: With dead ends: 330 [2020-10-11 15:02:57,732 INFO L226 Difference]: Without dead ends: 266 [2020-10-11 15:02:57,733 INFO L673 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 [2020-10-11 15:02:57,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-11 15:02:57,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-11 15:02:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-11 15:02:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-11 15:02:57,773 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-11 15:02:57,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:57,774 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-11 15:02:57,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:02:57,774 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-11 15:02:57,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:02:57,776 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:57,776 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:57,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:02:57,777 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:57,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-10-11 15:02:57,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:57,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114601194] [2020-10-11 15:02:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:57,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114601194] [2020-10-11 15:02:57,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:57,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:02:57,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379792744] [2020-10-11 15:02:57,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:02:57,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:57,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:02:57,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:02:57,859 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-11 15:02:57,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:57,919 INFO L93 Difference]: Finished difference Result 326 states and 882 transitions. [2020-10-11 15:02:57,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:02:57,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-11 15:02:57,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:57,922 INFO L225 Difference]: With dead ends: 326 [2020-10-11 15:02:57,922 INFO L226 Difference]: Without dead ends: 158 [2020-10-11 15:02:57,923 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:02:57,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-11 15:02:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-11 15:02:57,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-11 15:02:57,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 396 transitions. [2020-10-11 15:02:57,934 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 396 transitions. Word has length 10 [2020-10-11 15:02:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:57,934 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 396 transitions. [2020-10-11 15:02:57,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:02:57,934 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 396 transitions. [2020-10-11 15:02:57,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:02:57,936 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:57,936 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:57,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:02:57,937 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:57,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:57,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-10-11 15:02:57,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:57,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204837745] [2020-10-11 15:02:57,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:58,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204837745] [2020-10-11 15:02:58,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:58,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:02:58,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140134022] [2020-10-11 15:02:58,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:02:58,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:58,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:02:58,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:02:58,086 INFO L87 Difference]: Start difference. First operand 158 states and 396 transitions. Second operand 5 states. [2020-10-11 15:02:58,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:58,152 INFO L93 Difference]: Finished difference Result 194 states and 470 transitions. [2020-10-11 15:02:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:02:58,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-11 15:02:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:58,153 INFO L225 Difference]: With dead ends: 194 [2020-10-11 15:02:58,154 INFO L226 Difference]: Without dead ends: 74 [2020-10-11 15:02:58,154 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:02:58,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-11 15:02:58,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-11 15:02:58,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-11 15:02:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-11 15:02:58,167 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 12 [2020-10-11 15:02:58,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:58,167 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-11 15:02:58,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:02:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-11 15:02:58,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:02:58,170 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:02:58,170 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:02:58,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:02:58,170 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:02:58,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:02:58,171 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-10-11 15:02:58,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:02:58,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344933484] [2020-10-11 15:02:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:02:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:02:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:02:58,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344933484] [2020-10-11 15:02:58,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:02:58,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:02:58,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929845714] [2020-10-11 15:02:58,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:02:58,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:02:58,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:02:58,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:02:58,279 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-10-11 15:02:58,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:02:58,317 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-11 15:02:58,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:02:58,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-11 15:02:58,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:02:58,318 INFO L225 Difference]: With dead ends: 62 [2020-10-11 15:02:58,318 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:02:58,318 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:02:58,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:02:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:02:58,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:02:58,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:02:58,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-11 15:02:58,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:02:58,320 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:02:58,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:02:58,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:02:58,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:02:58,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:02:58,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:02:58 BasicIcfg [2020-10-11 15:02:58,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:02:58,327 INFO L168 Benchmark]: Toolchain (without parser) took 4066.16 ms. Allocated memory was 246.4 MB in the beginning and 368.1 MB in the end (delta: 121.6 MB). Free memory was 202.3 MB in the beginning and 304.8 MB in the end (delta: -102.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:58,328 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 246.4 MB. Free memory was 224.5 MB in the beginning and 223.6 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-11 15:02:58,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.13 ms. Allocated memory was 246.4 MB in the beginning and 302.0 MB in the end (delta: 55.6 MB). Free memory was 201.5 MB in the beginning and 257.9 MB in the end (delta: -56.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:58,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 302.0 MB. Free memory was 257.9 MB in the beginning and 255.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:58,331 INFO L168 Benchmark]: Boogie Preprocessor took 27.12 ms. Allocated memory is still 302.0 MB. Free memory was 255.4 MB in the beginning and 253.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:58,332 INFO L168 Benchmark]: RCFGBuilder took 424.96 ms. Allocated memory is still 302.0 MB. Free memory was 253.7 MB in the beginning and 230.9 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:02:58,332 INFO L168 Benchmark]: TraceAbstraction took 2820.60 ms. Allocated memory was 302.0 MB in the beginning and 368.1 MB in the end (delta: 66.1 MB). Free memory was 230.9 MB in the beginning and 304.8 MB in the end (delta: -73.9 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:02:58,337 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 246.4 MB. Free memory was 224.5 MB in the beginning and 223.6 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 738.13 ms. Allocated memory was 246.4 MB in the beginning and 302.0 MB in the end (delta: 55.6 MB). Free memory was 201.5 MB in the beginning and 257.9 MB in the end (delta: -56.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 302.0 MB. Free memory was 257.9 MB in the beginning and 255.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.12 ms. Allocated memory is still 302.0 MB. Free memory was 255.4 MB in the beginning and 253.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 424.96 ms. Allocated memory is still 302.0 MB. Free memory was 253.7 MB in the beginning and 230.9 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2820.60 ms. Allocated memory was 302.0 MB in the beginning and 368.1 MB in the end (delta: 66.1 MB). Free memory was 230.9 MB in the beginning and 304.8 MB in the end (delta: -73.9 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 879 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 81 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2579 MoverChecksTotal - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 110 SDtfs, 125 SDslu, 139 SDs, 0 SdLazy, 34 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...