/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/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:01:29,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:01:29,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:01:29,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:01:29,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:01:29,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:01:29,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:01:29,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:01:29,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:01:29,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:01:29,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:01:29,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:01:29,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:01:29,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:01:29,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:01:29,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:01:29,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:01:29,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:01:29,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:01:29,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:01:29,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:01:29,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:01:29,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:01:29,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:01:29,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:01:29,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:01:29,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:01:29,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:01:29,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:01:29,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:01:29,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:01:29,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:01:29,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:01:29,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:01:29,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:01:29,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:01:29,958 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 [2020-10-21 22:01:29,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:01:29,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:01:29,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:01:29,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:01:29,984 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:01:29,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:01:29,984 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:01:29,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:01:29,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:01:29,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:01:29,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:01:29,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:01:29,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:01:29,986 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:01:29,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:01:29,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:01:29,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:01:29,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:01:29,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:01:29,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:01:29,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:01:29,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:01:29,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:01:29,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:01:29,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:01:29,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:01:29,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:01:29,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:01:29,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:01:29,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:01:30,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:01:30,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:01:30,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:01:30,339 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:01:30,340 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:01:30,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2020-10-21 22:01:30,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ef897cea/22dd8110f7fc4c0786ee0751849b921b/FLAGb3b2b7f5c [2020-10-21 22:01:30,978 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:01:30,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2020-10-21 22:01:30,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ef897cea/22dd8110f7fc4c0786ee0751849b921b/FLAGb3b2b7f5c [2020-10-21 22:01:31,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ef897cea/22dd8110f7fc4c0786ee0751849b921b [2020-10-21 22:01:31,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:01:31,245 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:01:31,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:01:31,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:01:31,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:01:31,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1c4f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31, skipping insertion in model container [2020-10-21 22:01:31,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:01:31,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:01:31,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:01:31,772 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:01:31,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:01:31,930 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:01:31,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31 WrapperNode [2020-10-21 22:01:31,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:01:31,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:01:31,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:01:31,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:01:31,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:32,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:01:32,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:01:32,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:01:32,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:01:32,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:32,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:32,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:32,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:32,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:32,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:32,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:32,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:01:32,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:01:32,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:01:32,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:01:32,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (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 [2020-10-21 22:01:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:01:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:01:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:01:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:01:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:01:32,127 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:01:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:01:32,127 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:01:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 22:01:32,127 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 22:01:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:01:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:01:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:01:32,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:01:32,130 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:01:32,546 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:01:32,546 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:01:32,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:01:32 BoogieIcfgContainer [2020-10-21 22:01:32,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:01:32,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:01:32,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:01:32,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:01:32,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:01:31" (1/3) ... [2020-10-21 22:01:32,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1bfe9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:01:32, skipping insertion in model container [2020-10-21 22:01:32,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (2/3) ... [2020-10-21 22:01:32,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1bfe9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:01:32, skipping insertion in model container [2020-10-21 22:01:32,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:01:32" (3/3) ... [2020-10-21 22:01:32,558 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2020-10-21 22:01:32,571 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:01:32,571 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:01:32,580 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:01:32,581 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:01:32,614 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,614 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,615 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,617 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,619 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,619 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,621 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,621 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,621 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,622 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,626 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,633 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,634 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,636 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,637 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,639 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:01:32,654 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:01:32,677 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:01:32,677 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:01:32,677 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:01:32,677 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:01:32,677 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:01:32,678 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:01:32,678 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:01:32,678 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:01:32,693 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:01:32,696 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 22:01:32,699 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 22:01:32,701 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-21 22:01:32,751 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-21 22:01:32,752 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:01:32,757 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 22:01:32,760 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 22:01:34,533 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 22:01:34,642 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-21 22:01:34,682 INFO L131 LiptonReduction]: Checked pairs total: 2822 [2020-10-21 22:01:34,682 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-10-21 22:01:34,689 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 22:01:34,719 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 22:01:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 22:01:34,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:01:34,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:34,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:34,731 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:34,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:34,737 INFO L82 PathProgramCache]: Analyzing trace with hash 406549293, now seen corresponding path program 1 times [2020-10-21 22:01:34,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:34,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475740581] [2020-10-21 22:01:34,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:34,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475740581] [2020-10-21 22:01:34,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:34,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:01:34,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235522469] [2020-10-21 22:01:34,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:01:34,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:34,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:01:34,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:01:34,948 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 22:01:34,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:34,982 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 22:01:34,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:01:34,983 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 22:01:34,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,002 INFO L225 Difference]: With dead ends: 362 [2020-10-21 22:01:35,002 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 22:01:35,003 INFO L677 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 [2020-10-21 22:01:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 22:01:35,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 22:01:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 22:01:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 22:01:35,103 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 22:01:35,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,104 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 22:01:35,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:01:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 22:01:35,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 22:01:35,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:35,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:35,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:01:35,107 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:35,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:35,108 INFO L82 PathProgramCache]: Analyzing trace with hash -281880887, now seen corresponding path program 1 times [2020-10-21 22:01:35,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:35,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706014268] [2020-10-21 22:01:35,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:35,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706014268] [2020-10-21 22:01:35,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:35,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:01:35,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932410986] [2020-10-21 22:01:35,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:01:35,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:35,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:01:35,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:01:35,222 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-21 22:01:35,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,242 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-21 22:01:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:01:35,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 22:01:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,245 INFO L225 Difference]: With dead ends: 217 [2020-10-21 22:01:35,245 INFO L226 Difference]: Without dead ends: 217 [2020-10-21 22:01:35,246 INFO L677 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 [2020-10-21 22:01:35,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-21 22:01:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-21 22:01:35,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-21 22:01:35,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-21 22:01:35,265 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-21 22:01:35,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,266 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-21 22:01:35,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:01:35,266 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-21 22:01:35,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:01:35,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:35,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:35,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:01:35,268 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:35,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:35,269 INFO L82 PathProgramCache]: Analyzing trace with hash -389577111, now seen corresponding path program 1 times [2020-10-21 22:01:35,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:35,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389126764] [2020-10-21 22:01:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:35,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389126764] [2020-10-21 22:01:35,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:35,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:01:35,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389648290] [2020-10-21 22:01:35,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:01:35,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:35,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:01:35,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:01:35,339 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-21 22:01:35,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,374 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-21 22:01:35,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:01:35,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 22:01:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,377 INFO L225 Difference]: With dead ends: 136 [2020-10-21 22:01:35,377 INFO L226 Difference]: Without dead ends: 136 [2020-10-21 22:01:35,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:01:35,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-21 22:01:35,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-21 22:01:35,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-21 22:01:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-21 22:01:35,392 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-21 22:01:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,393 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-21 22:01:35,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:01:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-21 22:01:35,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:01:35,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:35,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:35,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:01:35,395 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:35,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:35,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1823296511, now seen corresponding path program 1 times [2020-10-21 22:01:35,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:35,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214215963] [2020-10-21 22:01:35,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:35,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214215963] [2020-10-21 22:01:35,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:35,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:01:35,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575157847] [2020-10-21 22:01:35,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:01:35,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:35,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:01:35,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:35,462 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-21 22:01:35,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,489 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-21 22:01:35,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:01:35,490 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 22:01:35,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,491 INFO L225 Difference]: With dead ends: 109 [2020-10-21 22:01:35,491 INFO L226 Difference]: Without dead ends: 109 [2020-10-21 22:01:35,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-21 22:01:35,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-21 22:01:35,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 22:01:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-21 22:01:35,498 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-21 22:01:35,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,498 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-21 22:01:35,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:01:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-21 22:01:35,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:01:35,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:35,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:35,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:01:35,501 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:35,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:35,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1915158341, now seen corresponding path program 1 times [2020-10-21 22:01:35,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:35,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861338951] [2020-10-21 22:01:35,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:35,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861338951] [2020-10-21 22:01:35,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:35,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:01:35,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060711468] [2020-10-21 22:01:35,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:01:35,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:35,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:01:35,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:01:35,605 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-21 22:01:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,630 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-21 22:01:35,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:01:35,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 22:01:35,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,633 INFO L225 Difference]: With dead ends: 135 [2020-10-21 22:01:35,633 INFO L226 Difference]: Without dead ends: 55 [2020-10-21 22:01:35,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:35,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-21 22:01:35,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-21 22:01:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-21 22:01:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-21 22:01:35,637 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-21 22:01:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,638 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-21 22:01:35,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:01:35,638 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-21 22:01:35,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:01:35,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:35,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:35,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:01:35,639 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:35,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:35,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1566003365, now seen corresponding path program 2 times [2020-10-21 22:01:35,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:35,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748835160] [2020-10-21 22:01:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:35,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748835160] [2020-10-21 22:01:35,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:35,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:01:35,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343387551] [2020-10-21 22:01:35,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:01:35,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:35,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:01:35,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:35,705 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-21 22:01:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,742 INFO L93 Difference]: Finished difference Result 69 states and 121 transitions. [2020-10-21 22:01:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:01:35,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 22:01:35,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,743 INFO L225 Difference]: With dead ends: 69 [2020-10-21 22:01:35,743 INFO L226 Difference]: Without dead ends: 31 [2020-10-21 22:01:35,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:01:35,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-21 22:01:35,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-21 22:01:35,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-21 22:01:35,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-10-21 22:01:35,746 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 18 [2020-10-21 22:01:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,746 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-10-21 22:01:35,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:01:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-10-21 22:01:35,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:01:35,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:35,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:35,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:01:35,748 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:35,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:35,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1541967813, now seen corresponding path program 3 times [2020-10-21 22:01:35,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:35,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35913748] [2020-10-21 22:01:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:35,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:35,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35913748] [2020-10-21 22:01:35,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:35,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:01:35,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757072880] [2020-10-21 22:01:35,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:01:35,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:35,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:01:35,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:35,810 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 5 states. [2020-10-21 22:01:35,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,833 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2020-10-21 22:01:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:01:35,833 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 22:01:35,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,833 INFO L225 Difference]: With dead ends: 30 [2020-10-21 22:01:35,834 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:01:35,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:01:35,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:01:35,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:01:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:01:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:01:35,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 22:01:35,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,835 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:01:35,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:01:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:01:35,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:01:35,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:01:35,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:01:35 BasicIcfg [2020-10-21 22:01:35,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:01:35,842 INFO L168 Benchmark]: Toolchain (without parser) took 4602.96 ms. Allocated memory was 140.5 MB in the beginning and 245.9 MB in the end (delta: 105.4 MB). Free memory was 102.3 MB in the beginning and 137.0 MB in the end (delta: -34.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,843 INFO L168 Benchmark]: CDTParser took 2.80 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.38 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 157.4 MB in the end (delta: -55.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.70 ms. Allocated memory is still 203.4 MB. Free memory was 157.4 MB in the beginning and 155.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,845 INFO L168 Benchmark]: Boogie Preprocessor took 27.72 ms. Allocated memory is still 203.4 MB. Free memory was 155.4 MB in the beginning and 153.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,846 INFO L168 Benchmark]: RCFGBuilder took 502.02 ms. Allocated memory is still 203.4 MB. Free memory was 153.5 MB in the beginning and 129.7 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,847 INFO L168 Benchmark]: TraceAbstraction took 3289.05 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 128.7 MB in the beginning and 137.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.80 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.38 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 157.4 MB in the end (delta: -55.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 85.70 ms. Allocated memory is still 203.4 MB. Free memory was 157.4 MB in the beginning and 155.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.72 ms. Allocated memory is still 203.4 MB. Free memory was 155.4 MB in the beginning and 153.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 502.02 ms. Allocated memory is still 203.4 MB. Free memory was 153.5 MB in the beginning and 129.7 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3289.05 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 128.7 MB in the beginning and 137.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1022 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 86 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2822 MoverChecksTotal - PositiveResult [Line: 17]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 129 SDtfs, 85 SDslu, 171 SDs, 0 SdLazy, 55 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3355 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...