/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:25:45,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:25:45,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:25:45,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:25:45,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:25:45,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:25:45,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:25:45,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:25:45,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:25:45,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:25:45,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:25:45,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:25:45,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:25:45,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:25:45,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:25:45,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:25:45,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:25:45,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:25:45,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:25:45,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:25:45,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:25:45,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:25:45,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:25:45,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:25:45,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 06:25:45,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:25:45,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:25:45,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:25:45,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:25:45,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:25:45,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:25:45,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:25:45,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:25:45,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:25:45,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:25:45,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:25:45,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2020-11-12 06:25:45,251 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:25:45,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:25:45,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:25:45,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:25:45,256 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:25:45,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:25:45,257 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:25:45,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:25:45,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:25:45,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:25:45,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:25:45,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:25:45,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:25:45,260 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:25:45,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:25:45,260 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:25:45,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:25:45,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:25:45,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:25:45,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:25:45,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:25:45,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:25:45,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:25:45,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:25:45,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:25:45,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:25:45,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:25:45,263 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:25:45,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:25:45,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:25:45,264 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:25:45,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:25:45,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:25:45,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:25:45,740 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:25:45,740 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:25:45,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-11-12 06:25:45,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/635cdd2e4/557ff00f490941fb88708e6aba88cd76/FLAG611f91df7 [2020-11-12 06:25:46,710 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:25:46,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-11-12 06:25:46,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/635cdd2e4/557ff00f490941fb88708e6aba88cd76/FLAG611f91df7 [2020-11-12 06:25:46,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/635cdd2e4/557ff00f490941fb88708e6aba88cd76 [2020-11-12 06:25:46,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:25:46,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:25:46,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:25:46,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:25:46,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:25:46,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:25:46" (1/1) ... [2020-11-12 06:25:46,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a977fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:46, skipping insertion in model container [2020-11-12 06:25:46,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:25:46" (1/1) ... [2020-11-12 06:25:46,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:25:47,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:25:47,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:25:47,355 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:25:47,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:25:47,537 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:25:47,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47 WrapperNode [2020-11-12 06:25:47,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:25:47,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:25:47,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:25:47,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:25:47,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (1/1) ... [2020-11-12 06:25:47,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (1/1) ... [2020-11-12 06:25:47,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:25:47,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:25:47,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:25:47,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:25:47,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (1/1) ... [2020-11-12 06:25:47,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (1/1) ... [2020-11-12 06:25:47,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (1/1) ... [2020-11-12 06:25:47,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (1/1) ... [2020-11-12 06:25:47,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (1/1) ... [2020-11-12 06:25:47,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (1/1) ... [2020-11-12 06:25:47,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (1/1) ... [2020-11-12 06:25:47,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:25:47,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:25:47,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:25:47,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:25:47,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (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 [2020-11-12 06:25:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:25:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:25:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:25:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:25:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:25:47,779 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:25:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:25:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:25:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:25:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:25:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:25:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:25:47,782 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:25:48,154 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:25:48,155 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:25:48,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:25:48 BoogieIcfgContainer [2020-11-12 06:25:48,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:25:48,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:25:48,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:25:48,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:25:48,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:25:46" (1/3) ... [2020-11-12 06:25:48,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf9451b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:25:48, skipping insertion in model container [2020-11-12 06:25:48,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:25:47" (2/3) ... [2020-11-12 06:25:48,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf9451b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:25:48, skipping insertion in model container [2020-11-12 06:25:48,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:25:48" (3/3) ... [2020-11-12 06:25:48,166 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2020-11-12 06:25:48,183 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:25:48,184 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:25:48,188 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:25:48,189 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:25:48,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,217 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,217 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,218 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,218 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,218 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,218 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,220 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,220 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,221 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,221 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,221 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,221 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,225 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,225 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,232 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,232 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,232 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,233 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:25:48,235 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:25:48,248 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 06:25:48,273 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:25:48,273 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:25:48,273 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:25:48,273 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:25:48,274 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:25:48,274 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:25:48,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:25:48,274 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:25:48,287 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2020-11-12 06:25:48,393 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:48,704 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 308ms [2020-11-12 06:25:48,709 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:48,712 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 1320 states, 1215 states have (on average 1.3111111111111111) internal successors, (1593), 1319 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:48,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 1320 states, 1215 states have (on average 1.3111111111111111) internal successors, (1593), 1319 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:48,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-12 06:25:48,727 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:25:48,728 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:25:48,728 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:25:48,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:25:48,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1850588041, now seen corresponding path program 1 times [2020-11-12 06:25:48,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:25:48,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629731916] [2020-11-12 06:25:48,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:25:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:25:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:25:49,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629731916] [2020-11-12 06:25:49,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:25:49,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:25:49,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616778858] [2020-11-12 06:25:49,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:25:49,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:25:49,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:25:49,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:25:49,144 INFO L87 Difference]: Start difference. First operand has 1320 states, 1215 states have (on average 1.3111111111111111) internal successors, (1593), 1319 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:49,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:25:49,378 INFO L93 Difference]: Finished difference Result 1714 states and 1859 transitions. [2020-11-12 06:25:49,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:25:49,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2020-11-12 06:25:49,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:25:49,399 INFO L225 Difference]: With dead ends: 1714 [2020-11-12 06:25:49,400 INFO L226 Difference]: Without dead ends: 661 [2020-11-12 06:25:49,402 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:25:49,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2020-11-12 06:25:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2020-11-12 06:25:49,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 618 states have (on average 1.250809061488673) internal successors, (773), 660 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 773 transitions. [2020-11-12 06:25:49,496 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 773 transitions. Word has length 36 [2020-11-12 06:25:49,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:25:49,497 INFO L481 AbstractCegarLoop]: Abstraction has 661 states and 773 transitions. [2020-11-12 06:25:49,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 773 transitions. [2020-11-12 06:25:49,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-12 06:25:49,501 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:25:49,501 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:25:49,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:25:49,501 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:25:49,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:25:49,503 INFO L82 PathProgramCache]: Analyzing trace with hash 603828472, now seen corresponding path program 1 times [2020-11-12 06:25:49,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:25:49,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667668815] [2020-11-12 06:25:49,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:25:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:25:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:25:49,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667668815] [2020-11-12 06:25:49,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:25:49,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:25:49,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615610174] [2020-11-12 06:25:49,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:25:49,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:25:49,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:25:49,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:25:49,813 INFO L87 Difference]: Start difference. First operand 661 states and 773 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:49,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:25:49,971 INFO L93 Difference]: Finished difference Result 703 states and 800 transitions. [2020-11-12 06:25:49,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:25:49,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2020-11-12 06:25:49,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:25:49,977 INFO L225 Difference]: With dead ends: 703 [2020-11-12 06:25:49,978 INFO L226 Difference]: Without dead ends: 531 [2020-11-12 06:25:49,979 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:25:49,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-11-12 06:25:50,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2020-11-12 06:25:50,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 498 states have (on average 1.2429718875502007) internal successors, (619), 530 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 619 transitions. [2020-11-12 06:25:50,016 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 619 transitions. Word has length 38 [2020-11-12 06:25:50,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:25:50,017 INFO L481 AbstractCegarLoop]: Abstraction has 531 states and 619 transitions. [2020-11-12 06:25:50,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,018 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 619 transitions. [2020-11-12 06:25:50,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-12 06:25:50,023 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:25:50,023 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:25:50,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:25:50,023 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:25:50,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:25:50,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1564162379, now seen corresponding path program 1 times [2020-11-12 06:25:50,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:25:50,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630398220] [2020-11-12 06:25:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:25:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:25:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:25:50,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630398220] [2020-11-12 06:25:50,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:25:50,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:25:50,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937212431] [2020-11-12 06:25:50,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:25:50,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:25:50,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:25:50,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:25:50,219 INFO L87 Difference]: Start difference. First operand 531 states and 619 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:25:50,342 INFO L93 Difference]: Finished difference Result 845 states and 995 transitions. [2020-11-12 06:25:50,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:25:50,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2020-11-12 06:25:50,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:25:50,345 INFO L225 Difference]: With dead ends: 845 [2020-11-12 06:25:50,346 INFO L226 Difference]: Without dead ends: 535 [2020-11-12 06:25:50,346 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:25:50,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2020-11-12 06:25:50,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 439. [2020-11-12 06:25:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 412 states have (on average 1.2402912621359223) internal successors, (511), 438 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 511 transitions. [2020-11-12 06:25:50,360 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 511 transitions. Word has length 40 [2020-11-12 06:25:50,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:25:50,360 INFO L481 AbstractCegarLoop]: Abstraction has 439 states and 511 transitions. [2020-11-12 06:25:50,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 511 transitions. [2020-11-12 06:25:50,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-12 06:25:50,362 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:25:50,362 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:25:50,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:25:50,362 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:25:50,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:25:50,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1145540231, now seen corresponding path program 1 times [2020-11-12 06:25:50,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:25:50,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193761640] [2020-11-12 06:25:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:25:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:25:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:25:50,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193761640] [2020-11-12 06:25:50,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:25:50,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:25:50,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296411398] [2020-11-12 06:25:50,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:25:50,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:25:50,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:25:50,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:25:50,538 INFO L87 Difference]: Start difference. First operand 439 states and 511 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:25:50,687 INFO L93 Difference]: Finished difference Result 313 states and 361 transitions. [2020-11-12 06:25:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:25:50,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2020-11-12 06:25:50,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:25:50,690 INFO L225 Difference]: With dead ends: 313 [2020-11-12 06:25:50,690 INFO L226 Difference]: Without dead ends: 159 [2020-11-12 06:25:50,690 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:25:50,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-11-12 06:25:50,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-11-12 06:25:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 150 states have (on average 1.2133333333333334) internal successors, (182), 158 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 182 transitions. [2020-11-12 06:25:50,696 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 182 transitions. Word has length 40 [2020-11-12 06:25:50,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:25:50,697 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 182 transitions. [2020-11-12 06:25:50,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,697 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 182 transitions. [2020-11-12 06:25:50,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 06:25:50,698 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:25:50,699 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:25:50,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:25:50,699 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:25:50,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:25:50,700 INFO L82 PathProgramCache]: Analyzing trace with hash -993276731, now seen corresponding path program 1 times [2020-11-12 06:25:50,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:25:50,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385086908] [2020-11-12 06:25:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:25:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:25:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:25:50,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385086908] [2020-11-12 06:25:50,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:25:50,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:25:50,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143207970] [2020-11-12 06:25:50,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:25:50,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:25:50,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:25:50,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:25:50,809 INFO L87 Difference]: Start difference. First operand 159 states and 182 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:25:50,903 INFO L93 Difference]: Finished difference Result 123 states and 146 transitions. [2020-11-12 06:25:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:25:50,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-11-12 06:25:50,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:25:50,904 INFO L225 Difference]: With dead ends: 123 [2020-11-12 06:25:50,904 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:25:50,905 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:25:50,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:25:50,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:25:50,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:25:50,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-11-12 06:25:50,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:25:50,906 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:25:50,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:25:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:25:50,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:25:50,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:25:50,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:25:50 BasicIcfg [2020-11-12 06:25:50,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:25:50,916 INFO L168 Benchmark]: Toolchain (without parser) took 3981.57 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.9 MB in the beginning and 281.9 MB in the end (delta: -5.0 MB). Peak memory consumption was 58.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:25:50,916 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:25:50,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.03 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 246.0 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-12 06:25:50,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.18 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 244.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:25:50,919 INFO L168 Benchmark]: Boogie Preprocessor took 57.41 ms. Allocated memory is still 302.0 MB. Free memory was 244.0 MB in the beginning and 242.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:25:50,920 INFO L168 Benchmark]: RCFGBuilder took 472.08 ms. Allocated memory is still 302.0 MB. Free memory was 242.6 MB in the beginning and 266.5 MB in the end (delta: -23.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2020-11-12 06:25:50,921 INFO L168 Benchmark]: TraceAbstraction took 2754.37 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 266.5 MB in the beginning and 281.9 MB in the end (delta: -15.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.0 GB. [2020-11-12 06:25:50,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 595.03 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 246.0 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 86.18 ms. Allocated memory is still 302.0 MB. Free memory was 246.0 MB in the beginning and 244.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.41 ms. Allocated memory is still 302.0 MB. Free memory was 244.0 MB in the beginning and 242.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 472.08 ms. Allocated memory is still 302.0 MB. Free memory was 242.6 MB in the beginning and 266.5 MB in the end (delta: -23.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2754.37 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 266.5 MB in the beginning and 281.9 MB in the end (delta: -15.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 3 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 257 SDtfs, 273 SDslu, 944 SDs, 0 SdLazy, 117 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1320occurred 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, 96 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 18861 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...