/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:29:47,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:29:47,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:29:47,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:29:47,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:29:47,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:29:47,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:29:47,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:29:47,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:29:47,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:29:47,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:29:47,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:29:47,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:29:47,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:29:47,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:29:47,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:29:47,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:29:47,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:29:47,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:29:47,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:29:47,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:29:47,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:29:47,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:29:47,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:29:47,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 18:29:47,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 18:29:47,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 18:29:47,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 18:29:47,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 18:29:47,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 18:29:47,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:29:47,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:29:47,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:29:47,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:29:47,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:29:47,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:29:47,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:29:47,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:29:47,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:29:47,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:29:47,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:29:47,647 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 [2020-10-15 18:29:47,668 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:29:47,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:29:47,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:29:47,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:29:47,670 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:29:47,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:29:47,670 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:29:47,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:29:47,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:29:47,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:29:47,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:29:47,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:29:47,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:29:47,671 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:29:47,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:29:47,672 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:29:47,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:29:47,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:29:47,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:29:47,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:29:47,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:29:47,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:29:47,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:29:47,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:29:47,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:29:47,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:29:47,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:29:47,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:29:47,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:29:47,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:29:47,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:29:47,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:29:47,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:29:47,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:29:47,975 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:29:47,976 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2020-10-15 18:29:48,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c2df637/7438b743651e4cf7aeb39ae654cb109a/FLAGec9fb415a [2020-10-15 18:29:48,610 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:29:48,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2020-10-15 18:29:48,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c2df637/7438b743651e4cf7aeb39ae654cb109a/FLAGec9fb415a [2020-10-15 18:29:48,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c2df637/7438b743651e4cf7aeb39ae654cb109a [2020-10-15 18:29:48,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:29:48,951 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:29:48,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:29:48,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:29:48,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:29:48,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:29:48" (1/1) ... [2020-10-15 18:29:48,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e82a28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:48, skipping insertion in model container [2020-10-15 18:29:48,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:29:48" (1/1) ... [2020-10-15 18:29:48,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:29:49,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:29:49,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:29:49,513 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:29:49,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:29:49,691 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:29:49,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49 WrapperNode [2020-10-15 18:29:49,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:29:49,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:29:49,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:29:49,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:29:49,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (1/1) ... [2020-10-15 18:29:49,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (1/1) ... [2020-10-15 18:29:49,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:29:49,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:29:49,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:29:49,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:29:49,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (1/1) ... [2020-10-15 18:29:49,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (1/1) ... [2020-10-15 18:29:49,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (1/1) ... [2020-10-15 18:29:49,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (1/1) ... [2020-10-15 18:29:49,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (1/1) ... [2020-10-15 18:29:49,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (1/1) ... [2020-10-15 18:29:49,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (1/1) ... [2020-10-15 18:29:49,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:29:49,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:29:49,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:29:49,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:29:49,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (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 [2020-10-15 18:29:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:29:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:29:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:29:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:29:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:29:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:29:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:29:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:29:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:29:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:29:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:29:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:29:49,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:29:49,844 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:29:50,183 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:29:50,183 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:29:50,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:29:50 BoogieIcfgContainer [2020-10-15 18:29:50,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:29:50,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:29:50,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:29:50,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:29:50,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:29:48" (1/3) ... [2020-10-15 18:29:50,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b872d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:29:50, skipping insertion in model container [2020-10-15 18:29:50,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:49" (2/3) ... [2020-10-15 18:29:50,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b872d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:29:50, skipping insertion in model container [2020-10-15 18:29:50,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:29:50" (3/3) ... [2020-10-15 18:29:50,196 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2020-10-15 18:29:50,208 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:29:50,208 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:29:50,215 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:29:50,216 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:29:50,247 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,247 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,247 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,248 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,249 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,249 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,250 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,250 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,250 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,250 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,251 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,251 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,251 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,252 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,252 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,252 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,257 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,257 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,267 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,268 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,269 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,271 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,272 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:50,288 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:29:50,309 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:29:50,310 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:29:50,310 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:29:50,310 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:29:50,310 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:29:50,310 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:29:50,310 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:29:50,311 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:29:50,323 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:29:50,326 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:29:50,329 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:29:50,331 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-15 18:29:50,374 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-15 18:29:50,375 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:29:50,380 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:29:50,383 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:29:52,088 INFO L132 LiptonReduction]: Checked pairs total: 2581 [2020-10-15 18:29:52,088 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-15 18:29:52,095 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 18:29:52,139 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 18:29:52,142 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 18:29:52,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:29:52,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:52,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:52,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:52,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:52,184 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-10-15 18:29:52,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:52,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303344924] [2020-10-15 18:29:52,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:52,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303344924] [2020-10-15 18:29:52,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:52,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:29:52,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580022117] [2020-10-15 18:29:52,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:29:52,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:52,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:29:52,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:52,423 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 18:29:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:52,469 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-15 18:29:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:29:52,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:29:52,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:52,505 INFO L225 Difference]: With dead ends: 282 [2020-10-15 18:29:52,505 INFO L226 Difference]: Without dead ends: 218 [2020-10-15 18:29:52,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:52,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-15 18:29:52,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-15 18:29:52,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-15 18:29:52,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-15 18:29:52,581 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-15 18:29:52,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:52,582 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-15 18:29:52,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:29:52,582 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-15 18:29:52,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:29:52,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:52,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:52,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:29:52,584 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:52,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:52,586 INFO L82 PathProgramCache]: Analyzing trace with hash 971209488, now seen corresponding path program 1 times [2020-10-15 18:29:52,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:52,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670887232] [2020-10-15 18:29:52,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:52,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:52,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670887232] [2020-10-15 18:29:52,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:52,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:29:52,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513473989] [2020-10-15 18:29:52,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:29:52,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:52,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:29:52,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:29:52,700 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-15 18:29:52,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:52,742 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-15 18:29:52,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:29:52,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 18:29:52,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:52,745 INFO L225 Difference]: With dead ends: 242 [2020-10-15 18:29:52,745 INFO L226 Difference]: Without dead ends: 146 [2020-10-15 18:29:52,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:29:52,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-15 18:29:52,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-15 18:29:52,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-15 18:29:52,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-15 18:29:52,760 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-15 18:29:52,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:52,760 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-15 18:29:52,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:29:52,760 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-15 18:29:52,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:29:52,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:52,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:52,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:29:52,762 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:52,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:52,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-10-15 18:29:52,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:52,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097725299] [2020-10-15 18:29:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:52,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097725299] [2020-10-15 18:29:52,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:52,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:29:52,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630578321] [2020-10-15 18:29:52,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:29:52,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:52,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:29:52,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:52,865 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-15 18:29:52,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:52,876 INFO L93 Difference]: Finished difference Result 138 states and 336 transitions. [2020-10-15 18:29:52,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:29:52,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 18:29:52,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:52,879 INFO L225 Difference]: With dead ends: 138 [2020-10-15 18:29:52,879 INFO L226 Difference]: Without dead ends: 138 [2020-10-15 18:29:52,879 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 [2020-10-15 18:29:52,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-15 18:29:52,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-15 18:29:52,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-15 18:29:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 336 transitions. [2020-10-15 18:29:52,891 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 336 transitions. Word has length 11 [2020-10-15 18:29:52,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:52,891 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 336 transitions. [2020-10-15 18:29:52,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:29:52,891 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 336 transitions. [2020-10-15 18:29:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:29:52,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:52,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:52,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:29:52,893 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:52,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:52,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1787779324, now seen corresponding path program 1 times [2020-10-15 18:29:52,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:52,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977502272] [2020-10-15 18:29:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:52,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977502272] [2020-10-15 18:29:52,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:52,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:29:52,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901155305] [2020-10-15 18:29:52,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:29:52,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:52,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:29:52,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:52,933 INFO L87 Difference]: Start difference. First operand 138 states and 336 transitions. Second operand 3 states. [2020-10-15 18:29:52,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:52,938 INFO L93 Difference]: Finished difference Result 134 states and 324 transitions. [2020-10-15 18:29:52,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:29:52,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 18:29:52,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:52,940 INFO L225 Difference]: With dead ends: 134 [2020-10-15 18:29:52,941 INFO L226 Difference]: Without dead ends: 134 [2020-10-15 18:29:52,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:52,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-15 18:29:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-10-15 18:29:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-15 18:29:52,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 324 transitions. [2020-10-15 18:29:52,950 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 324 transitions. Word has length 12 [2020-10-15 18:29:52,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:52,951 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 324 transitions. [2020-10-15 18:29:52,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:29:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 324 transitions. [2020-10-15 18:29:52,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:29:52,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:52,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:52,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:29:52,953 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:52,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:52,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1034166645, now seen corresponding path program 1 times [2020-10-15 18:29:52,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:52,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773535972] [2020-10-15 18:29:52,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:52,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:52,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773535972] [2020-10-15 18:29:52,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:52,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:29:52,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23270458] [2020-10-15 18:29:52,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:29:52,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:52,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:29:52,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:29:52,995 INFO L87 Difference]: Start difference. First operand 134 states and 324 transitions. Second operand 4 states. [2020-10-15 18:29:53,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:53,017 INFO L93 Difference]: Finished difference Result 194 states and 466 transitions. [2020-10-15 18:29:53,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:29:53,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:29:53,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:53,019 INFO L225 Difference]: With dead ends: 194 [2020-10-15 18:29:53,019 INFO L226 Difference]: Without dead ends: 104 [2020-10-15 18:29:53,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:29:53,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-15 18:29:53,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-15 18:29:53,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-15 18:29:53,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 246 transitions. [2020-10-15 18:29:53,026 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 246 transitions. Word has length 13 [2020-10-15 18:29:53,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:53,027 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 246 transitions. [2020-10-15 18:29:53,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:29:53,027 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 246 transitions. [2020-10-15 18:29:53,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:29:53,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:53,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:53,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:29:53,028 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:53,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:53,029 INFO L82 PathProgramCache]: Analyzing trace with hash -589742481, now seen corresponding path program 2 times [2020-10-15 18:29:53,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:53,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323271496] [2020-10-15 18:29:53,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:53,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323271496] [2020-10-15 18:29:53,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:53,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:29:53,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497069110] [2020-10-15 18:29:53,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:29:53,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:53,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:29:53,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:29:53,067 INFO L87 Difference]: Start difference. First operand 104 states and 246 transitions. Second operand 4 states. [2020-10-15 18:29:53,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:53,113 INFO L93 Difference]: Finished difference Result 128 states and 298 transitions. [2020-10-15 18:29:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:29:53,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:29:53,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:53,115 INFO L225 Difference]: With dead ends: 128 [2020-10-15 18:29:53,115 INFO L226 Difference]: Without dead ends: 68 [2020-10-15 18:29:53,115 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 [2020-10-15 18:29:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-15 18:29:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-15 18:29:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-15 18:29:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-10-15 18:29:53,120 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 13 [2020-10-15 18:29:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:53,120 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-10-15 18:29:53,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:29:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-10-15 18:29:53,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:29:53,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:53,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:53,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:29:53,122 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:53,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:53,122 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 3 times [2020-10-15 18:29:53,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:53,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995487525] [2020-10-15 18:29:53,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:53,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995487525] [2020-10-15 18:29:53,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:53,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:29:53,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850368872] [2020-10-15 18:29:53,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:29:53,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:53,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:29:53,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:29:53,185 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-10-15 18:29:53,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:53,223 INFO L93 Difference]: Finished difference Result 81 states and 157 transitions. [2020-10-15 18:29:53,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:29:53,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:29:53,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:53,225 INFO L225 Difference]: With dead ends: 81 [2020-10-15 18:29:53,225 INFO L226 Difference]: Without dead ends: 59 [2020-10-15 18:29:53,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:29:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-15 18:29:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-15 18:29:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-15 18:29:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 114 transitions. [2020-10-15 18:29:53,229 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 114 transitions. Word has length 13 [2020-10-15 18:29:53,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:53,230 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 114 transitions. [2020-10-15 18:29:53,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:29:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-10-15 18:29:53,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:29:53,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:53,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:53,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:29:53,231 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:53,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:53,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1574125730, now seen corresponding path program 1 times [2020-10-15 18:29:53,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:53,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678627947] [2020-10-15 18:29:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:53,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678627947] [2020-10-15 18:29:53,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:53,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:29:53,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755945238] [2020-10-15 18:29:53,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:29:53,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:53,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:29:53,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:29:53,290 INFO L87 Difference]: Start difference. First operand 59 states and 114 transitions. Second operand 5 states. [2020-10-15 18:29:53,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:53,339 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2020-10-15 18:29:53,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:29:53,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 18:29:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:53,340 INFO L225 Difference]: With dead ends: 60 [2020-10-15 18:29:53,340 INFO L226 Difference]: Without dead ends: 45 [2020-10-15 18:29:53,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:29:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-15 18:29:53,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-15 18:29:53,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-15 18:29:53,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-10-15 18:29:53,344 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 14 [2020-10-15 18:29:53,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:53,344 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-10-15 18:29:53,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:29:53,345 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-10-15 18:29:53,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:29:53,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:53,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:53,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:29:53,346 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:53,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:53,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-10-15 18:29:53,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:53,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961162476] [2020-10-15 18:29:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:53,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961162476] [2020-10-15 18:29:53,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:53,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:29:53,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546969100] [2020-10-15 18:29:53,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:29:53,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:53,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:29:53,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:29:53,402 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 6 states. [2020-10-15 18:29:53,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:53,449 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-10-15 18:29:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:29:53,450 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 18:29:53,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:53,451 INFO L225 Difference]: With dead ends: 42 [2020-10-15 18:29:53,451 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 18:29:53,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:29:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 18:29:53,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-15 18:29:53,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 18:29:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-15 18:29:53,453 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-10-15 18:29:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:53,454 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-15 18:29:53,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:29:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-15 18:29:53,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:29:53,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:53,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:53,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:29:53,455 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:53,455 INFO L82 PathProgramCache]: Analyzing trace with hash 392863110, now seen corresponding path program 1 times [2020-10-15 18:29:53,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:53,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156070779] [2020-10-15 18:29:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:53,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:29:53,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156070779] [2020-10-15 18:29:53,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:53,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:29:53,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356093200] [2020-10-15 18:29:53,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:29:53,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:53,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:29:53,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:53,484 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-10-15 18:29:53,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:53,488 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-15 18:29:53,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:29:53,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-15 18:29:53,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:53,489 INFO L225 Difference]: With dead ends: 35 [2020-10-15 18:29:53,489 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:29:53,490 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 [2020-10-15 18:29:53,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:29:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:29:53,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:29:53,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:29:53,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 18:29:53,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:53,491 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:29:53,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:29:53,491 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:29:53,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:29:53,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:29:53,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:29:53 BasicIcfg [2020-10-15 18:29:53,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:29:53,498 INFO L168 Benchmark]: Toolchain (without parser) took 4546.26 ms. Allocated memory was 253.2 MB in the beginning and 371.7 MB in the end (delta: 118.5 MB). Free memory was 209.2 MB in the beginning and 234.0 MB in the end (delta: -24.9 MB). Peak memory consumption was 93.6 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:53,498 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 253.2 MB. Free memory was 231.3 MB in the beginning and 230.4 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. [2020-10-15 18:29:53,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.30 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 209.2 MB in the beginning and 273.4 MB in the end (delta: -64.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:53,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.36 ms. Allocated memory is still 319.3 MB. Free memory was 273.4 MB in the beginning and 271.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:53,501 INFO L168 Benchmark]: Boogie Preprocessor took 26.58 ms. Allocated memory is still 319.3 MB. Free memory was 271.7 MB in the beginning and 270.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:53,502 INFO L168 Benchmark]: RCFGBuilder took 419.84 ms. Allocated memory is still 319.3 MB. Free memory was 270.0 MB in the beginning and 247.2 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:53,502 INFO L168 Benchmark]: TraceAbstraction took 3306.27 ms. Allocated memory was 319.3 MB in the beginning and 371.7 MB in the end (delta: 52.4 MB). Free memory was 247.2 MB in the beginning and 234.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 65.6 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:53,507 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 253.2 MB. Free memory was 231.3 MB in the beginning and 230.4 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 741.30 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 209.2 MB in the beginning and 273.4 MB in the end (delta: -64.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.36 ms. Allocated memory is still 319.3 MB. Free memory was 273.4 MB in the beginning and 271.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.58 ms. Allocated memory is still 319.3 MB. Free memory was 271.7 MB in the beginning and 270.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 419.84 ms. Allocated memory is still 319.3 MB. Free memory was 270.0 MB in the beginning and 247.2 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3306.27 ms. Allocated memory was 319.3 MB in the beginning and 371.7 MB in the end (delta: 52.4 MB). Free memory was 247.2 MB in the beginning and 234.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 65.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 819 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 60 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2581 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 179 SDtfs, 126 SDslu, 183 SDs, 0 SdLazy, 121 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 4013 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...