/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:22:46,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:22:46,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:22:46,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:22:46,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:22:46,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:22:46,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:22:46,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:22:46,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:22:46,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:22:46,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:22:46,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:22:46,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:22:46,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:22:46,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:22:46,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:22:46,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:22:46,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:22:46,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:22:46,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:22:46,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:22:46,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:22:46,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:22:46,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:22:46,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:22:46,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:22:46,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:22:46,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:22:46,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:22:46,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:22:46,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:22:46,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:22:46,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:22:46,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:22:46,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:22:46,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:22:46,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:22:46,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:22:46,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:22:46,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:22:46,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:22:46,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:22:46,633 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:22:46,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:22:46,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:22:46,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:22:46,636 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:22:46,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:22:46,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:22:46,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:22:46,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:22:46,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:22:46,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:22:46,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:22:46,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:22:46,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:22:46,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:22:46,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:22:46,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:22:46,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:22:46,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:22:46,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:22:46,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:22:46,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:22:46,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:22:46,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:22:46,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:22:46,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:22:46,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:22:46,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:22:46,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:22:46,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:22:46,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:22:46,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:22:46,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:22:46,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:22:46,990 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:22:46,990 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-10-16 11:22:47,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fa4a85ea/1c96a940e71a44e498b0a2c3d84289fa/FLAGbecbc083d [2020-10-16 11:22:47,632 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:22:47,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-10-16 11:22:47,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fa4a85ea/1c96a940e71a44e498b0a2c3d84289fa/FLAGbecbc083d [2020-10-16 11:22:47,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fa4a85ea/1c96a940e71a44e498b0a2c3d84289fa [2020-10-16 11:22:47,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:22:47,948 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:22:47,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:47,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:22:47,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:22:47,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:47" (1/1) ... [2020-10-16 11:22:47,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c5c95d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:47, skipping insertion in model container [2020-10-16 11:22:47,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:47" (1/1) ... [2020-10-16 11:22:47,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:22:48,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:22:48,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:48,492 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:22:48,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:48,612 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:22:48,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48 WrapperNode [2020-10-16 11:22:48,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:48,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:48,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:22:48,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:22:48,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... [2020-10-16 11:22:48,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... [2020-10-16 11:22:48,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:48,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:22:48,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:22:48,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:22:48,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... [2020-10-16 11:22:48,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... [2020-10-16 11:22:48,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... [2020-10-16 11:22:48,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... [2020-10-16 11:22:48,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... [2020-10-16 11:22:48,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... [2020-10-16 11:22:48,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... [2020-10-16 11:22:48,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:22:48,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:22:48,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:22:48,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:22:48,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:22:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:22:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:22:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:22:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:22:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:22:48,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:22:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:22:48,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:22:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:22:48,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:22:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:22:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:22:48,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:22:48,765 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:22:49,166 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:22:49,166 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:22:49,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:49 BoogieIcfgContainer [2020-10-16 11:22:49,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:22:49,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:22:49,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:22:49,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:22:49,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:22:47" (1/3) ... [2020-10-16 11:22:49,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0c82f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:49, skipping insertion in model container [2020-10-16 11:22:49,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:48" (2/3) ... [2020-10-16 11:22:49,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0c82f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:49, skipping insertion in model container [2020-10-16 11:22:49,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:49" (3/3) ... [2020-10-16 11:22:49,184 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i [2020-10-16 11:22:49,197 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:22:49,197 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:22:49,206 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:22:49,207 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:22:49,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,251 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,255 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,255 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,255 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,257 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,258 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,258 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,265 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,281 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,282 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,282 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,282 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,288 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:49,290 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:22:49,305 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:22:49,329 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:22:49,329 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:22:49,329 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:22:49,329 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:22:49,330 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:22:49,330 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:22:49,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:22:49,330 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:22:49,343 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:22:49,346 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 11:22:49,348 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 11:22:49,350 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-16 11:22:49,396 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-16 11:22:49,397 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:22:49,402 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 11:22:49,405 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 11:22:50,672 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-16 11:22:50,783 INFO L132 LiptonReduction]: Checked pairs total: 2447 [2020-10-16 11:22:50,783 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 11:22:50,790 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 11:22:50,821 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 11:22:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 11:22:50,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:22:50,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:50,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:50,834 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:50,841 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-10-16 11:22:50,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:50,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251616634] [2020-10-16 11:22:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:51,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251616634] [2020-10-16 11:22:51,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:51,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:51,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721111271] [2020-10-16 11:22:51,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 11:22:51,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:51,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 11:22:51,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:22:51,059 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 11:22:51,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:51,095 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 11:22:51,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 11:22:51,097 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 11:22:51,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:51,116 INFO L225 Difference]: With dead ends: 362 [2020-10-16 11:22:51,116 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 11:22:51,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:22:51,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 11:22:51,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 11:22:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 11:22:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 11:22:51,240 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 11:22:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:51,244 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 11:22:51,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 11:22:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 11:22:51,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:22:51,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:51,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:51,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:22:51,249 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:51,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:51,250 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-10-16 11:22:51,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:51,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608058814] [2020-10-16 11:22:51,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:51,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608058814] [2020-10-16 11:22:51,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:51,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:51,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787558230] [2020-10-16 11:22:51,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:22:51,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:51,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:22:51,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:51,364 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-16 11:22:51,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:51,397 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-16 11:22:51,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:22:51,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:22:51,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:51,402 INFO L225 Difference]: With dead ends: 217 [2020-10-16 11:22:51,404 INFO L226 Difference]: Without dead ends: 217 [2020-10-16 11:22:51,405 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 [2020-10-16 11:22:51,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-16 11:22:51,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-16 11:22:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-16 11:22:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-16 11:22:51,436 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-16 11:22:51,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:51,436 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-16 11:22:51,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:22:51,437 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-16 11:22:51,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:22:51,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:51,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:51,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:22:51,443 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:51,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:51,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-10-16 11:22:51,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:51,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557184795] [2020-10-16 11:22:51,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:51,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557184795] [2020-10-16 11:22:51,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:51,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:51,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453857577] [2020-10-16 11:22:51,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:51,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:51,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:51,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:51,523 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-16 11:22:51,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:51,547 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-16 11:22:51,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:22:51,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:22:51,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:51,549 INFO L225 Difference]: With dead ends: 136 [2020-10-16 11:22:51,549 INFO L226 Difference]: Without dead ends: 136 [2020-10-16 11:22:51,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:51,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-16 11:22:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-16 11:22:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-16 11:22:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-16 11:22:51,556 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-16 11:22:51,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:51,557 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-16 11:22:51,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-16 11:22:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:22:51,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:51,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:51,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:22:51,559 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:51,560 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-10-16 11:22:51,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:51,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000278861] [2020-10-16 11:22:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:51,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000278861] [2020-10-16 11:22:51,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:51,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:51,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974480245] [2020-10-16 11:22:51,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:51,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:51,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:51,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:51,660 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-16 11:22:51,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:51,689 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-16 11:22:51,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:51,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 11:22:51,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:51,691 INFO L225 Difference]: With dead ends: 109 [2020-10-16 11:22:51,691 INFO L226 Difference]: Without dead ends: 109 [2020-10-16 11:22:51,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:51,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-16 11:22:51,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-16 11:22:51,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 11:22:51,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-16 11:22:51,696 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-16 11:22:51,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:51,697 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-16 11:22:51,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:51,697 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-16 11:22:51,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:22:51,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:51,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:51,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:22:51,699 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:51,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:51,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-10-16 11:22:51,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:51,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777041004] [2020-10-16 11:22:51,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:51,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777041004] [2020-10-16 11:22:51,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:51,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:51,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958334051] [2020-10-16 11:22:51,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:51,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:51,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:51,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:51,822 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-16 11:22:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:51,861 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-16 11:22:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:51,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:22:51,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:51,865 INFO L225 Difference]: With dead ends: 135 [2020-10-16 11:22:51,865 INFO L226 Difference]: Without dead ends: 85 [2020-10-16 11:22:51,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:22:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-16 11:22:51,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-16 11:22:51,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-16 11:22:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-16 11:22:51,874 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-16 11:22:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:51,874 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-16 11:22:51,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-16 11:22:51,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:22:51,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:51,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:51,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:22:51,878 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:51,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:51,879 INFO L82 PathProgramCache]: Analyzing trace with hash -739037833, now seen corresponding path program 2 times [2020-10-16 11:22:51,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:51,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135565365] [2020-10-16 11:22:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:51,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135565365] [2020-10-16 11:22:51,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:51,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:51,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757924725] [2020-10-16 11:22:51,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:51,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:51,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:51,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:51,972 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-10-16 11:22:52,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:52,002 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-16 11:22:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:52,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:22:52,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:52,004 INFO L225 Difference]: With dead ends: 99 [2020-10-16 11:22:52,004 INFO L226 Difference]: Without dead ends: 37 [2020-10-16 11:22:52,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:22:52,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-16 11:22:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-16 11:22:52,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-16 11:22:52,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-16 11:22:52,007 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-16 11:22:52,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:52,007 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-16 11:22:52,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:52,008 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-16 11:22:52,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:22:52,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:52,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:52,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:22:52,009 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:52,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:52,009 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-10-16 11:22:52,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:52,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653480398] [2020-10-16 11:22:52,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:52,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:52,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653480398] [2020-10-16 11:22:52,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:52,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:52,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952107680] [2020-10-16 11:22:52,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:52,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:52,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:52,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:52,071 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-10-16 11:22:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:52,109 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-16 11:22:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:52,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:22:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:52,110 INFO L225 Difference]: With dead ends: 36 [2020-10-16 11:22:52,110 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:22:52,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:22:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:22:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:22:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:22:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:22:52,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-16 11:22:52,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:52,112 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:22:52,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:52,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:22:52,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:22:52,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:22:52,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:22:52 BasicIcfg [2020-10-16 11:22:52,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:22:52,119 INFO L168 Benchmark]: Toolchain (without parser) took 4171.35 ms. Allocated memory was 145.2 MB in the beginning and 249.6 MB in the end (delta: 104.3 MB). Free memory was 98.1 MB in the beginning and 106.5 MB in the end (delta: -8.4 MB). Peak memory consumption was 96.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:52,120 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 145.2 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:22:52,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.13 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 97.9 MB in the beginning and 158.5 MB in the end (delta: -60.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:52,122 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.83 ms. Allocated memory is still 201.9 MB. Free memory was 158.5 MB in the beginning and 156.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:52,123 INFO L168 Benchmark]: Boogie Preprocessor took 30.45 ms. Allocated memory is still 201.9 MB. Free memory was 156.4 MB in the beginning and 155.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:52,124 INFO L168 Benchmark]: RCFGBuilder took 472.57 ms. Allocated memory is still 201.9 MB. Free memory was 155.0 MB in the beginning and 132.2 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:52,125 INFO L168 Benchmark]: TraceAbstraction took 2941.27 ms. Allocated memory was 201.9 MB in the beginning and 249.6 MB in the end (delta: 47.7 MB). Free memory was 131.5 MB in the beginning and 106.5 MB in the end (delta: 25.0 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:52,129 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 145.2 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.13 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 97.9 MB in the beginning and 158.5 MB in the end (delta: -60.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.83 ms. Allocated memory is still 201.9 MB. Free memory was 158.5 MB in the beginning and 156.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.45 ms. Allocated memory is still 201.9 MB. Free memory was 156.4 MB in the beginning and 155.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 472.57 ms. Allocated memory is still 201.9 MB. Free memory was 155.0 MB in the beginning and 132.2 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2941.27 ms. Allocated memory was 201.9 MB in the beginning and 249.6 MB in the end (delta: 47.7 MB). Free memory was 131.5 MB in the beginning and 106.5 MB in the end (delta: 25.0 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 808 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 66 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2447 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 139 SDtfs, 90 SDslu, 214 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...