/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:50:44,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:50:44,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:50:44,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:50:44,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:50:44,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:50:44,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:50:44,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:50:44,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:50:44,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:50:44,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:50:44,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:50:44,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:50:44,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:50:44,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:50:44,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:50:44,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:50:44,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:50:44,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:50:44,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:50:44,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:50:44,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:50:44,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:50:44,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:50:44,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:50:44,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:50:44,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:50:44,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:50:44,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:50:44,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:50:44,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:50:44,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:50:44,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:50:44,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:50:44,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:50:44,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:50:44,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:50:44,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:50:44,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:50:44,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:50:44,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:50:44,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:50:44,680 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:50:44,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:50:44,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:50:44,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:50:44,683 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:50:44,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:50:44,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:50:44,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:50:44,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:50:44,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:50:44,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:50:44,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:50:44,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:50:44,686 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:50:44,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:50:44,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:50:44,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:50:44,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:50:44,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:50:44,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:50:44,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:50:44,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:50:44,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:50:44,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:50:44,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:50:44,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:50:44,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:50:44,688 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:50:44,688 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:50:44,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:50:44,689 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:50:44,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:50:44,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:50:44,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:50:44,988 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:50:44,989 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:50:44,989 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i [2020-10-16 13:50:45,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b40e1df71/e649350647cc4db0bd6e5a1c74c23e02/FLAG7156c2643 [2020-10-16 13:50:45,618 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:50:45,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i [2020-10-16 13:50:45,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b40e1df71/e649350647cc4db0bd6e5a1c74c23e02/FLAG7156c2643 [2020-10-16 13:50:45,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b40e1df71/e649350647cc4db0bd6e5a1c74c23e02 [2020-10-16 13:50:45,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:50:45,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:50:45,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:50:45,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:50:45,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:50:45,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:50:45" (1/1) ... [2020-10-16 13:50:45,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4ca9b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:45, skipping insertion in model container [2020-10-16 13:50:45,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:50:45" (1/1) ... [2020-10-16 13:50:45,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:50:45,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:50:46,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:50:46,418 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:50:46,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:50:46,548 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:50:46,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46 WrapperNode [2020-10-16 13:50:46,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:50:46,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:50:46,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:50:46,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:50:46,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (1/1) ... [2020-10-16 13:50:46,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (1/1) ... [2020-10-16 13:50:46,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:50:46,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:50:46,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:50:46,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:50:46,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (1/1) ... [2020-10-16 13:50:46,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (1/1) ... [2020-10-16 13:50:46,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (1/1) ... [2020-10-16 13:50:46,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (1/1) ... [2020-10-16 13:50:46,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (1/1) ... [2020-10-16 13:50:46,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (1/1) ... [2020-10-16 13:50:46,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (1/1) ... [2020-10-16 13:50:46,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:50:46,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:50:46,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:50:46,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:50:46,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (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 13:50:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:50:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:50:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:50:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:50:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:50:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:50:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:50:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:50:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:50:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:50:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:50:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:50:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:50:46,730 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 13:50:47,118 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:50:47,119 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:50:47,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:50:47 BoogieIcfgContainer [2020-10-16 13:50:47,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:50:47,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:50:47,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:50:47,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:50:47,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:50:45" (1/3) ... [2020-10-16 13:50:47,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2ca8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:50:47, skipping insertion in model container [2020-10-16 13:50:47,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:46" (2/3) ... [2020-10-16 13:50:47,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2ca8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:50:47, skipping insertion in model container [2020-10-16 13:50:47,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:50:47" (3/3) ... [2020-10-16 13:50:47,131 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_rmo.opt.i [2020-10-16 13:50:47,143 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:50:47,143 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:50:47,152 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:50:47,153 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:50:47,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,184 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,185 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,185 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,190 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,191 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,197 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,206 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,206 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,207 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:47,209 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:50:47,222 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:50:47,245 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:50:47,245 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:50:47,245 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:50:47,245 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:50:47,245 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:50:47,246 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:50:47,246 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:50:47,246 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:50:47,260 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:50:47,261 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:50:47,264 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:50:47,266 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-16 13:50:47,310 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-16 13:50:47,311 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:50:47,316 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 13:50:47,318 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:50:48,381 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-16 13:50:48,460 INFO L132 LiptonReduction]: Checked pairs total: 2447 [2020-10-16 13:50:48,461 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 13:50:48,468 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 13:50:48,500 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 13:50:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 13:50:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:50:48,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:48,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:48,513 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:48,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:48,519 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-10-16 13:50:48,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:48,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974141387] [2020-10-16 13:50:48,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:48,730 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 13:50:48,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974141387] [2020-10-16 13:50:48,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:48,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:50:48,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1039877398] [2020-10-16 13:50:48,734 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:48,737 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:48,751 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:50:48,751 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:48,755 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:48,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:50:48,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:48,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:50:48,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:50:48,773 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 13:50:48,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:48,796 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 13:50:48,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:50:48,798 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 13:50:48,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:48,814 INFO L225 Difference]: With dead ends: 362 [2020-10-16 13:50:48,815 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 13:50:48,816 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 13:50:48,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 13:50:48,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 13:50:48,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 13:50:48,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 13:50:48,898 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 13:50:48,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:48,899 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 13:50:48,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:50:48,900 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 13:50:48,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:50:48,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:48,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:48,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:50:48,902 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:48,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:48,902 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-10-16 13:50:48,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:48,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833669361] [2020-10-16 13:50:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:49,004 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 13:50:49,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833669361] [2020-10-16 13:50:49,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:49,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:50:49,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [590334551] [2020-10-16 13:50:49,006 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:49,006 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:49,008 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 13:50:49,008 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:49,009 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:49,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:50:49,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:49,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:50:49,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:50:49,011 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-16 13:50:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:49,033 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-16 13:50:49,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:50:49,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 13:50:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:49,037 INFO L225 Difference]: With dead ends: 217 [2020-10-16 13:50:49,037 INFO L226 Difference]: Without dead ends: 217 [2020-10-16 13:50:49,038 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 13:50:49,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-16 13:50:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-16 13:50:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-16 13:50:49,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-16 13:50:49,056 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-16 13:50:49,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:49,056 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-16 13:50:49,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:50:49,057 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-16 13:50:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:50:49,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:49,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:49,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:50:49,059 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:49,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:49,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-10-16 13:50:49,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:49,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978931972] [2020-10-16 13:50:49,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:49,137 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 13:50:49,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978931972] [2020-10-16 13:50:49,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:49,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:50:49,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1262687882] [2020-10-16 13:50:49,139 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:49,140 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:49,145 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 36 transitions. [2020-10-16 13:50:49,145 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:49,249 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2424#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:50:49,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:50:49,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:49,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:50:49,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:50:49,251 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 5 states. [2020-10-16 13:50:49,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:49,277 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-16 13:50:49,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:50:49,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:50:49,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:49,280 INFO L225 Difference]: With dead ends: 136 [2020-10-16 13:50:49,280 INFO L226 Difference]: Without dead ends: 136 [2020-10-16 13:50:49,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 13:50:49,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-16 13:50:49,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-16 13:50:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-16 13:50:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-16 13:50:49,289 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-16 13:50:49,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:49,290 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-16 13:50:49,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:50:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-16 13:50:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:50:49,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:49,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:49,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:50:49,292 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:49,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:49,293 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-10-16 13:50:49,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:49,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465578164] [2020-10-16 13:50:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:49,406 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 13:50:49,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465578164] [2020-10-16 13:50:49,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:49,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:50:49,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1361435959] [2020-10-16 13:50:49,408 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:49,413 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:49,417 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 49 transitions. [2020-10-16 13:50:49,417 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:49,566 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2838#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:50:49,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 13:50:49,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:49,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 13:50:49,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-16 13:50:49,568 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-10-16 13:50:49,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:49,604 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-16 13:50:49,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:50:49,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-16 13:50:49,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:49,607 INFO L225 Difference]: With dead ends: 109 [2020-10-16 13:50:49,607 INFO L226 Difference]: Without dead ends: 109 [2020-10-16 13:50:49,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-16 13:50:49,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-16 13:50:49,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-16 13:50:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 13:50:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-16 13:50:49,615 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-16 13:50:49,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:49,615 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-16 13:50:49,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 13:50:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-16 13:50:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:50:49,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:49,617 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 13:50:49,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:50:49,617 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:49,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:49,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-10-16 13:50:49,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:49,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448494236] [2020-10-16 13:50:49,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:49,698 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 13:50:49,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448494236] [2020-10-16 13:50:49,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:49,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:50:49,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1111704769] [2020-10-16 13:50:49,699 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:49,701 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:49,709 INFO L258 McrAutomatonBuilder]: Finished intersection with 50 states and 85 transitions. [2020-10-16 13:50:49,709 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:49,794 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:49,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:50:49,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:49,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:50:49,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:50:49,795 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-16 13:50:49,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:49,828 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-16 13:50:49,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:50:49,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 13:50:49,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:49,829 INFO L225 Difference]: With dead ends: 135 [2020-10-16 13:50:49,829 INFO L226 Difference]: Without dead ends: 55 [2020-10-16 13:50:49,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 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 13:50:49,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-16 13:50:49,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-16 13:50:49,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-16 13:50:49,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-16 13:50:49,833 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-16 13:50:49,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:49,834 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-16 13:50:49,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:50:49,834 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-16 13:50:49,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:50:49,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:49,835 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 13:50:49,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:50:49,835 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:49,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:49,836 INFO L82 PathProgramCache]: Analyzing trace with hash -442498565, now seen corresponding path program 2 times [2020-10-16 13:50:49,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:49,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117289468] [2020-10-16 13:50:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:49,900 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 13:50:49,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117289468] [2020-10-16 13:50:49,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:49,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:50:49,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [41669835] [2020-10-16 13:50:49,901 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:49,904 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:49,909 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 26 transitions. [2020-10-16 13:50:49,909 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:49,919 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:49,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:50:49,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:49,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:50:49,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:50:49,920 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-16 13:50:49,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:49,952 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2020-10-16 13:50:49,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:50:49,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 13:50:49,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:49,954 INFO L225 Difference]: With dead ends: 75 [2020-10-16 13:50:49,954 INFO L226 Difference]: Without dead ends: 37 [2020-10-16 13:50:49,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 13:50:49,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-16 13:50:49,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-16 13:50:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-16 13:50:49,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-16 13:50:49,957 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-16 13:50:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:49,957 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-16 13:50:49,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:50:49,958 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-16 13:50:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:50:49,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:49,959 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 13:50:49,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:50:49,959 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:49,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:49,959 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-10-16 13:50:49,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:49,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322042002] [2020-10-16 13:50:49,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:50,019 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 13:50:50,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322042002] [2020-10-16 13:50:50,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:50,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:50:50,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1212947016] [2020-10-16 13:50:50,038 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:50,039 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:50,043 INFO L258 McrAutomatonBuilder]: Finished intersection with 29 states and 38 transitions. [2020-10-16 13:50:50,043 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:50,089 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:50,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:50:50,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:50,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:50:50,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:50:50,090 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-10-16 13:50:50,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:50,119 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-16 13:50:50,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:50:50,119 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 13:50:50,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:50,120 INFO L225 Difference]: With dead ends: 36 [2020-10-16 13:50:50,120 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:50:50,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 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 13:50:50,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:50:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:50:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:50:50,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:50:50,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-16 13:50:50,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:50,122 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:50:50,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:50:50,122 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:50:50,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:50:50,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:50:50,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:50:50 BasicIcfg [2020-10-16 13:50:50,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:50:50,128 INFO L168 Benchmark]: Toolchain (without parser) took 4209.17 ms. Allocated memory was 138.4 MB in the beginning and 250.1 MB in the end (delta: 111.7 MB). Free memory was 100.2 MB in the beginning and 204.0 MB in the end (delta: -103.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:50,129 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:50:50,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.58 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 156.5 MB in the end (delta: -56.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:50,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.91 ms. Allocated memory is still 201.9 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:50,131 INFO L168 Benchmark]: Boogie Preprocessor took 26.24 ms. Allocated memory is still 201.9 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:50,132 INFO L168 Benchmark]: RCFGBuilder took 468.45 ms. Allocated memory is still 201.9 MB. Free memory was 153.1 MB in the beginning and 130.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:50,133 INFO L168 Benchmark]: TraceAbstraction took 3003.20 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 129.7 MB in the beginning and 204.0 MB in the end (delta: -74.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:50:50,137 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 629.58 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 156.5 MB in the end (delta: -56.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 75.91 ms. Allocated memory is still 201.9 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.24 ms. Allocated memory is still 201.9 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 468.45 ms. Allocated memory is still 201.9 MB. Free memory was 153.1 MB in the beginning and 130.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3003.20 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 129.7 MB in the beginning and 204.0 MB in the end (delta: -74.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 656 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 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: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 138 SDtfs, 82 SDslu, 227 SDs, 0 SdLazy, 64 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 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, 3491 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...