/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:05:56,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:05:56,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:05:56,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:05:56,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:05:56,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:05:56,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:05:56,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:05:56,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:05:56,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:05:56,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:05:56,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:05:56,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:05:56,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:05:56,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:05:56,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:05:56,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:05:56,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:05:56,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:05:56,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:05:56,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:05:56,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:05:56,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:05:56,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:05:56,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:05:56,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:05:56,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:05:56,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:05:56,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:05:56,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:05:56,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:05:56,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:05:56,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:05:56,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:05:56,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:05:56,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:05:56,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:05:56,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:05:56,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:05:56,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:05:56,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:05:56,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:05:56,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:05:56,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:05:56,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:05:56,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:05:56,626 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:05:56,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:05:56,626 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:05:56,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:05:56,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:05:56,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:05:56,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:05:56,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:05:56,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:05:56,627 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:05:56,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:05:56,628 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:05:56,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:05:56,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:05:56,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:05:56,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:05:56,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:05:56,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:05:56,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:05:56,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:05:56,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:05:56,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:05:56,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:05:56,630 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:05:56,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:05:56,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:05:56,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:05:56,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:05:56,964 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:05:56,965 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:05:56,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-10-21 23:05:57,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f894b8ec9/aededa77a62f4534b6f3ae558a472893/FLAG2b600992a [2020-10-21 23:05:57,497 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:05:57,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-10-21 23:05:57,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f894b8ec9/aededa77a62f4534b6f3ae558a472893/FLAG2b600992a [2020-10-21 23:05:57,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f894b8ec9/aededa77a62f4534b6f3ae558a472893 [2020-10-21 23:05:57,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:05:57,811 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:05:57,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:05:57,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:05:57,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:05:57,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:05:57" (1/1) ... [2020-10-21 23:05:57,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61503bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:57, skipping insertion in model container [2020-10-21 23:05:57,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:05:57" (1/1) ... [2020-10-21 23:05:57,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:05:57,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:05:58,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:05:58,410 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:05:58,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:05:58,526 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:05:58,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58 WrapperNode [2020-10-21 23:05:58,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:05:58,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:05:58,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:05:58,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:05:58,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... [2020-10-21 23:05:58,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... [2020-10-21 23:05:58,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:05:58,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:05:58,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:05:58,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:05:58,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... [2020-10-21 23:05:58,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... [2020-10-21 23:05:58,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... [2020-10-21 23:05:58,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... [2020-10-21 23:05:58,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... [2020-10-21 23:05:58,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... [2020-10-21 23:05:58,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... [2020-10-21 23:05:58,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:05:58,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:05:58,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:05:58,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:05:58,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:05:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:05:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:05:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:05:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:05:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:05:58,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:05:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:05:58,707 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:05:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:05:58,709 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:05:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:05:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:05:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:05:58,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:05:58,713 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:05:59,125 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:05:59,125 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:05:59,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:05:59 BoogieIcfgContainer [2020-10-21 23:05:59,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:05:59,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:05:59,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:05:59,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:05:59,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:05:57" (1/3) ... [2020-10-21 23:05:59,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d9b225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:05:59, skipping insertion in model container [2020-10-21 23:05:59,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:58" (2/3) ... [2020-10-21 23:05:59,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d9b225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:05:59, skipping insertion in model container [2020-10-21 23:05:59,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:05:59" (3/3) ... [2020-10-21 23:05:59,137 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2020-10-21 23:05:59,149 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:05:59,149 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:05:59,157 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:05:59,158 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:05:59,184 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,185 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,185 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,185 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,187 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,187 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,189 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,189 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,210 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,211 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:59,213 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:05:59,226 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 23:05:59,246 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:05:59,246 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:05:59,246 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:05:59,246 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:05:59,247 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:05:59,247 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:05:59,247 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:05:59,247 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:05:59,260 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:05:59,261 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 23:05:59,263 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 23:05:59,264 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-21 23:05:59,310 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-21 23:05:59,310 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:05:59,315 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 23:05:59,319 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 23:06:00,580 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-21 23:06:00,909 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 23:06:01,030 INFO L131 LiptonReduction]: Checked pairs total: 2822 [2020-10-21 23:06:01,031 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-10-21 23:06:01,037 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 23:06:01,066 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 23:06:01,068 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 23:06:01,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 23:06:01,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:01,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:01,077 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:01,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:01,082 INFO L82 PathProgramCache]: Analyzing trace with hash 406549293, now seen corresponding path program 1 times [2020-10-21 23:06:01,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:01,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170011146] [2020-10-21 23:06:01,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:01,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170011146] [2020-10-21 23:06:01,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:01,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:06:01,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209055499] [2020-10-21 23:06:01,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 23:06:01,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:01,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 23:06:01,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:06:01,281 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 23:06:01,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:01,311 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 23:06:01,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 23:06:01,313 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 23:06:01,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:01,330 INFO L225 Difference]: With dead ends: 362 [2020-10-21 23:06:01,331 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 23:06:01,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:06:01,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 23:06:01,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 23:06:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 23:06:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 23:06:01,411 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 23:06:01,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:01,412 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 23:06:01,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 23:06:01,412 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 23:06:01,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:06:01,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:01,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:01,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:06:01,414 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:01,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:01,415 INFO L82 PathProgramCache]: Analyzing trace with hash -281880887, now seen corresponding path program 1 times [2020-10-21 23:06:01,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:01,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771076182] [2020-10-21 23:06:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:01,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:01,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771076182] [2020-10-21 23:06:01,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:01,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:06:01,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874289818] [2020-10-21 23:06:01,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:06:01,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:01,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:06:01,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:01,546 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-21 23:06:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:01,564 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-21 23:06:01,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:06:01,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 23:06:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:01,567 INFO L225 Difference]: With dead ends: 217 [2020-10-21 23:06:01,567 INFO L226 Difference]: Without dead ends: 217 [2020-10-21 23:06:01,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:06:01,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-21 23:06:01,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-21 23:06:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-21 23:06:01,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-21 23:06:01,587 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-21 23:06:01,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:01,587 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-21 23:06:01,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:06:01,587 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-21 23:06:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:06:01,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:01,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:01,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:06:01,590 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:01,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:01,590 INFO L82 PathProgramCache]: Analyzing trace with hash -389577111, now seen corresponding path program 1 times [2020-10-21 23:06:01,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:01,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159612409] [2020-10-21 23:06:01,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:01,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159612409] [2020-10-21 23:06:01,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:01,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:06:01,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683667291] [2020-10-21 23:06:01,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:01,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:01,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:01,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:01,652 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-21 23:06:01,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:01,681 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-21 23:06:01,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:06:01,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 23:06:01,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:01,684 INFO L225 Difference]: With dead ends: 136 [2020-10-21 23:06:01,685 INFO L226 Difference]: Without dead ends: 136 [2020-10-21 23:06:01,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:01,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-21 23:06:01,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-21 23:06:01,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-21 23:06:01,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-21 23:06:01,694 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-21 23:06:01,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:01,694 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-21 23:06:01,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:01,695 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-21 23:06:01,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 23:06:01,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:01,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:01,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:06:01,697 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:01,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:01,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1823296511, now seen corresponding path program 1 times [2020-10-21 23:06:01,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:01,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604677595] [2020-10-21 23:06:01,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:01,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604677595] [2020-10-21 23:06:01,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:01,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:06:01,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153667118] [2020-10-21 23:06:01,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:06:01,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:01,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:06:01,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:01,784 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-21 23:06:01,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:01,811 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-21 23:06:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:06:01,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 23:06:01,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:01,812 INFO L225 Difference]: With dead ends: 109 [2020-10-21 23:06:01,813 INFO L226 Difference]: Without dead ends: 109 [2020-10-21 23:06:01,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:01,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-21 23:06:01,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-21 23:06:01,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 23:06:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-21 23:06:01,819 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-21 23:06:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:01,820 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-21 23:06:01,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:06:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-21 23:06:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:06:01,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:01,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:01,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:06:01,822 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:01,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:01,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1915158341, now seen corresponding path program 1 times [2020-10-21 23:06:01,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:01,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50264743] [2020-10-21 23:06:01,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:01,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50264743] [2020-10-21 23:06:01,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:01,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:06:01,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270765904] [2020-10-21 23:06:01,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:06:01,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:01,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:06:01,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:06:01,909 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-21 23:06:01,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:01,932 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-21 23:06:01,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:06:01,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 23:06:01,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:01,933 INFO L225 Difference]: With dead ends: 135 [2020-10-21 23:06:01,933 INFO L226 Difference]: Without dead ends: 55 [2020-10-21 23:06:01,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:01,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-21 23:06:01,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-21 23:06:01,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-21 23:06:01,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-21 23:06:01,938 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-21 23:06:01,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:01,938 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-21 23:06:01,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:06:01,938 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-21 23:06:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:06:01,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:01,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:01,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:06:01,940 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:01,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:01,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1566003365, now seen corresponding path program 2 times [2020-10-21 23:06:01,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:01,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57965727] [2020-10-21 23:06:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:02,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57965727] [2020-10-21 23:06:02,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:02,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:06:02,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4610993] [2020-10-21 23:06:02,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:06:02,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:02,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:06:02,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:02,024 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-21 23:06:02,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:02,060 INFO L93 Difference]: Finished difference Result 69 states and 121 transitions. [2020-10-21 23:06:02,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:06:02,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 23:06:02,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:02,061 INFO L225 Difference]: With dead ends: 69 [2020-10-21 23:06:02,062 INFO L226 Difference]: Without dead ends: 31 [2020-10-21 23:06:02,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:06:02,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-21 23:06:02,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-21 23:06:02,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-21 23:06:02,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-10-21 23:06:02,065 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 18 [2020-10-21 23:06:02,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:02,065 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-10-21 23:06:02,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:06:02,065 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-10-21 23:06:02,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:06:02,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:06:02,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:06:02,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:06:02,066 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:06:02,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:06:02,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1541967813, now seen corresponding path program 3 times [2020-10-21 23:06:02,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:06:02,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395019523] [2020-10-21 23:06:02,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:06:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:06:02,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:06:02,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395019523] [2020-10-21 23:06:02,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:06:02,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:06:02,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807199729] [2020-10-21 23:06:02,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:06:02,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:06:02,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:06:02,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:06:02,161 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 5 states. [2020-10-21 23:06:02,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:06:02,194 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2020-10-21 23:06:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:06:02,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 23:06:02,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:06:02,195 INFO L225 Difference]: With dead ends: 30 [2020-10-21 23:06:02,195 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:06:02,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:06:02,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:06:02,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:06:02,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:06:02,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:06:02,197 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 23:06:02,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:06:02,197 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:06:02,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:06:02,197 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:06:02,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:06:02,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:06:02,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:06:02 BasicIcfg [2020-10-21 23:06:02,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:06:02,205 INFO L168 Benchmark]: Toolchain (without parser) took 4397.81 ms. Allocated memory was 138.4 MB in the beginning and 252.7 MB in the end (delta: 114.3 MB). Free memory was 99.7 MB in the beginning and 192.8 MB in the end (delta: -93.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:02,208 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 23:06:02,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.96 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 98.6 MB in the beginning and 154.9 MB in the end (delta: -56.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:02,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.34 ms. Allocated memory is still 200.8 MB. Free memory was 154.9 MB in the beginning and 152.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:02,212 INFO L168 Benchmark]: Boogie Preprocessor took 48.55 ms. Allocated memory is still 200.8 MB. Free memory was 152.1 MB in the beginning and 150.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:02,213 INFO L168 Benchmark]: RCFGBuilder took 503.62 ms. Allocated memory is still 200.8 MB. Free memory was 150.8 MB in the beginning and 127.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-21 23:06:02,216 INFO L168 Benchmark]: TraceAbstraction took 3072.31 ms. Allocated memory was 200.8 MB in the beginning and 252.7 MB in the end (delta: 51.9 MB). Free memory was 126.3 MB in the beginning and 192.8 MB in the end (delta: -66.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 23:06:02,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 712.96 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 98.6 MB in the beginning and 154.9 MB in the end (delta: -56.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.34 ms. Allocated memory is still 200.8 MB. Free memory was 154.9 MB in the beginning and 152.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.55 ms. Allocated memory is still 200.8 MB. Free memory was 152.1 MB in the beginning and 150.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 503.62 ms. Allocated memory is still 200.8 MB. Free memory was 150.8 MB in the beginning and 127.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3072.31 ms. Allocated memory was 200.8 MB in the beginning and 252.7 MB in the end (delta: 51.9 MB). Free memory was 126.3 MB in the beginning and 192.8 MB in the end (delta: -66.5 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 812 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 56 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2822 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 129 SDtfs, 85 SDslu, 171 SDs, 0 SdLazy, 55 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3355 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...