/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:33:50,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:33:50,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:33:50,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:33:50,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:33:50,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:33:50,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:33:50,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:33:50,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:33:50,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:33:50,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:33:50,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:33:50,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:33:50,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:33:50,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:33:50,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:33:50,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:33:50,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:33:50,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:33:50,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:33:50,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:33:50,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:33:50,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:33:50,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:33:50,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 18:33:50,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 18:33:50,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 18:33:50,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 18:33:50,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 18:33:50,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 18:33:50,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:33:50,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:33:50,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:33:50,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:33:50,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:33:50,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:33:50,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:33:50,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:33:50,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:33:50,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:33:50,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:33:50,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:33:50,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:33:50,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:33:50,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:33:50,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:33:50,816 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:33:50,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:33:50,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:33:50,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:33:50,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:33:50,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:33:50,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:33:50,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:33:50,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:33:50,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:33:50,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:33:50,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:33:50,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:33:50,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:33:50,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:33:50,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:33:50,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:33:50,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:33:50,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:33:50,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:33:50,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:33:50,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:33:50,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:33:50,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:33:50,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:33:50,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:33:51,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:33:51,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:33:51,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:33:51,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:33:51,157 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:33:51,158 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-10-15 18:33:51,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a995cdf8/56526406ece8486391103c28243a4c9c/FLAGe2249751d [2020-10-15 18:33:51,780 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:33:51,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-10-15 18:33:51,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a995cdf8/56526406ece8486391103c28243a4c9c/FLAGe2249751d [2020-10-15 18:33:52,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a995cdf8/56526406ece8486391103c28243a4c9c [2020-10-15 18:33:52,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:33:52,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:33:52,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:33:52,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:33:52,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:33:52,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b8a8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52, skipping insertion in model container [2020-10-15 18:33:52,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:33:52,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:33:52,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:33:52,654 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:33:52,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:33:52,776 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:33:52,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52 WrapperNode [2020-10-15 18:33:52,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:33:52,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:33:52,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:33:52,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:33:52,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:33:52,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:33:52,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:33:52,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:33:52,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... [2020-10-15 18:33:52,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:33:52,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:33:52,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:33:52,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:33:52,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:33:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:33:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:33:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:33:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:33:52,913 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:33:52,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:33:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:33:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:33:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:33:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:33:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:33:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:33:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:33:52,916 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:33:53,281 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:33:53,281 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:33:53,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:33:53 BoogieIcfgContainer [2020-10-15 18:33:53,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:33:53,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:33:53,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:33:53,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:33:53,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:33:52" (1/3) ... [2020-10-15 18:33:53,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95b9a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:33:53, skipping insertion in model container [2020-10-15 18:33:53,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:52" (2/3) ... [2020-10-15 18:33:53,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95b9a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:33:53, skipping insertion in model container [2020-10-15 18:33:53,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:33:53" (3/3) ... [2020-10-15 18:33:53,292 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2020-10-15 18:33:53,304 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:33:53,304 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:33:53,311 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:33:53,312 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:33:53,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,339 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,339 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,340 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,340 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,340 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,341 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,341 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,341 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,341 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,342 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,342 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,347 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,348 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,357 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,359 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,359 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,366 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,366 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,366 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,367 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:53,388 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:33:53,407 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:33:53,407 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:33:53,407 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:33:53,407 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:33:53,408 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:33:53,408 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:33:53,408 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:33:53,408 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:33:53,421 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:33:53,424 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:33:53,427 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:33:53,429 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-15 18:33:53,477 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-15 18:33:53,477 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:33:53,486 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:33:53,488 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:33:55,024 INFO L132 LiptonReduction]: Checked pairs total: 2962 [2020-10-15 18:33:55,024 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-15 18:33:55,031 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 18:33:55,059 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 18:33:55,061 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 18:33:55,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:33:55,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:55,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:55,070 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:55,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:55,076 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-15 18:33:55,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:55,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252535076] [2020-10-15 18:33:55,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:55,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252535076] [2020-10-15 18:33:55,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:55,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:33:55,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688609637] [2020-10-15 18:33:55,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:55,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:55,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:55,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:55,301 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 18:33:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:55,361 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-15 18:33:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:55,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:33:55,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:55,379 INFO L225 Difference]: With dead ends: 282 [2020-10-15 18:33:55,380 INFO L226 Difference]: Without dead ends: 218 [2020-10-15 18:33:55,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:55,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-15 18:33:55,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-15 18:33:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-15 18:33:55,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-15 18:33:55,466 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-15 18:33:55,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:55,468 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-15 18:33:55,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-15 18:33:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:33:55,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:55,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:55,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:33:55,470 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:55,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:55,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-15 18:33:55,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:55,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600816045] [2020-10-15 18:33:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:55,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:55,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600816045] [2020-10-15 18:33:55,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:55,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:55,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712168684] [2020-10-15 18:33:55,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:55,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:55,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:55,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:55,588 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-15 18:33:55,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:55,628 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-15 18:33:55,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:55,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 18:33:55,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:55,633 INFO L225 Difference]: With dead ends: 202 [2020-10-15 18:33:55,633 INFO L226 Difference]: Without dead ends: 202 [2020-10-15 18:33:55,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:55,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-15 18:33:55,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-15 18:33:55,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-15 18:33:55,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-15 18:33:55,678 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-15 18:33:55,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:55,678 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-15 18:33:55,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:55,678 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-15 18:33:55,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:33:55,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:55,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:55,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:33:55,681 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:55,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:55,682 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-15 18:33:55,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:55,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646760239] [2020-10-15 18:33:55,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:55,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:55,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646760239] [2020-10-15 18:33:55,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:55,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:33:55,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828984137] [2020-10-15 18:33:55,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:55,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:55,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:55,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:55,762 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-15 18:33:55,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:55,771 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-15 18:33:55,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:55,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 18:33:55,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:55,773 INFO L225 Difference]: With dead ends: 198 [2020-10-15 18:33:55,773 INFO L226 Difference]: Without dead ends: 198 [2020-10-15 18:33:55,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:55,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-15 18:33:55,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-15 18:33:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-15 18:33:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-15 18:33:55,787 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-15 18:33:55,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:55,787 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-15 18:33:55,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:55,788 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-15 18:33:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:33:55,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:55,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:55,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:33:55,790 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:55,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:55,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-15 18:33:55,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:55,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593445162] [2020-10-15 18:33:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:55,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593445162] [2020-10-15 18:33:55,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:55,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:33:55,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073182568] [2020-10-15 18:33:55,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:55,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:55,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:55,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:55,831 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-15 18:33:55,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:55,839 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-15 18:33:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:55,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 18:33:55,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:55,842 INFO L225 Difference]: With dead ends: 192 [2020-10-15 18:33:55,842 INFO L226 Difference]: Without dead ends: 192 [2020-10-15 18:33:55,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:55,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-15 18:33:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-15 18:33:55,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-15 18:33:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-15 18:33:55,854 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-15 18:33:55,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:55,854 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-15 18:33:55,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-15 18:33:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:33:55,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:55,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:55,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:33:55,857 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:55,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:55,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-15 18:33:55,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:55,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754871330] [2020-10-15 18:33:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:55,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754871330] [2020-10-15 18:33:55,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:55,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:55,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416103723] [2020-10-15 18:33:55,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:55,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:55,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:55,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:55,964 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-10-15 18:33:56,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:56,002 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-10-15 18:33:56,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:33:56,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:33:56,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:56,005 INFO L225 Difference]: With dead ends: 224 [2020-10-15 18:33:56,006 INFO L226 Difference]: Without dead ends: 160 [2020-10-15 18:33:56,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:56,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-15 18:33:56,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-15 18:33:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-15 18:33:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-10-15 18:33:56,014 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-10-15 18:33:56,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:56,014 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-10-15 18:33:56,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-10-15 18:33:56,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:33:56,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:56,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:56,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:33:56,016 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:56,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:56,017 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-10-15 18:33:56,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:56,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219550804] [2020-10-15 18:33:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:56,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219550804] [2020-10-15 18:33:56,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:56,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:33:56,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871026] [2020-10-15 18:33:56,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:33:56,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:56,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:33:56,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:56,089 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-10-15 18:33:56,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:56,142 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-15 18:33:56,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:33:56,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:33:56,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:56,144 INFO L225 Difference]: With dead ends: 160 [2020-10-15 18:33:56,144 INFO L226 Difference]: Without dead ends: 123 [2020-10-15 18:33:56,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:33:56,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-15 18:33:56,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-15 18:33:56,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-15 18:33:56,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-15 18:33:56,149 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-10-15 18:33:56,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:56,149 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-15 18:33:56,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:33:56,150 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-15 18:33:56,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:33:56,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:56,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:56,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:33:56,152 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:56,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:56,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-10-15 18:33:56,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:56,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046603787] [2020-10-15 18:33:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:56,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046603787] [2020-10-15 18:33:56,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:56,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:56,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394987282] [2020-10-15 18:33:56,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:56,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:56,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:56,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:56,180 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-10-15 18:33:56,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:56,188 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-10-15 18:33:56,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:56,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 18:33:56,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:56,190 INFO L225 Difference]: With dead ends: 155 [2020-10-15 18:33:56,190 INFO L226 Difference]: Without dead ends: 124 [2020-10-15 18:33:56,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:56,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-15 18:33:56,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-10-15 18:33:56,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-15 18:33:56,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-10-15 18:33:56,195 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-10-15 18:33:56,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:56,196 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-10-15 18:33:56,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:56,196 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-10-15 18:33:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:33:56,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:56,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:56,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:33:56,198 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:56,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:56,198 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-10-15 18:33:56,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:56,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312039804] [2020-10-15 18:33:56,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:56,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312039804] [2020-10-15 18:33:56,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:56,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:33:56,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587819678] [2020-10-15 18:33:56,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:56,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:56,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:56,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:56,236 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-10-15 18:33:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:56,256 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-10-15 18:33:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:33:56,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 18:33:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:56,258 INFO L225 Difference]: With dead ends: 154 [2020-10-15 18:33:56,258 INFO L226 Difference]: Without dead ends: 116 [2020-10-15 18:33:56,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:56,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-15 18:33:56,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-10-15 18:33:56,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-15 18:33:56,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-10-15 18:33:56,263 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-10-15 18:33:56,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:56,263 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-10-15 18:33:56,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-10-15 18:33:56,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:33:56,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:56,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:56,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:33:56,265 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:56,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:56,265 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-10-15 18:33:56,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:56,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101976952] [2020-10-15 18:33:56,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:56,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:56,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101976952] [2020-10-15 18:33:56,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:56,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:33:56,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978910948] [2020-10-15 18:33:56,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:33:56,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:56,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:33:56,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:33:56,353 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-10-15 18:33:56,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:56,404 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-10-15 18:33:56,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:33:56,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 18:33:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:56,405 INFO L225 Difference]: With dead ends: 110 [2020-10-15 18:33:56,405 INFO L226 Difference]: Without dead ends: 38 [2020-10-15 18:33:56,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:33:56,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-15 18:33:56,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-15 18:33:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 18:33:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-15 18:33:56,408 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-10-15 18:33:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:56,408 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-15 18:33:56,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:33:56,409 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-15 18:33:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:33:56,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:56,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:56,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:33:56,410 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:56,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:56,410 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-10-15 18:33:56,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:56,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628286596] [2020-10-15 18:33:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:56,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628286596] [2020-10-15 18:33:56,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:56,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:33:56,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942150121] [2020-10-15 18:33:56,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:56,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:56,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:56,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:56,446 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-15 18:33:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:56,462 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-10-15 18:33:56,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:33:56,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:33:56,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:56,463 INFO L225 Difference]: With dead ends: 51 [2020-10-15 18:33:56,463 INFO L226 Difference]: Without dead ends: 30 [2020-10-15 18:33:56,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:56,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-15 18:33:56,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-15 18:33:56,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-15 18:33:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-15 18:33:56,467 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-15 18:33:56,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:56,467 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-15 18:33:56,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:56,468 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-15 18:33:56,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:33:56,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:56,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:56,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:33:56,469 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:56,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:56,469 INFO L82 PathProgramCache]: Analyzing trace with hash -34011261, now seen corresponding path program 2 times [2020-10-15 18:33:56,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:56,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756105868] [2020-10-15 18:33:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:56,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756105868] [2020-10-15 18:33:56,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:56,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:56,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741732027] [2020-10-15 18:33:56,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:56,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:56,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:56,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:56,519 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-15 18:33:56,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:56,535 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-15 18:33:56,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:33:56,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:33:56,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:56,537 INFO L225 Difference]: With dead ends: 29 [2020-10-15 18:33:56,537 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:33:56,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:56,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:33:56,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:33:56,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:33:56,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:33:56,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 18:33:56,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:56,538 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:33:56,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:56,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:33:56,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:33:56,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 18:33:56,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:33:56 BasicIcfg [2020-10-15 18:33:56,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:33:56,547 INFO L168 Benchmark]: Toolchain (without parser) took 4435.73 ms. Allocated memory was 250.6 MB in the beginning and 368.6 MB in the end (delta: 118.0 MB). Free memory was 206.6 MB in the beginning and 216.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 108.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:56,548 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 250.6 MB. Free memory was 228.7 MB in the beginning and 227.8 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-15 18:33:56,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.32 ms. Allocated memory was 250.6 MB in the beginning and 310.4 MB in the end (delta: 59.8 MB). Free memory was 205.8 MB in the beginning and 261.9 MB in the end (delta: -56.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:56,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.89 ms. Allocated memory is still 310.4 MB. Free memory was 261.9 MB in the beginning and 260.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:56,557 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 310.4 MB. Free memory was 260.3 MB in the beginning and 258.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:56,559 INFO L168 Benchmark]: RCFGBuilder took 432.90 ms. Allocated memory is still 310.4 MB. Free memory was 258.6 MB in the beginning and 235.7 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:56,564 INFO L168 Benchmark]: TraceAbstraction took 3259.46 ms. Allocated memory was 310.4 MB in the beginning and 368.6 MB in the end (delta: 58.2 MB). Free memory was 235.7 MB in the beginning and 216.1 MB in the end (delta: 19.6 MB). Peak memory consumption was 77.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:56,570 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 250.6 MB. Free memory was 228.7 MB in the beginning and 227.8 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 665.32 ms. Allocated memory was 250.6 MB in the beginning and 310.4 MB in the end (delta: 59.8 MB). Free memory was 205.8 MB in the beginning and 261.9 MB in the end (delta: -56.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.89 ms. Allocated memory is still 310.4 MB. Free memory was 261.9 MB in the beginning and 260.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 310.4 MB. Free memory was 260.3 MB in the beginning and 258.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 432.90 ms. Allocated memory is still 310.4 MB. Free memory was 258.6 MB in the beginning and 235.7 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3259.46 ms. Allocated memory was 310.4 MB in the beginning and 368.6 MB in the end (delta: 58.2 MB). Free memory was 235.7 MB in the beginning and 216.1 MB in the end (delta: 19.6 MB). Peak memory consumption was 77.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 824 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2962 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 216 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 130 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...